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Grid Compliance and Wind turbines in weak and Island grids –

Grid Compliance and Wind turbines in weak and Island grids –. Søren Jes Plagborg Vestas – Northern Europe February 2006. Information contained in the following expresses general views and shall not be construed as an expression of the policies or views of Vestas.

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Grid Compliance and Wind turbines in weak and Island grids –

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  1. Grid Compliance and Wind turbines in weak and Island grids– Søren Jes Plagborg Vestas – Northern Europe February 2006

  2. Information contained in the following expresses general views and shall not be construed as an expression of the policies or views of Vestas. • Information contained in the following shall not be construed as detailed description of the properties or functioning of wind turbines manufactured by Vestas. • Information contained in the following should merely be viewed as a contribution to the debate on the development of grid code requirements and the utilization of the potential of wind turbines in securing grid stability.

  3. Content Introduction • Why?? • History • Content Technical Requirements • Power • Voltage • SCADA Example of Grid code Trends • Turbine / Scada

  4. Current listing of new Wind Grid codes Where ? Everywhere

  5. V82-1.65 MW, Why New ’Wind’ Grid codes?? • At national level. -no longer a minor energy source. • The national grid stability will become dependant on Wind. • Several regions throughout Europe are now exporting wind power to the transmission grid 60- 130 kV • Unforseen trip of a >50 MW sized windfarm can significantly affect the balance on the transmission level (60-130 kV).

  6. Why new grid codes??Wind in Denmark- Jutland January 2003

  7. What does it say..? • Some variations throughout the world. • However, the main focus areas are….: • Active power control • Reactive power control • Frequency control • Voltage fluctuations • Voltage - fault ride through • Extensive increase in SCADA interface / demands • Turbine Modelling data - PSS/E • Flicker and Harmonic data / Power Quality data sheet V80-2.0 MW,

  8. A Solution for Farm control : VestasOnline -SCADA System Active power control Gradient power control

  9. An example of Grid Code RequirementsActive Power Control • Ramp up function • MW Curtailment set-point

  10. An Example of Grid Code RequirementsReactive Power Control Increased Power factor range at interconnection point:

  11. e to 0.95 capacitive at rated wind farm output at PCC (Point of Common Connection) An Example of Grid Code RequirementsVoltage Control

  12. Why Fault Ride Through..?? • Because it is expected from a primary energy source -like Wind, Oil and Gas

  13. Fault Ride Through -some examples…

  14. An Example of Grid Code RequirementsVoltage disturbance Voltage / Fault ride through Capabilities

  15. Challenging Scope of Supply -Today! -A few years ago…! Wind Farm – Turbines Utility Network Sub- Station The New Grid Codes causes the need of solutions at the Sub Station and results in new challenges for defining ”Scope of Supply”

  16. G G G G G G G G Trends… PCC To Interconnection Dynamic Compensation unit, SVC/STATCOM Dynamic Compensation module Remote dispatch center Static cap. banks Substation Step-Up Transformers 66/22 kV  RCM / Sub station Switchgear Electrical infrastructure Block controller WTG No. 1…9 WTG No. 10…18 WTG No. 19…27 WTG No. 28…35 Project specific, commercial/competitive edge Critical for performance / compliance with grid codes

  17. -Summary… • Current Trends = Tomorrows requirements • SCADA is a required and vital part of the total solution. • Extensive increase of control features between Wind Farm and the Electrical Utility SCADA Systems • Cost issue: small projects versus large projects – turbine capabilities versus substation solutions

  18. Wind, Oil and Gas V66-1.75 MW

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