Vibration Reduction and Torque Improvement of Integral-slot SPM Machines Using PM Harmonic Injection  

作　　者：Jinghua Ji Deyou Liu Yu Zeng Tong Liu Wenxiang Zhao 

机构地区：[1]School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China

出　　处：《Chinese Journal of Electrical Engineering》2023年第4期41-53,共13页中国电气工程学报（英文）

基　　金：Supported by National Natural Science Foundation of China(52025073).

摘　　要：This study aimed to improve the vibration and torque of an integral-slot surface-mounted permanent magnet(SPM)machine by optimizing the shape of the harmonically injected permanent magnet(PM).First,the effect of the third harmonic injected into the sinusoidal PM shape on the electromagnetic performance of a 36-slot/12-pole SPM machine was investigated,including the torque performance and vibration response.It was found that the Sin+3rd harmonic-shaped PM had a contrary effect on the torque and vibration performance of the integral-slot machine,which improved the torque capability but worsened the vibration performance.Second,the response surface model and Barebones multi-objective particle swarm optimization algorithm based on a trade-off between the average torque and vibration were implemented to determine the optimal harmonic injection.Subsequently,the performances of the optimal Sin+3rd-shaped and eccentric PM machines were compared,showing the excellent torque and vibration performance of the adopted method.Finally,a prototype was manufactured and tested to verify the results of the theoretical analysis.

关 键 词：Integral-slot surface-mounted permanent magnet machine multi-objective optimization third harmonic TORQUE vibration 

分 类 号：TM3[电气工程—电机]