Research on Operation Control Technology of Microgrid Based on Wind Power Generation

Abstract

Wind power generation is one of the important types of distributed generation in microgrid. The random variation of wind speed will affect the stable operation of microgrid. In this paper, the mathematical model of the asynchronous wind turbine is established, and the power characteristics of the wind turbine are analyzed. On this basis, the effect of asynchronous wind turbine on the operation control of microgrid during the wind speed disturbance is analyzed. Furthermore, the microgrid operation control technology based on energy storage system is proposed, including the power circuit and its control strategies. Then a simulation model of microgrid including wind power generation is built by Matlab/Simulink, and the simulation verification under typical operating scenarios such as gust disturbance is carried out. The results show that the energy storage system can effectively buffer the power fluctuation of the asynchronous wind turbine, restrain system voltage change, and improve the stability of microgrid.