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Renewable Energy Sources are those energy sources which are not destroyed when their energy is harnessed. The model of wind turbine is based on the steady state power characteristics of the turbine. The stiffness of the drive train is infinite and the friction factor and the inertia of the turbine must be combined with those of the generator coupled to the turbine. In this paper, variable speed wind turbine driving permanent magnet synchronous generator with current controlled voltage source inverter has been proposed. Detailed modeling and control strategies of the overall system has been developed. It is found that under the proposed control strategy the system runs smoothly under randomly and quickly varying wind condition. During both symmetrical and unsymmetrical fault conditions, the system is found stable. Results shows that by using Current Source Inverter CSI stability of wind power can be achieved. By using CSI based Controller voltage source inverter or any separate storage energy system is not required. A model is used to determine the behavior of the wind turbine, induction generator and load. Arshid Mehraj | Harjit Singh | Onkar Singh "Design and Analysis of Artificial Intelligence Based Approach for Control of Wind Turbine" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020, URL: https://www.ijtsrd.com/papers/ijtsrd38107.pdf Paper URL : https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/38107/design-and-analysis-of-artificial-intelligence-based-approach-for-control-of-wind-turbine/arshid-mehraj
Design and Analysis of Artificial Intelligence Based Approach for Control of ...
Design and Analysis of Artificial Intelligence Based Approach for Control of ...
ijtsrd
https://www.irjet.net/archives/V5/i11/IRJET-V5I11211.pdf
IRJET- Electricity Generation by Maglev Windmill
IRJET- Electricity Generation by Maglev Windmill
IRJET Journal
Abstract: With very rapid development of wind power technologies and significant growth of wind power capacity installed worldwide, various wind turbine concepts have been developed. The wind energy conversion system is required to be more cost-competitive, so that comparisons of different wind generator systems are necessary. A literature review of different types wind energy conversion systems is presented. First, the modern wind turbines are described with respect to both their control features and drive train types, and their advantages and disadvantages are described. Then, the quantitative comparison and market penetration of different wind generator systems are presented. The promising permanent magnet generator types are also investigated. After that the ongoing trends of wind generator systems and related comparison criteria are discussed.
Analysis and Comparisons of Different Type of WCES- A Literature Review
Analysis and Comparisons of Different Type of WCES- A Literature Review
paperpublications3
Wind energy from railways
Proposed model
Proposed model
rahulhirem
https://irjet.net/archives/V7/i2/IRJET-V7I2617.pdf
IRJET - Design & Construction of Combined Axis Wind Turbine with Solar Power ...
IRJET - Design & Construction of Combined Axis Wind Turbine with Solar Power ...
IRJET Journal
https://www.irjet.net/archives/V6/i3/IRJET-V6I3671.pdf
IRJET- Design and Analysis of Highway Wind Power Generation using Vertical Ax...
IRJET- Design and Analysis of Highway Wind Power Generation using Vertical Ax...
IRJET Journal
Offshore Wind Energy – Potential for India This presentation analyze energy demand scenario, especially that of almost unlimited wind energy and highlight vast potential of offshore wind energy for India in territorial water along its long coastline. Challenges to exploit this potential, financial viability of such offshore energy projects, social, environmental, and other related issues are discussed in Indian context to serve as a useful tool for policymakers to allocate resources for detailed studies for estimation and its ultimate utilization to add to growing pool of renewable energy
OFFSHORE WIND ENERGY
OFFSHORE WIND ENERGY
Madan Singh
Wind energy is playing a critical role in the establishment of an environmentally sustainable low carbon economy. This paper presents an overview of wind turbine generator technologies and compares their advantages and drawbacks used for wind energy utilization. Traditionally, DC machines, synchronous machines and squirrel-cage induction machines have been used for small scale power generation. For medium and large wind turbines (WTs), the doubly-fed induction generator (DFIG) is currently the dominant technology while permanent magnet (PM), switched reluctance and high temperature superconducting generators are all extensively researched and developed over the years. In this paper, the topologies and features of these machines are discussed with special attention given to their practical considerations involved in the design, control and operation. It is hoped that this paper provides quick reference guidelines for developing wind turbine generation systems.
Effectual and Lossless Electrical Power Generation Methodology using Wind-Len...
Effectual and Lossless Electrical Power Generation Methodology using Wind-Len...
Associate Professor in VSB Coimbatore
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Renewable Energy Sources are those energy sources which are not destroyed when their energy is harnessed. The model of wind turbine is based on the steady state power characteristics of the turbine. The stiffness of the drive train is infinite and the friction factor and the inertia of the turbine must be combined with those of the generator coupled to the turbine. In this paper, variable speed wind turbine driving permanent magnet synchronous generator with current controlled voltage source inverter has been proposed. Detailed modeling and control strategies of the overall system has been developed. It is found that under the proposed control strategy the system runs smoothly under randomly and quickly varying wind condition. During both symmetrical and unsymmetrical fault conditions, the system is found stable. Results shows that by using Current Source Inverter CSI stability of wind power can be achieved. By using CSI based Controller voltage source inverter or any separate storage energy system is not required. A model is used to determine the behavior of the wind turbine, induction generator and load. Arshid Mehraj | Harjit Singh | Onkar Singh "Design and Analysis of Artificial Intelligence Based Approach for Control of Wind Turbine" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020, URL: https://www.ijtsrd.com/papers/ijtsrd38107.pdf Paper URL : https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/38107/design-and-analysis-of-artificial-intelligence-based-approach-for-control-of-wind-turbine/arshid-mehraj
Design and Analysis of Artificial Intelligence Based Approach for Control of ...
Design and Analysis of Artificial Intelligence Based Approach for Control of ...
ijtsrd
https://www.irjet.net/archives/V5/i11/IRJET-V5I11211.pdf
IRJET- Electricity Generation by Maglev Windmill
IRJET- Electricity Generation by Maglev Windmill
IRJET Journal
Abstract: With very rapid development of wind power technologies and significant growth of wind power capacity installed worldwide, various wind turbine concepts have been developed. The wind energy conversion system is required to be more cost-competitive, so that comparisons of different wind generator systems are necessary. A literature review of different types wind energy conversion systems is presented. First, the modern wind turbines are described with respect to both their control features and drive train types, and their advantages and disadvantages are described. Then, the quantitative comparison and market penetration of different wind generator systems are presented. The promising permanent magnet generator types are also investigated. After that the ongoing trends of wind generator systems and related comparison criteria are discussed.
Analysis and Comparisons of Different Type of WCES- A Literature Review
Analysis and Comparisons of Different Type of WCES- A Literature Review
paperpublications3
Wind energy from railways
Proposed model
Proposed model
rahulhirem
https://irjet.net/archives/V7/i2/IRJET-V7I2617.pdf
IRJET - Design & Construction of Combined Axis Wind Turbine with Solar Power ...
IRJET - Design & Construction of Combined Axis Wind Turbine with Solar Power ...
IRJET Journal
https://www.irjet.net/archives/V6/i3/IRJET-V6I3671.pdf
IRJET- Design and Analysis of Highway Wind Power Generation using Vertical Ax...
