抑制永磁同步电机转矩脉动的转子再设计方法

中国机械工程

抑制永磁同步电机转矩脉动的转子再设计方法

宋守许;李诺楠;杜毅;刘涛

合肥工业大学机械工业绿色设计与制造重点实验室，合肥，230009

出版日期:2019-09-10 发布日期:2019-09-11
基金资助:
国家自然科学基金资助项目(51575155)

Rotor Redesign Method for Suppressing Torque Ripples of Permanent Magnet Synchronous Motors

SONG Shouxu;LI Nuonan;DU Yi;LIU Tao

Green Design and Manufacturing of Mechanical Industry Key Laboratory，Hefei University of Technology,Hefei,230009

Online:2019-09-10 Published:2019-09-11

摘要/Abstract

摘要： 为抑制再制造永磁同步电机的转矩脉动，提出了单一极内偏心槽、组合偏心槽、磁桥优化的递进再设计方法。以车用JEEMC01003B型永磁同步电机为研究对象，解析了单一极内偏心槽和组合偏心槽对齿槽转矩和谐波转矩的影响。在此基础上进行了磁桥再设计，综合优化了转矩脉动。研究结果表明：与原电机相比，再制造电机的转矩脉动减小了3%，平均转矩增大了0.2 N·m，齿槽转矩减小了6%，铁耗减少了4.7 W/kg，磁密畸变率降低了5.6%，效率提高至97.60%，电机性能明显得到提升。

关键词: 再制造电机, 偏心槽, 磁桥, 转矩脉动, 再设计

Abstract: In order to suppress the torque ripples of remanufactured permanent magnet synchronous motors, a progressive redesign method of single inner pole eccentric groove, combined eccentric groove and magnetic bridge optimization was proposed. Taking JEEMC01003B permanent magnet synchronous motors for vehicles as the research objects, the influences of single inner pole eccentric groove and combined eccentric groove on cogging torques and harmonic torques were analyzed. Based on these, the magnetic bridge redesign was carried out and the torque ripples were comprehensively optimized. The research results show that compared with the original motor, the torque ripples of the remanufactured motors are decreased by 3%, the average torques are increased by 0.2 N·m, the cogging torques are decreased by 6%, the iron losses are reduced by 4.7 W/kg, the magnetic density distortion rates are reduced by 5.6%, and the efficiency is improved to 97.60%, the motor performance is improved significantly.

Key words: remanufactured motor, eccentric groove, magnetic bridge, torque ripple, redesign

中图分类号:

TM351

宋守许;李诺楠;杜毅;刘涛. 抑制永磁同步电机转矩脉动的转子再设计方法[J]. 中国机械工程.

SONG Shouxu;LI Nuonan;DU Yi;LIU Tao. Rotor Redesign Method for Suppressing Torque Ripples of Permanent Magnet Synchronous Motors[J]. China Mechanical Engineering.

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