PWM变频器谐波及其抑制策略综述  

Summarize of Harmonics and Suppression Strategy for PWM Inverters

作　　者：唐丽娜[1] 倪帅[1] 

机构地区：[1]中国矿业大学信息与电气工程学院

出　　处：《变频器世界》2012年第10期41-44,47,共5页The World of Inverters

摘　　要：随着PWM变频器的广泛使用,它所带来的问题不可忽视。本文主要介绍了变频器使用过程中带来的共模电压和过电压问题。分别介绍了共模电压和过电压的产生机理,在此基础上介绍了过电压和共模电压的几种抑制策略,包括抑制过电压的几种滤波器以及共模电压滤波器和PWM调制策略的优化,并对这几种抑制策略进行了分析比较。With the widespread use of PWM inverter, we can＇t ignore the problems produced by it. This paper describes the common-mode voltage and over-voltage of the inverter. This paper introduces the common-voltage and over-voltage generation mechanism, on this basis, we introduce several suppression strategies about the common-voltage and the over-voltage, including several over-voltage filters and common-mode voltage filters and optimized PWM modulation strategy, analyze and compare these suppression strategies.

关 键 词：变频器 共模电压 过电压 抑制策略 

分 类 号：TN773[电子电信—电路与系统]