基于载波的五相永磁容错电机SVPWM算法  

Carrier-based SVPWM Techniques for Five-phase Fault-tolerant Permanent Magnet Motor

作　　者：谢莹[1] 刘国海[1] 周华伟[1] 赵万祥[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《微电机》2015年第3期53-57,66,共6页Micromotors

基　　金：国家自然科学基金(61273154);高等学校博士学科点专项科研基金(20123227110012);江苏大学高级专业人才科研启动基金(12JDG109)

摘　　要：为避免五相永磁容错电机空间矢量脉宽调制(SVPWM)推导及实现的复杂性,分析基于载波的脉宽调制(CPWM)和SVPWM算法的原理,研究SVPWM算法中两种不同零电压矢量作用时间的分配机制,提出一种零序电压谐波注入策略,实现等效于SVPWM的CPWM算法。该零序电压谐波由每个PWM周期内电机最大和最小相电压构成。理论分析表明该算法与传统SVPWM等效且实现简单。仿真和实验结果表明该算法达到了SVPWM的控制效果。To avoid complex deduction and realization of space vector pulse width modulation （ SVPWM ） for five-phase fault-tolerant permanent magnet motor drive system, a zero sequence voltage harmonic strategy was proposed to acquire carrier-based pulse width modulation （CPWM） algorithm which was equivalent to SVPWM algorithm, by analyzing the principle of CPWM and SVPWM algorithm, and by studying the distribution mechanism of the two kinds of zero voltage vectors＇ operation time. The zero sequence voltage harmonic is composed of the maximum and minimum motor phase voltage in each PWM cycle. Theoretical analysis shows that the proposed algorithm is equivalent to SVPWM and simple to implement. Simulation and experimental results demonstrate that the proposed algorithm has the same control effect of the SVPWM technique.

关 键 词：载波脉宽调制 空间矢量脉宽调制 零电压矢量 零序电压谐波 

分 类 号：TM351[电气工程—电机]