电压型PWM逆变器输出误差分析及其补偿  

The Analysis and Compensation of Output Error for Voltage Source PWM Inverter

作　　者：陈硕[1] 薛昭武[1] 

机构地区：[1]福州大学机械工程系,350002

出　　处：《电工技术学报》2001年第2期51-55,共5页Transactions of China Electrotechnical Society

基　　金：福州大学科技发展基金研究项目

摘　　要：由于死区时间和电力电子器件IGBT非理想特性的影响 ,PWM逆变器存在输出误差 ,使得众多的调速方案在低速运行时性能不佳或无法实现调速。本文详细分析死区时间和IGBT非理想特性对输出电压的影响 ,提出测量IGBT非理想特性方法和输出误差补偿法 ,并通过实验验证了误差补偿法的有效性。Because a PWM inverter has an output error due to the dead time and the non ideal characteristic of IGBT,a number of variable speed schemes cannot obtain a good performance or operate at low speed This paper analyzes the influence of the dead time and the non ideal characteristic on the output voltage in detail,and proposes a measurement of IGBT and a compensating algorithm for the inverter The validity of the proposed method has been verified by experimentation

关 键 词：电压型PWM逆变器 IGBT 误差分析 误差补偿 

分 类 号：TM464[电气工程—电器]