SVC动态特性对风电场接入电网电压稳定性的影响

Effect of Dynamic Characteristics on Voltage Stability of Grid Connected Wind Farm

以多数风场配置的无源无功补偿装置为例,构建TCR/MCR型SVC仿真控制模型,研究它们在风场动稳和暂稳期间的响应特性,分析它们对风电运行电压稳定的改善作用仿真结果表明TCR/MCR型SVC对于提高风电场电压稳定性均具有明显的作用,但前者能更快地跟踪电压波动,快速调整无功输出,更好地抑制了电压波动.

Taking the configuration of the passive most wind wattless power compensation device for example and constructing of the TCR/MCR SVC simulation control model, the wind dynamic stability and transient stability response characteristics during the analysis of simulation results are studied and the stability of them on the operating voltage of wind power IS improved. The results show that TCR/MCR SVC has an obvious effect to improve the voltage stability the wind farm, but the former can quickly track the voltage fluctuation, quickly adjust wattless power output and suppress the voltage fluctuation better.