Research on frequency regulation of power system containing wind farm

With the development of wind power, the inherent characteristics of randomness and uncertainty of wind energy would have an impressive effect on power system frequency, it is necessary for wind farm to participate in frequency regulating in order to share the burden with the frequency-regulating power plants, and to improve power system stability. Two operation modes of the wind farm are proposed in this paper, one mode is optimal wind power capture when the wind is abduant, the other is standby wind power storage mode when the wind speed is lower. The paper proposes a control strategy of frequency to control active power of wind turbines by adjusting the wind energy utilization coefficient in order to improve frequency stability on power system. An example is studied. The research shows that the proposed method can enhance the frequency stability of power system.