基于SHEPWM的异步电机控制技术研究  

Research on Control Technology of Asynchronous Motor Based on SHEPWM

作　　者：李守蓉 杨伟 王志强 柴媛 LI Shou-rong;YANG Wei;WANG Zhi-qiang;CHAI Yuan(CRRC Xi'an Yonge Electric Co., Ltd., Xi'an 710016, China)

机构地区：[1]西安中车永电电气有限公司

出　　处：《电力电子技术》2019年第4期115-117,共3页Power Electronics

摘　　要：对基于特定谐波消除脉宽调制(SHEPWM)的大功率异步牵引电机矢量控制技术进行了研究,提出了系统控制策略。研究了SHEPWM开关角计算方法和不同开关角之间切换角选取,研究了不同脉宽调制(PWM)模式间切换方法。同时给出了电流控制和调制率及电压矢量角计算方法。经过仿真和实验验证,该控制策略满足系统实时性的要求,且动态切换过程平滑。The vector control technology of asynchronous motor used in high power traction system based on selective harmonic elimination pulse width modulation (SHEPWM) is researched and the system control strategy is presented. The switching angle calculation, selection method of SHEPWM, and the switching method of different pulse width modulation (PWM) modes are studied.At the same time, the current control and modulation rate and voltage vector angle calculation method are given.After simulation and experiment verification , the control strategy meets the real-time requirement of system, and the dynamic switching process is smooth.

关 键 词：异步牵引电机 特定谐波消除脉宽调制 矢量控制 

分 类 号：TM343[电气工程—电机]