Research on Voltage Fluctuation of Power System Considering Wind Power Connection

In this paper, stochastic fluctuation of wind power output is taken into account to study its influence on the voltage fluctuation of the power grid. Firstly, the wind speed variation type is given, and a time-varying power injection wind farm output model is proposed to analyze the influence of random wind power fluctuations on dynamic voltage fluctuations of the power grid. Through the simulation analysis of the four-machine and two-area system with a wind farm, the main influencing factors and characteristics of the steady and dynamic voltage fluctuation of the power grid after the wind farm is connected are summarized, to provide a reference for the safe operation of the system after the wind farm is connected to the grid.