基于PSCAD的并网风电场电压稳定性分析研究

我国风电场多建在薄弱电网,一定规模的风电场接入局部电网后势必带来电压稳定问题,影响电力系统稳定.针对以笼型异步电机作为发电机的风电场并入薄弱电网的电压稳定性问题进行分析研究,建立了风电系统模型,并采用PSCAD进行仿真,分别从静态和动态角度分析影响风电场电压稳定的不同因素,并寻求改善风电场暂态稳定性的方法及采取的措施.

Study of voltage stability for grids interconnected by wind farms by using PSCAD

Since the wind farm in China is usually built in the places where the grid is relatively weak,the interconnection of the wind power is bound to cause voltage instability in the grid.The voltage problem caused by interconnection of the wind farm using the cage asynchronous generator to a weak grid is studied,and the wind power system model is established.Simulation was conducted by using PSCAD,and factors influencing voltage stability of the local grid interconnected by the wind farm are analyzed in the aspects of static-state and dynamic-state.