U型永磁电机齿槽转矩优化方法研究  

Research on cogging torque optimization method of U-type permanent magnet motor

作　　者：李杰文 张学义[1] 高霆 童拉念 马清芝 高艳红 王静 尹红彬[1] LI Jiewen;ZHANG Xueyi;GAO Ting;TONG Lanian;MA Qingzhi;GAO Yanhong;WANG Jing;YIN Hongbin(School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China;Shandong Tangjunouling Automobile Manufacturing Co. , Ltd. , Zibo 255000, China)

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255049 [2]山东唐骏欧铃汽车制造有限公司,山东淄博255000

出　　处：《重庆理工大学学报（自然科学）》2022年第2期107-114,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51875327);山东省自然科学基金项目(ZR2020QE155)。

摘　　要：针对齿槽转矩过大影响永磁同步电机稳定运行的问题,推导电机齿槽转矩表达式,研究主要影响因素,并提出利用转子表面开槽来削弱电机齿槽转矩的方法,以3相8极48槽U型内置式永磁同步电机为例,研究转子表面开槽的形状、偏移角度、宽度、深度等对电机气隙磁密谐波和齿槽转矩的影响规律,确定出最优开槽参数。优化后的开槽参数可有效降低内置式永磁同步电机齿槽转矩,削弱气隙磁密多次谐波,提高电机稳定性。In order to solve the problem that the cogging torque is too large to the stable operation of permanent magnet synchronous motor(PMSM),the cogging torque expression of PMSM is derived,the main influencing factors are studied,and the method of reducing the cogging torque of PMSM by slotting the rotor surface is put forward,taking the 3-phase 8-pole 48-slot U-type built-in permanent magnet synchronous motor as an example,the effects of the slot shape,offset angle,width and depth on the air gap flux density harmonics and cogging torque of the motor are studied,the optimal slotting parameters are determined.The results show that the slotted parameters can effectively reduce the cogging torque,weaken the air gap flux density multi-harmonic,and improve the stability of the motor.

关 键 词：齿槽转矩 内置式永磁同步电机 气隙磁密多次谐波 

分 类 号：TM351[电气工程—电机] TM359.9