汽车悬架用 SPMSM 转矩脉动谐波畸变率协同优化

微特电机 ›› 2026, Vol. 54 ›› Issue (6): 9-13.

汽车悬架用 SPMSM 转矩脉动谐波畸变率协同优化

刘淑芬¹,范泽涛¹,张志华²,夏　雨¹

1. 辽宁工业大学机械工程与自动化学院,锦州 121001; 2. 锦州汉拿电机有限公司,锦州 121200

出版日期:2026-06-26 发布日期:2026-06-28

Collaborative Optimization of Torque Ripple and THD for SPMSM Used in Automotive Suspension Systems

LIU Shufen¹,FAN Zetao¹,ZHANG Zhihua²,XIA Yu¹

1. School of Mechanical Engineering and Automation,Liaoning University of Technology,Jinzhou 121001,China;
2. Jinzhou Halla Electric Motor Co. ,Ltd. ,Jinzhou 121200,China

Online:2026-06-26 Published:2026-06-28

摘要/Abstract

摘要： 为降低汽车悬架用表贴式永磁同步电机( surface-mounted permanent magnet synchronous motor,SPMSM)的转矩脉动与反电势谐波畸变率( total harmonic distortion,THD) ,本文设计了一台 10 极 12 槽结构的表贴式永磁同步电机。以增大电磁转矩、降低转矩脉动与反电势 THD 为优化目标,采用田口法将极弧系数、磁钢偏心距、齿宽、槽深和气隙长度作为关键优化因素,通过建立正交实验对各参数进行优化。有限元仿真结果表明,优化后电磁转矩由9. 34 N · m 增大为9. 63 N · m,提升了 3. 10%,转矩脉动由 2. 40%减小为 2. 23%,降低了 7. 08%,反电势 THD 由 8. 83%减小为 6. 97%,降低了 16. 33%。验证了田口法在汽车悬架用表贴式永磁同步电机多目标协同优化中的有效性,为同类电机设计提供参考。

关键词: 汽车悬架, 表贴式永磁同步电机, 田口法, 多目标优化, 转矩脉动, 反电势谐波畸变率

Abstract: To reduce the torque ripple and back electromotive force total harmonic distortion ( THD) of a surfacemounted permanent magnet synchronous motor ( SPMSM) used in automotive suspension systems, a 10 - pole 12 - slot SPMSM is designed. With the optimization objectives of increasing electromagnetic torque, reducing torque ripple, and reducing back electromotive force THD, the Taguchi method is adopted, in which the pole arc coefficient, magnet eccentricity,tooth width,slot depth,and air gap length are taken as key optimization factors,and orthogonal experiments are
established to optimize each parameter. Finite element simulation results show that after optimization, the electromagnetic torque is increased from 9. 34 N · m to 9. 63 N · m,representing an improvement of 3. 10%;the torque ripple is reduced from 2. 40% to 2. 23%, a decrease of 7. 08%; and the back electromotive force THD is reduced from 8. 83% to 6. 97%, a decrease of 16. 33%. The effectiveness of the Taguchi method in multi-objective collaborative optimization of SPMSM for automotive suspension systems is verified,and a reference is provided for the design of similar motors.

Key words: automotive suspension, surface-mounted permanent magnet synchronous motor, Taguchi method, multiobjective optimization, torque ripple, back electromotive force total harmonic distortion

中图分类号:

TM351

刘淑芬, 范泽涛, 张志华, 夏　雨. 汽车悬架用 SPMSM 转矩脉动谐波畸变率协同优化[J]. 微特电机, 2026, 54(6): 9-13.

LIU Shufen, FAN Zetao, ZHANG Zhihua, XIA Yu. Collaborative Optimization of Torque Ripple and THD for SPMSM Used in Automotive Suspension Systems[J]. Small & Special Electrical Machines, 2026, 54(6): 9-13.

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