双馈风力发电机低电压穿越研究

摘要

探讨了双馈风力发电机并网后对电力系统暂态稳定性的影响.针对双馈感应电机(DFIG)风力发电系统进行低电压穿越(LVRT)电路设计,在转子侧接1个主动式Crowbar电路,在网侧加入能量存储装置.经过Matlab的仿真和DSZ-1实验平台的实验,说明该系统具有良好的低电压穿越能力.%This article discusses the transient stability of power system after interconnection of double fed induction generator(DFIG).According to the DFIG wind power system for low voltage across the circuit design, the active Crowbar and energy storage device are added into the system. Through Matlab/Simulation and experiment on platform of DSZ-1,it shows that the system has a good ability of low voltage ride through.