Innovative Frequency Regulation Strategies for DFIG based Wind Turbine Systems

The working of a power system is continuously threatened by abnormal and fault conditions. To control frequency fluctuations caused by various load conditions and environmental conditions in a wind-solar hybrid microgrid (MG), a novel frequency regulation method is presented for the successful operation of a wind turbine power system. Where frequency is regulated by using a traditional PI controller, and the conventional controller is integrated with an innovative fuzzy logic controller to optimize the frequency regulation. Frequency response characteristics of traditional WTs at different loads and different wind speeds are analyzed and compared. It is pointed out that the system’s frequency stability will deteriorate with the increase of wind power speed. The simulation result shows that frequency regulation is attained within the required time. Moreover, the proposed method can be implemented without any additional modifications to real-time applications.