Patent ID: 7808126

Claim:
A method of controlling the dynamic power factor or the reactive power of a wind farm having a plurality of wind turbines connected to a utility grid driven with a requested power factor or a requested reactive power, the output voltage of the electricity supplied by an individual wind turbine controlled to a specific voltage set point, comprising: storing the voltage set point in memory; measuring and comparing the wind farm power factor with the power factor requested for the utility grid, or measuring and comparing the wind farm reactive power with the reactive power requested for the utility grid; adjusting the ratio of the wind farm voltage to the utility grid voltage; regulating the output voltage of the individual wind turbines to correspond to the specific voltage set point, the regulating, comprising: comparing a measured voltage signal with the voltage set point, producing a deviation signal, wherein the deviation signal represents a deviation of a measured voltage signal from the voltage set point, establishing a modulation signal using the deviation signal, outputting the modulation signal to a plurality of inverter switches thereby controlling the output voltage, repeating the adjusting and regulating until the power factor of the electricity supplied by the wind farm corresponds to the requested power factor or the reactive power of the electricity supplied by the wind farm corresponds to the requested reactive power.