PWM供电对永磁同步电动机的性能影响及谐波抑制  

Influence of PWM on performance of permanent magnet synchronous motor and harmonic suppression

作　　者：高泽梅[1,2] 王淑红[1] 武潇[1] 黄振民[1] 

机构地区：[1]太原理工大学电气与动力工程学院,山西太原030024 [2]国电吕梁供电公司,山西吕梁033000

出　　处：《武汉大学学报（工学版）》2017年第3期395-400,共6页Engineering Journal of Wuhan University

基　　金：山西省自然科学基金(编号:2013011035-1)

摘　　要：针对PWM(Pulse Width Modulation)供电系统谐波含量大对电机性能影响较大的问题,提出一种基于Simplorer+Maxwell二维磁场瞬态场永磁同步电动机建模与联合仿真的方法,并基于仿真基础进行谐波补偿以减小电机的转矩脉动.借助Maxwell建立电机仿真模型,借助Simplorer建立电机控制模型,通过设置联合仿真接口实现了电磁场数值分析,并在数值分析基础上采用3次谐波注入法减小电机转矩脉动.经仿真分析证明了该联合仿真方案的可行性和系统模型的正确性以及3次谐波注入法的有效性,兼具仿真精度高、实时性等特点.Aiming at that the pulse width modulation （PWM） power supply system contains a large amount of harmonic may have great impact on motor performance, a co-simulation method--Simplorer＋Maxwell 2D for permanent magnet synchronous motor is proposed; and harmonic injection method is adopted to reduce the motor torque ripple based on the simulation results. A motor simulation model is built with Maxwell; and a control system is established with Simplorer, by setting the co-simulation interface to achieve electromagnetic field numerical analysis; and then third harmonic injection method is used to reduce motor torque ripple. The simulation results prove the correctness and feasibility of the system model and effectiveness of harmonic injection method, combining with the characteristics o{ high precision and real-time.

关 键 词：永磁同步电动机 联合仿真 3次谐波注入法 转矩脉动 

分 类 号：TM301[电气工程—电机]