利用谐波注入法改善永磁同步电机的运动特性  

Using Harmonic Injection Method to Improve the Motion Characteristics of PMSM

作　　者：于慎波[1] 薛镜武 夏鹏澎 赵海宁[1] YU Shen-bo;XUE Jing-wu;XIA Peng-peng;ZHAO Hai-ning(School of Mechanical Engineering,Shenyang University of Technology,Liaoning Shenyang 110870,China)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870

出　　处：《机械设计与制造》2021年第11期79-82,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(51175350);沈阳市科技计划项目(F15-199-1-13)。

摘　　要：为了提高永磁同步电机的稳定性,减小转矩脉动,降低振动,采用多软件联合仿真,提出了一种基于多同步旋转坐标系的主动谐波注入法。该方法采用了解析法进行坐标变换,建立了谐波数学模型,完善了各阶次谐波下的谐波状态方程。利用PI控制器追踪高次谐波的电流和电压,实现了高次谐波的提取与注入。并通过转速环、电流反馈环和电压补偿环实现了转矩脉动和振动噪声的降低。In order to improve the stability of permanent magnet synchronous motor(PMSM),reduce torque ripple and vibration,using Multi-software co-simulation,an active harmonic injection method based on multi-simulator rotating coordinate system was proposed.It uses analytical method to transform coordinates,establishes harmonic mathematical model,and optimizes har⁃monic state equation with each order harmonic.Based on the modern control theory,PI controller is used to track the high-order harmonic currents and voltages to realize the extraction and injection of high-order harmonics.And the torque ripple and vibra⁃tion noise can be reduced by rotating speed loop,current feedback loop and voltage compensation loop.

关 键 词：永磁同步电机 控制策略 谐波注入 转矩脉动 振动噪声 联合仿真 

分 类 号：TH16[机械工程—机械制造及自动化] TM341[电气工程—电机]