Wind Farm Reactive Power Coordination Scheme Using IEC 61850, by McGill and OPAL-RT

1. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
1
Shijia Li
MEng. Candidate, Department of ECE, McGill University
Supervisor: Prof. Geza Joos
Email: shijia.li@mail.mcgill.ca
Wind Farm Reactive Power Coordination Scheme
Using IEC 61850

2. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Outline
IEC 61850 and GOOSE messaging
Case study – Wind farm controller
 Configuration
 Tools
 Results
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3. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
IEC 61850
Overview & Benefits
 Substation Automation Systems (SAS)
 Defines the communication between
intelligent electronic devices (IEDs).
 Benefits
 Multi-vendor interoperability
 Low cost (installation and commissioning)
 Free configuration
Source: Special report IEC 61850—ABB Group 3

4. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
GOOSE Message
 GOOSE message
 Time-critical activities
communication between IEDs
 Multicasting
 Publisher/subscriber mechanism
Source: IEC 61850-7-1
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5. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Publisher/Subscriber
 SCL file
 Substation Configuration Language
 IED configurations and communications
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OPAL-RT GOOSE message blocks

6. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Outline
IEC 61850 and GOOSE messaging
Case study – Wind farm controller
 Configuration
 Tools
 Results
6

7. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
System Configuration
 Centralized wind farm control
 Utility grid code:E.12-01
 PCC voltage (±6%)
 Implement IEC 61850 protocol
 Communication between WTG and wind
farm controller
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System configuration

8. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Wind Farm Reactive
Power Coordination
 Centralized wind farm control
 Voltage regulation at PCC
 Q dispatch based on reactive power
capability for each WTG
 Send/receive information using IEC
61850 GOOSE
 Q set points for each WTG
 Q capability from each WTG
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Wind farm reactive power coordination scheme

9. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Tools
 Hardware
 OPAL-RT simulator
 Network switch, cables
 Laptop
 Software
 Modeling
• Matlab Simulink, RT-LAB
 SCL file configuration
• ICD designer, XML marker
 Network protocol analyzer
• Wireshark
Real-time simulation setup for wind farm reactive power coordination scheme
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10. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Real-Time Simulation Model
Network
Console
WTG1
WTG2
WTG3
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Console
WTG1
WTG2
WTG3
Network

11. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Troubleshooting
 Wireshark
 Packet analyzer
 Used to capture and analyze
GOOSE packets
 Decoding
 Destination address
 Data set
 Data attribute
 Data value
Data set
Data
attributes
and values
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12. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Simulation Results
100 200 300 400 500 600
-0.4
-0.3
-0.2
100 200 300 400 500 600
-0.4
-0.3
-0.2
100 200 300 400 500 600
-0.4
-0.3
-0.2
Time (s)ReactivepoweratWTG(pu)
WTG 1
WTG 2
WTG 3
 Control mode
 Unity power factor
 Reactive power coordination
100 200 300 400 500 600
1
1.05
1.1
Time (s)
RMSvoltageatPCC(pu)
Unity Power Factor
Voltage Control
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RMS voltage at PCC (pu)
Reactive power at WTG (pu)

13. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Conclusion and Future work
 Conclusion
 OPAL-RT simulators allow for the testing of IEC 61850 GOOSE
messaging.
 Wind farm control strategy successfully implemented
employing IEC 61850 GOOSE messaging.
 Future work
 Agent-based decentralized controller
 Other distributed energy resources
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14. The 7th International Conference
on Real-Time Simulation Technologies
Montreal | 9-12 June, 2014
Q & A
Thank you!
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