摘要
针对电力系统中四种典型故障类型,基于对称分量法和同步坐标变换,分别建立了四种故障类型下DFIG电压、磁链的空间矢量模型,推导了DFIG的定、转子电流表达式。通过matlab仿真研究了DFIG在对称故障和不对称故障下的动态特性,实验结果发现由于A相接地故障时,产生不对称分量,使得电压、磁链等发生了二倍工频振荡。
In this paper, the voltage characteristic, flux linkage characteristic and current characteristic of DFIG under grid fault had been studied. With the simulation platform of matlab, the dynamic characteristics of DFIG had been verified.
出处
《贵州电力技术》
2014年第9期54-57,67,共5页
Guizhou Electric Power Technology
