Wind Farm Reactive Power Allocation With Minimal Active Power Loss

The patent applies local quality by determining sensitivity coefficients for each individual wind turbine, which characterize how reactive power changes with active power for each specific turbine. This allows the control system to identify which turbines have lower sensitivity (and thus can increase reactive power with minimal active power loss) versus those with higher sensitivity. The reactive power increase is then distributed non-uniformly across turbines based on their individual characteristics, optimizing the trade-off between reactive power supply and active power production at the local level.

The patent changes the control parameters by introducing sensitivity coefficients that characterize the relationship between active and reactive power for each turbine. Instead of uniformly reducing active power setpoints, the system uses these sensitivity parameters to determine optimal reactive power distribution. The control approach changes from a simple setpoint reduction to a sophisticated distribution strategy that considers individual turbine characteristics, thereby minimizing energy production loss while meeting reactive power requirements.