MODELLING OF WIND FARM CONTROLLERS

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MODELLING OF WIND FARM CONTROLLERS

• Poul Sørensen, Risø National Laboratory

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Simulation model - wind farm power control
Wind turbine controller
Wind farm controller
Operator
Wind turbine controller
Wind turbine controller
?
Speed optimum
Ramp rate settings
Speed control
Pbalance P?
Power reference setting
Dispatch control
Power control
Droop settings Deadband settings
PCC
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Isolation of wind turbines in local grid
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Active stall wind farm motor load (case B)
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Conclusions

• Wind farms with power control can support
  secondary and primary control in grid frequency
  and voltage.
• Dynamic simulation models must contain
• wind turbine main mechanical and electrical
  components
• wind turibne (active / reactive) power control
• wind farm power control (secondary and primary)
• Simulation models for controlled wind farms are
  useful to study wind farm power system control
  capability with different grid and wind farm
  scenarios, particularly island operation and
  black start capability.