摘要
在分析SVPWM逆变器死区补偿的基础上,针对负载电流产生畸变,电流中含有谐波,导致不能精确判断电流的极性问题,提出了一种电流极性检测的方法。与常用的利用电流矢量角来判断三相电流极性的方法相比,不需要过多的计算,方法更加简单且易于实现。最后通过仿真证明此方法的正确性。
The dead time compensation of SVPWM inverter was analyzed.A method for current polarity detection was proposed to solve the problem that the current polarity cannot be accurately judged because the current contains harmonics distorted.Compared with the compensation method that using current vector angle to judge the polarity of three phase current,this method was more simple and easy to implement and in-need of less calculation.The correctness of this method was proved by simulation.
作者
张展
高照阳
ZHANG Zhan GAO Zhaoyang(School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, Chin)
出处
《大连工业大学学报》
CAS
北大核心
2016年第5期386-390,共5页
Journal of Dalian Polytechnic University
关键词
逆变器
补偿
极性
inverter
compensation
polarity