IRJET- Design and Analysis of Highway Wind Power Generation using Vertical Ax...
IRJET Journal
Offshore Wind Energy – Potential for India This presentation analyze energy demand scenario, especially that of almost unlimited wind energy and highlight vast potential of offshore wind energy for India in territorial water along its long coastline. Challenges to exploit this potential, financial viability of such offshore energy projects, social, environmental, and other related issues are discussed in Indian context to serve as a useful tool for policymakers to allocate resources for detailed studies for estimation and its ultimate utilization to add to growing pool of renewable energy
OFFSHORE WIND ENERGY
OFFSHORE WIND ENERGY
Madan Singh
Wind energy is playing a critical role in the establishment of an environmentally sustainable low carbon economy. This paper presents an overview of wind turbine generator technologies and compares their advantages and drawbacks used for wind energy utilization. Traditionally, DC machines, synchronous machines and squirrel-cage induction machines have been used for small scale power generation. For medium and large wind turbines (WTs), the doubly-fed induction generator (DFIG) is currently the dominant technology while permanent magnet (PM), switched reluctance and high temperature superconducting generators are all extensively researched and developed over the years. In this paper, the topologies and features of these machines are discussed with special attention given to their practical considerations involved in the design, control and operation. It is hoped that this paper provides quick reference guidelines for developing wind turbine generation systems.
Effectual and Lossless Electrical Power Generation Methodology using Wind-Len...
Effectual and Lossless Electrical Power Generation Methodology using Wind-Len...
Associate Professor in VSB Coimbatore
FUTURE RENEWABLE ENERGY SYSTEM..
AIRBORNE WIND TURBINE SYSTEM
AIRBORNE WIND TURBINE SYSTEM
sathish shankar
Modeling and experimental analysis of variable speed three phase squirrel 2
Modeling and experimental analysis of variable speed three phase squirrel 2
IAEME Publication
M046017079
M046017079
IJERA Editor
This is report prepared by me on Airborne Wind Turbines (AWT). It consists of the types of wind turbines used today. Types of prototypes in the airborne sector, and a brief working of them.
Airborne Wind Turbines - A report
Airborne Wind Turbines - A report
Parag Deshpande
what is air borne wind energy system and how it is work and types of wind energy system history of air borne wind energy system mathematical calculation related to awes all are in this pdf
Air borne wind energy system (AWES)
Air borne wind energy system (AWES)
Ankit Panghal
wint turbe
T2 free energy-converted
T2 free energy-converted
eduardo MORALES ESLACHIN
A technical Report from Scope e-Knowledge Center
Airborne wind turbines
Airborne wind turbines
Scope e-Knowledge Center
With the consciousness on green energy as well as the positive industrial growth outlook, the energy gap between the demand and supply has to be filled by renewable energy sources alone. This paved for a renewed interest in wind energy systems. Though there is a good research already been done in low altitude wind power extraction, the focus on high altitude wind energy systems is undermined. There is a tremendous scope as well as challenges associated with these systems. This paper investigates the paradigms, generator selection, generation control and transmission modes of high altitude wind energy systems. Also various aspects of feasibility, installation and control methods are critically reviewed.
A Review and Aspects of High Altitude Wind Power Generation
A Review and Aspects of High Altitude Wind Power Generation
Ayyarao T S L V
In this paper, a time stepping 2D and 3D FEM is performed for modeling and analysis interior rotor DFIG .The finite element method currently represents the state-of-the-art in the numerical magnetic field computation relating to electrical machines. FEM is a numerical method to solve the partial differential equations (PDE) that expresses the physical quantities of interest, in this case Maxwell’s equations. This will result in a more accurate result compared to analytical modeling, which can be regarded as a simplification of the PDE. FEM analysis is used for transient mode, magnetic field calculation, the magnetic flux density and vector potential of machine is obtained. In this model we including, non linear material characteristics, eddy current effect, torque-speed characteristics, ambient temperature effect and magnetic analysis are investigated.
Design and Simulation Analysis of Outer Stator Inner Rotor DFIG by 2d and 3d ...
Design and Simulation Analysis of Outer Stator Inner Rotor DFIG by 2d and 3d ...
Mellah Hacene
This is the methodology to conversion of electricity through wind energy using convergent nozzle in low wind speed area. By the help of this process of conversion we convert low wind speed in sufficient power conversion with the use of nozzle. Then this maximizes the wind speed, that maximum wind speed rotate fan blade at useful speed level. And then sufficient amount of energy are produced
A PROPOSAL FOR WIND-ENERGY CONVERSION FOR LOW WIND–SPEED AREAS OF INDIA
A PROPOSAL FOR WIND-ENERGY CONVERSION FOR LOW WIND–SPEED AREAS OF INDIA
IAEME Publication
https://irjet.net/archives/V4/i1/IRJET-V4I1350.pdf
Aeroelastic Flutter Energy Harvesting
Aeroelastic Flutter Energy Harvesting
IRJET Journal
https://www.irjet.net/archives/V4/i2/IRJET-V4I228.pdf
Vertical Axis Wind Turbine using MAGLEV Technology
Vertical Axis Wind Turbine using MAGLEV Technology
IRJET Journal
https://irjet.net/archives/V4/i7/IRJET-V4I7251.pdf
Enhancement of Dynamic Stability and Voltage Control of a Grid-Connected Offs...
Enhancement of Dynamic Stability and Voltage Control of a Grid-Connected Offs...
IRJET Journal
Design and construction of vertical axis wind turbine
Design and construction of vertical axis wind turbine
Design and construction of vertical axis wind turbine
IAEME Publication
https://irjet.net/archives/V7/i7/IRJET-V7I7608.pdf
IRJET - Measurement and Analysis of the Voltage Current Characteristic of a M...
IRJET - Measurement and Analysis of the Voltage Current Characteristic of a M...
IRJET Journal
In this paper, a time stepping 2D and 3D FEM is performed for modeling and analysis external rotor DFIG .The finite element method currently represents the state-of-the-art in the numerical magnetic field computation relating to electrical machines. FEM is a numerical method to solve the partial differential equations (PDE) that expresses the physical quantities of interest, in this case Maxwell’s equations. This will result in a more accurate result compared to analytical modeling, which can be regarded as a simplification of the PDE. FEM analysis is used for transient mode, magnetic field calculation, the magnetic flux density and vector potential of machine is obtained. In this model we including, non linear material characteristics, eddy current effect, torque-speed characteristics, ambient temperature effect and magnetic analysis are investigated using MAXWELL program. With this program, the components of the DFIG can be calculated with high accuracy.
Design and analysis of an external rotor internal-stator doubly fed induction...
Design and analysis of an external rotor internal-stator doubly fed induction...
