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- 2. Agenda Part I - Overview of Wind Turbines Part II - Turbines What are the types of turbines? What composes a turbine? How are they related? Part III – Basic Troubleshooting Summary/Questions http://www.tonygreen.name © Tony Green 2011
- 3. Housekeeping matters: Cell phone in Vibrate Mode/Off Location of the heads (Bathrooms, water) Questions before we begin? http://www.tonygreen.name © Tony Green 2011
- 4. Objectives of today’s presentation: Understanding of what a wind turbine is and how it operates (parts, block diagram) To provide a guide to basic troubleshooting http://www.tonygreen.name © Tony Green 2011
- 5. Part I -Overview Why is understanding the operation of a wind turbine important? Price of oil escalating with Middle East sources/global warming CO2 emission Clean/Renewable energy sources needed, wind power and solar in the mix Must be reliable to keep pricing in line with conventional sources (and the lights on!), critical to keep running and if there is fault to fix it promptly http://www.tonygreen.name © Tony Green 2011
- 6. Part I – Overview A Wind Turbine is machine that produces electrical power from wind Source: Fundamentals of Wind Energy Alaska Wind Energy Applications Training SymposiumBethel, Alaska E. Ian Baring-Gould National Renewable Energy Laboratory http://www.tonygreen.name © Tony Green 2011
- 7. Part I – Overview Front and Side view of a turbine Source: RET International Presentation http://www.tonygreen.name © Tony Green 2011
- 8. Part I – Overview How is energy generated? Source: Creado and Sanyal Wind Energy Overview Presentation via slideshare.net. http://www.tonygreen.name © Tony Green 2011
- 13. after which power can be applied to grid http://www.tonygreen.name © Tony Green 2011
- 14. Another view of the source of wind power. Source: Why Wind Power work for Michigan “A Brief Primer on How Wind Turbines Make Electricity” by Christopher Schilling, Ph.D. Saginaw Valley State University http://www.tonygreen.name © Tony Green 2011
- 16. Part I – Overview -Energy Conversion Input > Wind Kinetic Energy Pressure Differential - blades are an airfoil DP provides lift/rotational motion Mechanical Energy(Rotary motion) gear box as speed is increaser Generator Output – mechanical to electrical Output > electricity fed to grid http://www.tonygreen.name © Tony Green 2011
- 17. Question for thought….. How do we track an increase in wind speed to increase power output? Answer Wind speed up - blades turn faster – shaft spins faster – gears rotate faster – generator to produce higher output voltage – increase power http://www.tonygreen.name © Tony Green 2011
- 21. Part II – Turbines There are two types: Horizontal (HAWT) and Vertical (VAHT) Source : FUNDAMENTALS, INTRODUCTION TOWIND ENERGY by Ken StarcherAlternative Energy Institute West Texas A&M University March 2007 http://www.tonygreen.name © Tony Green 2011
- 22. Part II – Turbines (Internals) Source: Hawaii Electric Company Presentation http://www.tonygreen.name © Tony Green 2011
- 23. Part II – Turbines (Blades) Photo on left courtesy of author from AWEA 2009 convention and exposition in Chicago, Illinois Photo on the right courtesy of dreamstime.com http://www.tonygreen.name © Tony Green 2011 Composition of Blades – two or three made of composite material (Fiber and Resin)
- 24. Composition of Tower – steel Part II – Turbines Composition of Tower – Steel Source : Matt Garran’s “Anatomy of a Wind Turbine” AWEA 2009 presentation http://www.tonygreen.name © Tony Green 2011
- 25. Question for thought Could someone describe the operation of a simple turbine? Answer Wind – blades - shaft – gears – generator – inverter – transformer - consumption http://www.tonygreen.name © Tony Green 2011
- 26. Part III – Troubleshooting What could possibly go wrong? http://www.tonygreen.name © Tony Green 20111
- 27. Troubleshooting - Fault I http://www.tonygreen.name © Tony Green 2011 Turbine slowing down with load, hard for generator to turn, more torque must be generated.
- 29. Troubleshooting – Fault III http://www.tonygreen.name © Tony Green 2011 Loss of output, blade not turning, no AC Power out.
- 31. To check what is in path? Shaft, gears, generator, load. Check shaft spinning, if spin being input to generator then check output o.k., check if load connected to power http://www.tonygreen.name © Tony Green 2011
- 34. To troubleshoot it is key to under parts, their operation and relation to each otherhttp://www.tonygreen.name © Tony Green 2011
