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
出处
《电工技术学报》
EI
CSCD
北大核心
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
关键词
电压型PWM逆变器
IGBT
误差分析
误差补偿
Voltage source PWM inverter IGBT Dead time Switching delay time Forward voltage drop