Mellah Hacene
We are convinced that Airborne Wind is transforming from a niche curiosity into a structured industry. Key technical challenges are being solved one after the other and the industry needs specialized suppliers to reap the benefits of scale economies and faster development cycles. The evaluation committee asked very thoughtful questions and their feedback is helping us grow. We hope to have convinced them that airborne wind is no longer a children's game but a realistic game changer. (Abridged version of a presentation given at STW/RVO in Utrech on 19 May 2017, Aenarete/Tu-Delft)
Smart Components for Airborne Wind Energy
Smart Components for Airborne Wind Energy
Gael Ludovic de Oliveira Andrade
High Altitude Wind energy with Air Borne Module and its comparison with conventional wind turbine.
High altitude wind Energy
High altitude wind Energy
Dipali Savaliya
There is huge activity in wind power,pan-India with the instal led capacity increasing to 10,000MW. India today has the fifth largest installed capacity of wind power in the world w ith 11087MW installed capacity and potential for on-shore capabilities of 65000MW. However the plant load factor (PLF) in wi nd power generation is very low,often in the single digits. The increase in interest in wind energy is due to inves tment subsidies,tax holidays,and government action towards renewable energy playing a big part in nation�s energy system. T here is a need to generate environment friendly power that not only raises energy efficiency and is sustainable too. The time has come for moving to generation based subsidies and understanding the drawbacks associated with wind power in India. The capital cost of wind power is third higher than Conventional thermal power;further electrical problems like v oltage flicker and variable frequency affect the implementation of wind farm. However advances in technologies such as offshore construction of wind turbines,advanced control methodologies,and simulation of wind energy affecting over all grid performance are making a case for wind energy.
An Overview of Wind Power Generation and Design Aspects in India
An Overview of Wind Power Generation and Design Aspects in India
ijiert bestjournal
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Maglev windmill
Maglev windmill
eSAT Publishing House
free
Design and simulation analysis of outer stator inner rotor DFIG by 2d and 3d ...
Design and simulation analysis of outer stator inner rotor DFIG by 2d and 3d ...
Mellah Hacene
RENEWABLE ENERGY
Vertical axis wind turbiine
Vertical axis wind turbiine
riyasingh189
Más contenido relacionado
La actualidad más candente
FUTURE RENEWABLE ENERGY SYSTEM..
AIRBORNE WIND TURBINE SYSTEM
AIRBORNE WIND TURBINE SYSTEM
sathish shankar
Modeling and experimental analysis of variable speed three phase squirrel 2
Modeling and experimental analysis of variable speed three phase squirrel 2
IAEME Publication
M046017079
M046017079
IJERA Editor
This is report prepared by me on Airborne Wind Turbines (AWT). It consists of the types of wind turbines used today. Types of prototypes in the airborne sector, and a brief working of them.
Airborne Wind Turbines - A report
Airborne Wind Turbines - A report
Parag Deshpande
what is air borne wind energy system and how it is work and types of wind energy system history of air borne wind energy system mathematical calculation related to awes all are in this pdf
Air borne wind energy system (AWES)
Air borne wind energy system (AWES)
Ankit Panghal
wint turbe
T2 free energy-converted
T2 free energy-converted
eduardo MORALES ESLACHIN
A technical Report from Scope e-Knowledge Center
Airborne wind turbines
Airborne wind turbines
Scope e-Knowledge Center
With the consciousness on green energy as well as the positive industrial growth outlook, the energy gap between the demand and supply has to be filled by renewable energy sources alone. This paved for a renewed interest in wind energy systems. Though there is a good research already been done in low altitude wind power extraction, the focus on high altitude wind energy systems is undermined. There is a tremendous scope as well as challenges associated with these systems. This paper investigates the paradigms, generator selection, generation control and transmission modes of high altitude wind energy systems. Also various aspects of feasibility, installation and control methods are critically reviewed.
A Review and Aspects of High Altitude Wind Power Generation
A Review and Aspects of High Altitude Wind Power Generation
Ayyarao T S L V
In this paper, a time stepping 2D and 3D FEM is performed for modeling and analysis interior rotor DFIG .The finite element method currently represents the state-of-the-art in the numerical magnetic field computation relating to electrical machines. FEM is a numerical method to solve the partial differential equations (PDE) that expresses the physical quantities of interest, in this case Maxwell’s equations. This will result in a more accurate result compared to analytical modeling, which can be regarded as a simplification of the PDE. FEM analysis is used for transient mode, magnetic field calculation, the magnetic flux density and vector potential of machine is obtained. In this model we including, non linear material characteristics, eddy current effect, torque-speed characteristics, ambient temperature effect and magnetic analysis are investigated.
Design and Simulation Analysis of Outer Stator Inner Rotor DFIG by 2d and 3d ...
Design and Simulation Analysis of Outer Stator Inner Rotor DFIG by 2d and 3d ...
Mellah Hacene
This is the methodology to conversion of electricity through wind energy using convergent nozzle in low wind speed area. By the help of this process of conversion we convert low wind speed in sufficient power conversion with the use of nozzle. Then this maximizes the wind speed, that maximum wind speed rotate fan blade at useful speed level. And then sufficient amount of energy are produced
A PROPOSAL FOR WIND-ENERGY CONVERSION FOR LOW WIND–SPEED AREAS OF INDIA
A PROPOSAL FOR WIND-ENERGY CONVERSION FOR LOW WIND–SPEED AREAS OF INDIA
IAEME Publication
https://irjet.net/archives/V4/i1/IRJET-V4I1350.pdf
Aeroelastic Flutter Energy Harvesting
Aeroelastic Flutter Energy Harvesting
IRJET Journal
https://www.irjet.net/archives/V4/i2/IRJET-V4I228.pdf
Vertical Axis Wind Turbine using MAGLEV Technology
Vertical Axis Wind Turbine using MAGLEV Technology
IRJET Journal
https://irjet.net/archives/V4/i7/IRJET-V4I7251.pdf
Enhancement of Dynamic Stability and Voltage Control of a Grid-Connected Offs...
Enhancement of Dynamic Stability and Voltage Control of a Grid-Connected Offs...
IRJET Journal
Design and construction of vertical axis wind turbine
Design and construction of vertical axis wind turbine
Design and construction of vertical axis wind turbine
IAEME Publication
https://irjet.net/archives/V7/i7/IRJET-V7I7608.pdf
IRJET - Measurement and Analysis of the Voltage Current Characteristic of a M...
IRJET - Measurement and Analysis of the Voltage Current Characteristic of a M...
IRJET Journal
In this paper, a time stepping 2D and 3D FEM is performed for modeling and analysis external rotor DFIG .The finite element method currently represents the state-of-the-art in the numerical magnetic field computation relating to electrical machines. FEM is a numerical method to solve the partial differential equations (PDE) that expresses the physical quantities of interest, in this case Maxwell’s equations. This will result in a more accurate result compared to analytical modeling, which can be regarded as a simplification of the PDE. FEM analysis is used for transient mode, magnetic field calculation, the magnetic flux density and vector potential of machine is obtained. In this model we including, non linear material characteristics, eddy current effect, torque-speed characteristics, ambient temperature effect and magnetic analysis are investigated using MAXWELL program. With this program, the components of the DFIG can be calculated with high accuracy.
Design and analysis of an external rotor internal-stator doubly fed induction...
Design and analysis of an external rotor internal-stator doubly fed induction...
