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电压型PWM逆变器输出误差分析及其补偿
引用本文:陈硕,薛昭武. 电压型PWM逆变器输出误差分析及其补偿[J]. 电工技术学报, 2001, 16(2): 51-55
作者姓名:陈硕  薛昭武
作者单位:福州大学机械工程系
基金项目: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。

关 键 词:电压型PWM逆变器  IGBT  死区时间  开关延迟时间  正向管压降
修稿时间:2000-11-13

The Analysis and Compensation of Output Error for Voltage Source PWM Inverter
Chen Shuo,Xue Zhaowu. The Analysis and Compensation of Output Error for Voltage Source PWM Inverter[J]. Transactions of China Electrotechnical Society, 2001, 16(2): 51-55
Authors:Chen Shuo  Xue Zhaowu
Affiliation:Fuzhou University 350002 China
Abstract: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
Keywords:Voltage source PWM inverter IGBT Dead time Switching delay time Forward voltage drop  
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