摘要
脉宽调制(pulse width modulation,PWM)技术是电力电子变换器中最常用的控制技术之一,但不可避免地会产生共模电压。共模电压及其感应产生的轴电压、轴承电流等会严重危害电机甚至整个系统的安全运行,因此必须从源头上对它进行有效地抑制。首先分析共模电压的产生及作用于电机的基本原理,随后分别总结空间矢量PWM和载波PWM两种调制策略下进行共模电压抑制的控制自由度及相应控制方法,并对不同方法的性能进行对比,最后对其后续的发展方向进行展望。
Pulse width modulation(PWM)technology is one of the most commonly used control technologies in power electronic converters,which will inevitably generate the common-mode voltage(CMV).CMV as well as its induced shaft voltage and bearing current will seriously harm the safe operation of motors and even the whole system,so it is necessary to suppress the CMV from the source.In this paper,the basic principle of CMV generation and action on the motor is analyzed firstly.Then,different control degrees of freedom for CMV reduction under space vector PWM and carrier-based PWM are reviewed and the performances are compared.Finally,future development is discussed.
作者
徐晓娜
王奎
郑泽东
李永东
XU Xiaona;WANG Kui;ZHENG Zedong;LI Yongdong(Huairou Laboratory,Huairou District,Beijing 101400,China;State Key Laboratory of Control and Simulation of Power System and Generation Equipment(Department of Electrical Engineering,Tsinghua University),Haidian District,Beijing 100084,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2023年第22期8833-8849,共17页
Proceedings of the CSEE
基金
北京市自然科学基金项目(3212029)
台达电力电子科教发展计划(DREG2021001)。
关键词
共模电压抑制
脉宽调制技术
电力电子变换器
common-mode voltage reduction
pulse width modulation(PWM)
power electronic converter