Mellah Hacene
We are convinced that Airborne Wind is transforming from a niche curiosity into a structured industry. Key technical challenges are being solved one after the other and the industry needs specialized suppliers to reap the benefits of scale economies and faster development cycles. The evaluation committee asked very thoughtful questions and their feedback is helping us grow. We hope to have convinced them that airborne wind is no longer a children's game but a realistic game changer. (Abridged version of a presentation given at STW/RVO in Utrech on 19 May 2017, Aenarete/Tu-Delft)
Smart Components for Airborne Wind Energy
Smart Components for Airborne Wind Energy
Gael Ludovic de Oliveira Andrade
High Altitude Wind energy with Air Borne Module and its comparison with conventional wind turbine.
High altitude wind Energy
High altitude wind Energy
Dipali Savaliya
La actualidad más candente
(18)
AIRBORNE WIND TURBINE SYSTEM
AIRBORNE WIND TURBINE SYSTEM
Modeling and experimental analysis of variable speed three phase squirrel 2
Modeling and experimental analysis of variable speed three phase squirrel 2
M046017079
M046017079
Airborne Wind Turbines - A report
Airborne Wind Turbines - A report
Air borne wind energy system (AWES)
Air borne wind energy system (AWES)
T2 free energy-converted
T2 free energy-converted
Airborne wind turbines
Airborne wind turbines
A Review and Aspects of High Altitude Wind Power Generation
A Review and Aspects of High Altitude Wind Power Generation
Design and Simulation Analysis of Outer Stator Inner Rotor DFIG by 2d and 3d ...
Design and Simulation Analysis of Outer Stator Inner Rotor DFIG by 2d and 3d ...
A PROPOSAL FOR WIND-ENERGY CONVERSION FOR LOW WIND–SPEED AREAS OF INDIA
A PROPOSAL FOR WIND-ENERGY CONVERSION FOR LOW WIND–SPEED AREAS OF INDIA
Aeroelastic Flutter Energy Harvesting
Aeroelastic Flutter Energy Harvesting
Vertical Axis Wind Turbine using MAGLEV Technology
Vertical Axis Wind Turbine using MAGLEV Technology
Enhancement of Dynamic Stability and Voltage Control of a Grid-Connected Offs...
Enhancement of Dynamic Stability and Voltage Control of a Grid-Connected Offs...
Design and construction of vertical axis wind turbine
Design and construction of vertical axis wind turbine
IRJET - Measurement and Analysis of the Voltage Current Characteristic of a M...
IRJET - Measurement and Analysis of the Voltage Current Characteristic of a M...
Design and analysis of an external rotor internal-stator doubly fed induction...
Design and analysis of an external rotor internal-stator doubly fed induction...
Smart Components for Airborne Wind Energy
Smart Components for Airborne Wind Energy
High altitude wind Energy
High altitude wind Energy
Similar a 40220140503008
There is huge activity in wind power,pan-India with the instal led capacity increasing to 10,000MW. India today has the fifth largest installed capacity of wind power in the world w ith 11087MW installed capacity and potential for on-shore capabilities of 65000MW. However the plant load factor (PLF) in wi nd power generation is very low,often in the single digits. The increase in interest in wind energy is due to inves tment subsidies,tax holidays,and government action towards renewable energy playing a big part in nation�s energy system. T here is a need to generate environment friendly power that not only raises energy efficiency and is sustainable too. The time has come for moving to generation based subsidies and understanding the drawbacks associated with wind power in India. The capital cost of wind power is third higher than Conventional thermal power;further electrical problems like v oltage flicker and variable frequency affect the implementation of wind farm. However advances in technologies such as offshore construction of wind turbines,advanced control methodologies,and simulation of wind energy affecting over all grid performance are making a case for wind energy.
An Overview of Wind Power Generation and Design Aspects in India
An Overview of Wind Power Generation and Design Aspects in India
ijiert bestjournal
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Maglev windmill
Maglev windmill
eSAT Publishing House
free
Design and simulation analysis of outer stator inner rotor DFIG by 2d and 3d ...
Design and simulation analysis of outer stator inner rotor DFIG by 2d and 3d ...
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Vertical axis wind turbiine
Vertical axis wind turbiine
riyasingh189
Today many industries are rapidly growing to the wind energy generation. Nowadays, the need of energy resources is increasing at a much faster rate. We need to capitalize all the available options to complete all our needs with ease. For this, inventions such as T BOX are very helpful. As it needs only wind from passing trains to produce the energy. Since fasting is going on for alternative forms of treatment, T box has created hope. This device introduces a new generation of wind energy generator producing very prominent in techno buffs. That's it however, it is important to remember, that the design is still in a conceptual state, so that in the future, the ‘use and maintenance of this device has not been resolved. Our evolution shows that i Constructing electricity Using the concept of rotation of wind turbine by hawking rail. ii Using air tight coat to reduce large pressure and use it to control wind flow. The mouth of casing provided with valve to control the wind flow. To provide full mechanical support to the Train. Vaghela P. M | Thorat P. D | Lakudzode K. B | Prof. Udamle S. R ""Train Mounting T-Box for Wind Power Generation"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23933.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/23933/train-mounting-t-box-for-wind-power-generation/vaghela-p-m
Train Mounting T Box for Wind Power Generation
Train Mounting T Box for Wind Power Generation
ijtsrd
wind energy from railways
Proposed model
Proposed model
rahulhirem
https://www.irjet.net/archives/V6/i7/IRJET-V6I7119.pdf
IRJET- A Revieiw of Wind Energy Potential in Kano State, Nigeria for the ...
IRJET- A Revieiw of Wind Energy Potential in Kano State, Nigeria for the ...
IRJET Journal
https://www.irjet.net/archives/V10/i7/IRJET-V10I726.pdf
Mitigation of Voltage Dip and Swell Faults in Wind Energy Conversion Systems
Mitigation of Voltage Dip and Swell Faults in Wind Energy Conversion Systems
IRJET Journal
In this study, the fossil fuel usage by-product is carbon dioxide, which is known as the primary cause in global warming. Alternatively, wind energy is a clean alternative energy source compared the fuel consumption can cause smoke pollution. The goal of the work is to develop a pollution controller device model Savonius wind turbine to represent the characterized actual speed wind turbine concepts into convert kinetic energy into electric energy from campus and monitoring all output data display on the cloud. The wind speed operation is enabled through the use of ESP8266 as internet of things (IoT) platform and the alternating current (AC) direct current (DC) harvesting circuit into improve stability of the wind energy performance. Secondly, a magnet coil synchronous generator is used, which is a grid coupled through a diode rectifier and voltage source converter. The parameters that have been measured using wireless fidelity (Wi-Fi) module ESP8266 are considering wind speed, current, voltage and power. The wind speed with 7.8 MPH can produce a maximum output voltage and output current of 1.104 V and 4.321 µA, respectively. Blynk applications functional as role present performance monitoring kit wind turbine analysis with more precise and efficient in anywhere and anytime.
