交替极永磁电机转矩脉动抑制控制策略  

Control Strategy of Torque Ripple Suppression for Consequent-pole Permanent Magnet Machines

作　　者：聂杰 王凯[1] 郭玲玲 李烽 朱姝姝[1] 刘闯[1] 陈万庆 NIE Jie;WANG Kai;GUO Lingling;LI Feng;ZHU Shushu;LIU Chuang;CHEN Wanqing(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu Province,China;Jingji Technology Co.,Ltd.,Jiaxing 314000,Zhejiang Province,China)

机构地区：[1]南京航空航天大学自动化学院,江苏省南京市210016 [2]精基科技有限公司,浙江省嘉兴市314000

出　　处：《中国电机工程学报》2025年第3期1118-1126,I0026,共10页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家重点研发计划项目(2022YFB3403100)。

摘　　要：交替极永磁(consequent pole permanent magnet,CPPM)电机每对极下的气隙磁密不对称,在特定极槽配合下其反电动势(electromotive force,EMF)中存在2、4次等偶次谐波分量,引起额外的转矩脉动,降低转矩输出品质。为解决上述问题,提出一种注入多谐波电流产生的转矩补偿原有转矩脉动的控制策略。推导适用于任意次谐波磁链产生的转矩脉动通用解析模型;并基于此模型,给出利用谐波电流抑制转矩脉动的理论依据;提出在同步旋转坐标系下注入多次谐波电流的方法,抑制由2、4、5、7、11、13次谐波反电势引起的3、6、12次转矩脉动;并利用准-比例谐振控制器实现谐波电流的精确跟踪。最后,以一台三相9槽10极交替极永磁电机为例,通过不同工况下的转矩脉动抑制实验,验证所提控制策略的有效性。The air gap flux density of the consequent pole permanent magnet(CPPM)machine is asymmetric under each pair of poles.Under the specific pole-slot coordination,the back electromotive force(EMF)will further appear 2nd and 4th even harmonics,which will cause additional torque ripple and adversely affect the output performance.In this paper,a torque ripple suppression strategy based on multi-harmonic current injection is proposed.A general analytical model of torque ripple suitable for any order of back-EMF harmonics is derived.Based on this model,the theoretical basis for utilizing harmonic currents to suppress torque pulsations is given.A methodology is introduced to inject multiple harmonic currents in the synchronous rotating coordinate system to mitigate the 3rd,6th,and 12th harmonic torque pulsations induced by 2nd,4th,5th,7th,11th,and 13th harmonic back EMF.Furthermore,a quasi-proportional resonant controller(PRC)is employed to ensure controlled harmonic current tracking.The effectiveness of the proposed method is verified through torque ripple suppression experiments of 9/10 CPPM machine under different operating conditions.

关 键 词：交替极转子 永磁同步电机(PMSM) 反电动势(EMF)谐波 谐波电流注入 转矩脉动抑制 

分 类 号：TM351[电气工程—电机]