Power Filtering Based Wind Farm Power Fluctuation Smoothing Control Strategy

Abstract

The output active power of the wind-power generator fluctuates with the change of the wind speed, which affects the output power quality of the wind farm. In order to reduce output power fluctuation of wind farm, based on analyzing of Wind Power Fluctuation Spectrum, an active power smoothing control strategy had been proposed through the pitch angle control and speed control of the generator. The simulation results show that the proposed control strategy can effectively reduce the output active power fluctuations of wind farm.