Design of Savonius model wind turbine for power catchment
Design of Savonius model wind turbine for power catchment
IJECEIAES
Wind energy brief overview
Wind energy brief overview
Mukit Ahmed Chowdhury
https://www.irjet.net/archives/V9/i5/IRJET-V9I5737.pdf
Study and Analysis on Bladeless Wind Turbine
Study and Analysis on Bladeless Wind Turbine
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https://www.irjet.net/archives/V6/i7/IRJET-V6I7320.pdf
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IRJET- Re-Wind Energy: Air Conditioner Assisted Energy Generation Using M...
IRJET Journal
Wind is the flow of gases on large scale. On the surface of the earth, wind consists of the bulk movement of air. In outer space, solar wind is the movement of gases and charged particles from the sun though space, while planetary wind is the outgassing of light chemical from a planet’s atmosphere into space. Wind by their spatial scale, their speed, the type of force that cause them, the region in which they occur and their effect. The strongest observed winds on planet in solar system occur on Neptune and Saturn. Winds have various aspects, an important one being its velocity, density of the gas involved and energy content of the wind. Wind is almost entirely caused by the effects of the sun which, each hour, delivers 175 million watts of energy to the earth. This energy heats the planet’s surface, most intensively at the equator, which causes air to rise. This rising air creates an area of low pressure at the surface into which cooler air is sucked, and it is this flow of air that we know as “wind”. In reality atmospheric circulation is much more complicated and, after rising at the equator air travels pole wards. As it travels the air cools and eventually descends to the earth’s surface at about 30° latitude (north and south), from where it returns once again to the equator (a closed loop known as a Hadley Cell). Similar cells exist between 30° and 60° latitude (the Ferrell Cells) and between 60° latitude and each of the poles (the Polar Cells). Within these cells, the flow of air is further impacted by the rotation of the earth or the "Coriolis Effect". This effect creates a sideways force which causes air to circulate anticlockwise around areas of low pressure in the northern hemisphere and clockwise in the southern hemisphere In summary, the origin of winds may be traced basically to uneven heating of the earth’s surface due to sun. This may lead to circulation of widespread winds on a global basis, producing planetary winds or may have a limited influence in a smaller area to cause local winds.
WIND ENERGY REPORT AE 215- 2018 SOURCES OF FARM POWER
WIND ENERGY REPORT AE 215- 2018 SOURCES OF FARM POWER
musadoto
Wind turbines form complex nonlinear mechanical systems exposed to uncontrolled wind profiles. This makes turbine controller design a challenging task. As such, control of wind energy conversion systems (WECS) is difficult due to the lack of systematic methods to identify requisite robust and sufficiently stable conditions, to guarantee performance. The problem becomes more complex when plant parameters become uncertain. This paper considers the wind energy curtailment for which it provides a combinatorial planning model to maximize wind power utilization. The major objective of this study is to develop an effective method for optimizing size of wind. A novel multiobjective adaptation of the fuzzy based Harmony Search algorithm is proposed and tested for efficiently solving the problem of optimally deploying wind turbines in wind farms. In this paper, Harmony Search Algorithm (HSA) using fuzzy controller to achieve better optimization results and to increase performance. A general formulation of this algorithm is presented together with an analytical and mathematical modeling to solve the stability and performance of the system.
[IJET V2I4P8] Authors: Anju.S, Achu Govind K R
[IJET V2I4P8] Authors: Anju.S, Achu Govind K R
IJET - International Journal of Engineering and Techniques
Battery energy storage and power electronics based voltage and frequency cont...
Battery energy storage and power electronics based voltage and frequency cont...
IAEME Publication
all you need to know about wind energy
Wind energy
Wind energy
sstms1
https://www.irjet.net/archives/V4/i11/IRJET-V4I11286.pdf
Review of different Fault Ride through (FRT) Control Strategies for a DFIG Wi...
Review of different Fault Ride through (FRT) Control Strategies for a DFIG Wi...
IRJET Journal
Paper Writing Service http://StudyHub.vip/A-Review-Of-Vortex-Bladeless-Wind-Turbi 👈
A Review Of Vortex Bladeless Wind Turbine And Vorticity Effects
A Review Of Vortex Bladeless Wind Turbine And Vorticity Effects
Brittany Allen
In the field of renewable energy, conversion of wind energy has become a point of major interest to the researcher. Converters are no more a small part of the wind energy system WES due to the development of generators in the WES and advancement in applications of power electronics in the WES. This paper presents a review of different topologies of converts used in the extraction of energy from wind using various generators and their combination with different converter topologies. Control scheme complexity, cost, the power consumed, and efficiency are the points considered for the comparison of converters-generator combination schemes. Tanuj Jhankal "A Review on Various Topologies of Generators, Power Converters and Control Schemes in Wind Energy Systems" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd47510.pdf Paper URL : https://www.ijtsrd.com/engineering/electrical-engineering/47510/a-review-on-various-topologies-of-generators-power-converters-and-control-schemes-in-wind-energy-systems/tanuj-jhankal
A Review on Various Topologies of Generators, Power Converters and Control Sc...
A Review on Various Topologies of Generators, Power Converters and Control Sc...
ijtsrd
https://irjet.net/archives/V7/i1/IRJET-V7I1352.pdf
IRJET- Manufacturing System of Hybrid Vertical Axis Wind Turbine
IRJET- Manufacturing System of Hybrid Vertical Axis Wind Turbine
IRJET Journal
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An Overview of Wind Power Generation and Design Aspects in India
An Overview of Wind Power Generation and Design Aspects in India
Maglev windmill
Maglev windmill
Design and simulation analysis of outer stator inner rotor DFIG by 2d and 3d ...
Design and simulation analysis of outer stator inner rotor DFIG by 2d and 3d ...
Vertical axis wind turbiine
Vertical axis wind turbiine
Train Mounting T Box for Wind Power Generation
Train Mounting T Box for Wind Power Generation
Proposed model
Proposed model
IRJET- A Revieiw of Wind Energy Potential in Kano State, Nigeria for the ...
IRJET- A Revieiw of Wind Energy Potential in Kano State, Nigeria for the ...
Mitigation of Voltage Dip and Swell Faults in Wind Energy Conversion Systems
Mitigation of Voltage Dip and Swell Faults in Wind Energy Conversion Systems
Design of Savonius model wind turbine for power catchment
Design of Savonius model wind turbine for power catchment
Wind energy brief overview
Wind energy brief overview
Study and Analysis on Bladeless Wind Turbine
Study and Analysis on Bladeless Wind Turbine
IRJET- Re-Wind Energy: Air Conditioner Assisted Energy Generation Using M...
IRJET- Re-Wind Energy: Air Conditioner Assisted Energy Generation Using M...
WIND ENERGY REPORT AE 215- 2018 SOURCES OF FARM POWER
WIND ENERGY REPORT AE 215- 2018 SOURCES OF FARM POWER
[IJET V2I4P8] Authors: Anju.S, Achu Govind K R
[IJET V2I4P8] Authors: Anju.S, Achu Govind K R
Battery energy storage and power electronics based voltage and frequency cont...
Battery energy storage and power electronics based voltage and frequency cont...
Wind energy
Wind energy
Review of different Fault Ride through (FRT) Control Strategies for a DFIG Wi...
Review of different Fault Ride through (FRT) Control Strategies for a DFIG Wi...
A Review Of Vortex Bladeless Wind Turbine And Vorticity Effects
A Review Of Vortex Bladeless Wind Turbine And Vorticity Effects
A Review on Various Topologies of Generators, Power Converters and Control Sc...
A Review on Various Topologies of Generators, Power Converters and Control Sc...
IRJET- Manufacturing System of Hybrid Vertical Axis Wind Turbine
IRJET- Manufacturing System of Hybrid Vertical Axis Wind Turbine
Más de IAEME Publication
Submission Deadline: 30th September 2022 Acceptance Notification: Within Three Days’ time period Online Publication: Within 24 Hrs. time Period Expected Date of Dispatch of Printed Journal: 5th October 2022
IAEME_Publication_Call_for_Paper_September_2022.pdf
IAEME_Publication_Call_for_Paper_September_2022.pdf
IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
IAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURS
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURS
IAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURS
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURS
IAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONS
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONS
IAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONS
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONS
IAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINO
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINO
IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...
IAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMY
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMY
IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...
IAEME Publication
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
GANDHI ON NON-VIOLENT POLICE
GANDHI ON NON-VIOLENT POLICE
IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...
IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...
IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...
IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...
IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...
IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...
IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...
IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...
IAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENT
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENT
IAEME Publication
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IAEME_Publication_Call_for_Paper_September_2022.pdf
IAEME_Publication_Call_for_Paper_September_2022.pdf
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...
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This instalment looked at building performance at the earliest stages of your project, covering Interoperability, Solar and Daylighting.
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ScyllaDB has the potential to deliver impressive performance and scalability. The better you understand how it works, the more you can squeeze out of it. But before you squeeze, make sure you know what to monitor! Watch our experienced Postgres developer work through monitoring and performance strategies that help him understand what mistakes he’s made moving to NoSQL. And learn with him as our database performance expert offers friendly guidance on how to use monitoring and performance tuning to get his sample Rust application on the right track. This webinar focuses on using monitoring and performance tuning to discover and correct mistakes that commonly occur when developers move from SQL to NoSQL. For example: - Common issues getting up and running with the monitoring stack - Using the CQL optimizations dashboard - Common issues causing high latency in a node - Common issues causing replica imbalance - What a healthy system looks like in terms of memory - Key metrics to keep an eye on This isn’t “Death-by-Powerpoint.” We’ll walk through problems encountered while migrating a real application from Postgres to ScyllaDB – and try to fix them live as well.
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When you think of a highly secure meeting environment, do you instantly think 'Microsoft Teams'!? Or do you think about some unknown application, troublesome UI and daunting login process...? If you think the latter - let's change that! In this session Femke will show you how using Teams Premium features can create secure, but also good looking meetings! PRETTY. Make sure your company's brand is represented before, during and after the meeting with Customization policies in place. SECURE. Lets utilize Meeting templates and Sensitivity Labels to protect your meeting and data to prevent sensitive information from being leaked. After this session, you will have a clear understanding of the capabilities of Teams Premium features and how to set up the perfect meeting that suits your organizational requirements!
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IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
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IOS-PENTESTING-BEGINNERS-PRACTICAL-GUIDE-.pptx
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To Graph or Not to Graph Knowledge Graph Architectures and LLMs
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What's New in Teams Calling, Meetings and Devices April 2024
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1.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 69 PITCH ANGLE CONTROL OF VARIABLE SPEED WIND TURBINE GENERATION Prof. Suparna Pal1 , Debasis Jana2 1 Professor, Department of Electrical Engineering, JISCE, Kalyani, India 2 Post Graduates student, Department of Electrical Engineering, JISCE, Kalyani, India ABSTRACT Wind energy is a variable option to complement other types of pollution-free generation. In the early development of wind energy, the majority of wind turbines were operated at constant speed. Recently, the number of variable-speed wind turbines installed in wind farms has increased and more wind turbine manufacturers are making variable-speed wind turbines. This paper describes the modeling of the various components in a pitch controlled wind energy system and the design of the pitch controller, and discusses the response of the pitch- controlled system to wind velocity variations. The pitch function provides full control over the mechanical power and is the most common control technique used in variable speed wind turbines. At wind speeds below the rated power of the generator, the pitch angle is at its maximum; however, it can be lowered to help the wind turbine (WT) accelerate faster. At the rated wind speed, the pitch angle is controlled to keep the generator at the rated power by reducing the angle of the blades. Keywords: Wind Power Generation, Pitch Control of Wind Turbine, Variable Speed Wind Turbine, MATLAB/SIMULINK. INTRODUCTION The wind industry has experienced large growth rates over the past decade and wind turbines have been installed around the world in increasing quantities. As wind energy becomes more prevalent there is growing interest in controlling wind turbines or wind plants in an intelligent manner to minimize the cost of wind energy. This can be done by controlling the turbines to extract more energy from the wind and reduce structural loads that can cause component failure and is the focus of ongoing research. Though wind energy makes up a relatively small amount of global energy production, there are certain regions that produce a significant portion of their energy from the wind, INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY (IJEET) ISSN 0976 – 6545(Print) ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME: www.iaeme.com/IJEET.asp Journal Impact Factor (2014): 6.8310 (Calculated by GISI) www.jifactor.com IJEET © I A E M E
2.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 70 such as Spain, Ireland, and Denmark. The increasing penetrations of wind energy in these countries have raised interest in a new branch of wind turbine control research and development that focuses on wind turbine participation in frequency regulation for the utility grid. Grid operators require conventional utilities to provide regulation in order to maintain the necessary balance between generation and load, which in turn regulates the grid frequency. Wind power has not historically been required to provide grid regulation services, as most modern wind turbines do not intrinsically provide any of the grid regulation services that are available with conventional generators. High wind penetration levels in the aforementioned countries have lead their transmission system operators to impose new requirements for future wind plant installations to be capable of providing power tracking and frequency regulation services when there is ample wind resource available. Variable-speed wind turbine generation has been gaining momentum, as shown by the number of companies joining the variable-speed WTG market. Variable-speed generation is claimed to have a better energy capture and lower loading. The effect of turbulence on energy capture and power fluctuations in variable-speed wind turbines is affected by the overall control algorithm used. The method of controlling the generator strongly affects the electrical power generated by the generator [1]. GROWTH OF THE WIND ENERGY INDUSTRY Wind energy is a quickly growing alternative energy technology that can provide clean power. According to the World Wind Energy Association, the average growth rate of installed capacity around the world over the last decade has been 27.7% [2]. In 2010, worldwide capacity reached 196,630 MW (megawatts) out of which 37,642 MW was added during 2010, for a growth rate of 23.6% [2]. During 2010, the United States increased installed wind capacity from 35,159 MW to 40,180 MW. China almost doubled installed capacity in 2010, growing from 25,810 MW to 44,733 MW, to pass Germany and the US and become the number one country in installed capacity [2]. 2010 brought a 59% capacity increase in offshore wind, bringing the total to 3,117 MW, all of which is located in Europe, Japan, and China [2]. As wind turbine technology continues to mature, wind energy is becoming a larger portion of the global energy profile. The ‘penetration’ of wind energy in the local utility grid, which refers to the percentage of electrical energy generation that comes from wind energy sources, is an important metric to measure. Though wind energy provided only 2.5% of the global electrical energy supply in 2010, several countries have a relatively high percentage of their electrical energy produced by wind power. The countries with the highest percentage of electrical energy generated from wind in 2010 were Denmark, Portugal, Spain, and Germany with 21%, 18%, 16%, and 9%, respectively [2]. It should be noted that these percentages are annual averages. At times the instantaneous percentage of total power provided by wind can be much higher. Wind energy achieved a maximum instantaneous penetration level of 59.6% in Spain in 2011. The high wind penetrations in these countries have been achieved not only from having good wind resources available, but also by aggressive national policies to produce more energy from renewable sources. Wind turbines have increased in size to take advantage of economies of scale. The turbines installed in the U.S. during 2010 had an average rated power of 1.79 MW with average hub heights and rotor diameters of 79.8 and 84.3 meters, respectively [3]. The average rated power of turbines installed in the US has not increased significantly during the past 3 years due to the challenges associated with transporting extremely large turbines over land and the popularity of a particular 1.5 MW turbine model. The installation of turbines is also subject to economies of scale, as it is more profitable to cluster wind turbines together to reduce the cost of installation, maintenance, and transmission line construction.
3.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 71 WIND TURBINE OVERVIEW By definition, a wind turbine is a rotary device that extracts energy from the wind. If the energy captured from the wind is used for machining purposes such as cutting lumber or grinding stones, the machine is called a windmill. If on the other hand, it is used for pumping water, it is referred to as a wind pump. Wind turbines can be broadly classified into two types: a. Horizontal axis wind turbine b. Vertical axis wind turbine. Figure 1: Schematic diagram of a horizontal axis wind turbine and a vertical axis wind turbine Horizontal Axis Wind Turbine A turbine with rotor axis of rotation that is horizontal to the ground is called a HAWT (Horizontal Axis Wind Turbine). HAWTs are representative of the majority of all large scale wind turbines today. These turbines are operated in an upwind manner, where the rotor plane is actively positioned to be directly upwind of the tower through the use of a yaw motor that rotates the entire nacelle. Horizontal Axis Wind Turbines can be further divided into three types: i. Dutch Windmills ii. Multi-blade Water-pumping Windmills iii. High-speed Propeller type Wind Machines Figure 2 shows the internal equipment in a horizontal axis wind turbine.
4.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 72 Figure 2: Internal diagram of a Horizontal axis wind turbine Vertical Axis Wind Turbine Vertical-axis wind turbines (VAWTs) are a type of wind turbine where the main rotor shaft is set vertically and the main components are located at the base of the turbine. Among the advantages of this arrangement are that generators and gearboxes can be placed close to the ground, which makes these components easier to service and repair, and that VAWTs do not need to be pointed into the wind. Major drawbacks for the early designs (Savonius, Darrieus and giromill) included the pulsatory torque that can be produced during each revolution and the huge bending moments on the blades. Later designs solved the torque issue by using the helical twist of the blades almost similar to Gorlov's water turbines [4]. A VAWT tipped sideways, with the axis perpendicular to the wind streamlines, functions similarly. A more general term that includes this option is "transverse axis wind turbine". Drag-type VAWTs, such as the Savonius rotor, typically operate at lower tip speed ratios than lift-based VAWTs such as Darrieus rotors and cyclo turbines [4]. Figure 3 shows the internal diagram of a vertical axis wind turbine.
5.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 73 Figure 3: Internal diagram of a Vertical axis wind turbine WIND TURBINE CHARACTERISTICS The wind turbine can be characterized by its CP-TSR (curve as shown in Figure 4), where the TSR is the tip-speed ratio; that is, the ratio between the linear speed of the tip of the blade with respect to the wind speed. It is shown that the power coefficient CP varies with the tip-speed ratio. It is assumed that the wind turbine is operated at high CP values most of the time. In a fixed-frequency application, the rotor speed of the induction generator varies by a few percent (based on the slip) above the synchronous speed while the speed of the wind may vary across a wide range.
6.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 74 Figure 4: Power co-efficient versus Tip speed ratio curve In Figure 4, the change of the CP-TSR curve as the pitch angle is adjusted is also shown. In low to medium wind speeds, the pitch angle is controlled to allow the wind turbine to operate at its optimum condition. In the high wind speed region, the pitch angle is increased to shed some of the aerodynamic power. The mechanical power Pm is extracted from the wind. The following formula describes Pm Pm = 0.5 ρπR2v3Cp (λ, Ѳ) Where, Pm is the mechanical power ρ is the air density R is the turbine’s radius v is the wind speed Cp is the power coefficient λ is the tip speed ratio Ѳ is the pitch angle λ is defined as: λ= ω୫ୖ ௩ Where ωm is the turbine rotation speed R is the turbine’s radius v is the wind speed The extracted mechanical power Pm is proportional to the cube of the wind speed v. The power coefficient Cp affects Pm. Cp is a function of the tip speed ratio λ and of the pitch angle Ѳ. λ describes the ratio between the system rotational speed ωm and v. Ѳ is the angle between the wind flow direction and the turbine blade. Increasing Ѳ moves the blades out of the wind, thereby reducing the effective wind area.
7.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 75 The Ideal Operation Curve of the Wind Turbine Wind turbines operate in a certain range of wind speed. When the wind speed is less than normal, usually 12 meters per second (m/s), the turbine extracts less energy than the rated power. In this case, the turbine is expected to operate at its most efficient point by using the variable-speed, constant-frequency operation and to extract as much energy as possible. When the wind speed is greater than normal, the turbine must limit its energy utilization to keep the extracted energy at the maximum allowable level. Otherwise, if the turbine generates too much energy, the over-load might damage the whole turbine system. Usually the controller leverages the pitch angle control to limit the power absorption. Figure 3 shows this ideal operation curve. You can see the power optimization phase, below 12 m/s, and the power limitation phase above 12 m/s. Figure 5: Ideal Operation Curve of a Wind Turbine WIND TURBINE CONTROL When a generator reaches its rated power, the turbines must limit the magnitude of mechanical power delivered to the generator. For example a generator in typical wind turbines reaches its rated power at wind speeds of 15 m/s to 25 m/s, and thus, must decrease in energy collection at higher wind speeds. This energy collection control is achieved by either stall, pitch, or a combination of them both, called active stall. There are no moving parts in stall-controlled blades, and the challenge in this control technique is proper blade construction to avoid vibration and permit a gradual stalling. The pitch function provides full control over the mechanical power. The pitch angle is controlled to keep the generator at the rated power by reducing the angle of the blades. By actuating the blade angle to be at the limit of the stalling, fast torque changes in the wind speed can be tolerated.
8.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 76 PITCH CONTROL OF WIND TURBINE PITCH The pitch angle is the angle at which the blade surface contacts the wind. It is often variable to ensure optimum operation of the turbine in varying wind conditions and to prevent electrical overload and over speed in high winds. Gears in the hub of the rotor allow the pitch to be varied. PITCH CONTROL ACTION Pitch control means that the blades can pivot upon their own longitudinal axis. The pitch control used for speed control, optimization of power production and to start and step the turbine. A control technique applied to the pitch angle is done by comparing the current active power of the engine with the value of active power at the rated engine speed (active power reference). Control of the pitch angle in this case is done with a PI controller controls. However, in order to have a realistic response to the control system of the pitch angle, the actuator uses the time constant T, an integrator and limiters so as the pitch angle to be from 0° to 30° with a rate of change (± 10° per sec). Figure 7: Basic diagram for pitch angle control Figure 8: pitch controller From the figure 8 at the right, the reference pitch angle is compared with the actual pitch angle b and then the error is corrected by the actuator. The reference pitch angle, which comes from the PI controller, goes through a limiter. Restrictions on limits are very important to maintain the pitch angle in real terms. Also, limiting the rate of change is very important especially during faults in the network. The importance is due to the fact that the controller decides how quickly it can reduce the aerodynamic energy to avoid acceleration during errors.
9.
International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 77 SIMULINK MODEL FOR PITCH CONTROL MODEL DESCRIPTION In our project we used MTALAB tools for simulation of our model. Our model is shown in the figure 9. The main block parameter used in our model is described below, Wind Turbine This block implements a variable pitch wind turbine model. The performance coefficient Cp of the turbine is the mechanical output power of the turbine divided by wind power and a function of wind speed, rotational speed, and pitch angle (beta). Cp reaches its maximum value at zero beta. The first input is the generator speed in per unit of the generator base speed. For a synchronous or asynchronous generator, the base speed is the synchronous speed. For a permanent-magnet generator, the base speed is defined as the speed producing nominal voltage at no load. The second input is the blade pitch angle (beta) in degrees. The third input is the wind speed in m/s. The output is the torque applied to the generator shaft in per unit of the generator ratings.
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International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 78 Asynchronous Machine We used a three-phase asynchronous machine of squirrel cage type modeled in a selectable dq reference frame (rotor, stator, or synchronous). Stator and rotor windings are connected in wye to an internal neutral point. The Machine rating is 5HP, 460 V, 60 Hz, 1750 rpm. RESULT AND ANALYSIS The simulation results obtained from the MATLAB/SIMULINK wind turbine model are given below (for various wind speed) Wind is very much turbulent in nature. So it is very much essential to control the rotor speed for a desired output power. When a generator reaches its rated power, the turbines must limit the magnitude of mechanical power delivered to the generator. For example a generator in typical wind turbines reaches its rated power at wind speeds of 15 m/s to 25 m/s, and thus, must decrease in energy collection at higher wind speeds. Here this energy collection control is achieved by pitch angle control. The pitch angle is controlled to keep the generator at the rated power by reducing the angle of the blades. By actuating the blade angle to be at the limit of the stalling, fast torque changes in the wind speed can be tolerated. A control technique applied to the pitch angle is done by comparing the current active power of the engine with the value of active power at the rated engine speed. Control of the pitch angle in this case is done with a PI controller controls. The SIMULATION result for different wind speed is shown below Fig: variation of pitch angle, rotor speed and output power for a wind speed of 10 m/s
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International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 79 Fig: variation of pitch angle, rotor speed and output power for a wind speed of 16 m/s From the above result it is seen that the output power is constant for different wind speed. The PI controller changes the pitch angle of the blade to keep the output power of the system at a constant value. CONCLUSION Thus by using pitch controller the output power has been limited at variable wind speed and wind turbine can operate safely. The results are taken at the values which are inherent in the simulink blocks and from the simulink results it is clear that as the wind speed changes then there is a corresponding change in the values of rotor speed ,PI controller, Pitch angle to maintain the output at some constant value. ACKNOWLEDGEMENT We are acknowledge to the TEQIP grant scheme of JIS College of Engineering. REFERENCES [1] Torrey, D.; Childs S.; de Haan, S., “A Variable- Speed Wind Turbine Based on a Direct- Drive Variable-Reluctance Generator, Proceedings of Wind power”, 94, MN, May 10-13, 1994, Washington D.C.: American Wind Energy Association; pp. 513-522. [2] “World Wind Energy Report 2010,” in Proc. 10th World Wind Energy Conference. Cairo, Egypt: World Wind Energy Association, Nov. 2011. [3] R. Wiser and M. Bolinger, “2010 Wind Technologies Market Report,” US Department of Energy, Tech. Rep., 2011.
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International Journal of
Electrical Engineering and Technology (IJEET), ISSN 0976 – 6545(Print), ISSN 0976 – 6553(Online) Volume 5, Issue 3, March (2014), pp. 69-80 © IAEME 80 [4] http://en.wikipedia.org/. [5] Ackermann, T. (ed). (2005) Wind Power in Power Systems. Wiley, England. [6] Gopal, M. (2010). Digital Control and State Variable Methods. New Delhi: Tata McGraw Hill Eduction Private Limited. [7] The Mathworks Inc.: http://www.mathworks.com. [8] http://www.epd.gov.hk/eia/register/report/eiareport/eia_1242006/html/EIA_Report/. [9] El-Tous, Y. (2008). Pitch Angle Control of Variable Speed Wind Turbine. American J. of Engineering and Applied Sciences 1 (2): 118-120, 3. [10] L. Y. Pao and K. E. Johnson, “A Tutorial on the Dynamics and Control of Wind Turbines and Wind Farms,” Proc. Amer. Ctrl. Conf., June 2009. [11] Bianchi, F. D., Battista, H. D. & Mantz, R. J. (2007), Wind Turbine Control Systems - Principles, Modeling and Gain Scheduling Design, Advances in Industrial Control, springer. [12] R.Saravanan and K.K.Padmanabhan, “Design and Techno- Economic Evaluation of Small Wind Turbine Usage in Indian Power Systems”, International Journal of Mechanical Engineering & Technology (IJMET), Volume 3, Issue 1, 2012, pp. 127 - 141, ISSN Print: 0976 – 6340, ISSN Online: 0976 – 6359. [13] Haider M. Husen, Laith O. Maheemed and Prof. D.S. Chavan, “Enhancement of Power Quality in Grid-Connected Doubly Fed Wind Turbines Induction Generator”, International Journal of Electrical Engineering & Technology (IJEET), Volume 3, Issue 1, 2012, pp. 182 - 196, ISSN Print: 0976-6545, ISSN Online: 0976-6553. [14] Avneet Hira, Vandana Kansal, TK Jindal, Jimmy Kansal and Ashwagosha Ganju, “Harnessing Wind Energy in Cryospheric Regions”, International Journal of Electrical Engineering & Technology (IJEET), Volume 3, Issue 2, 2012, pp. 313 - 319, ISSN Print: 0976-6545, ISSN Online: 0976-6553.
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