河北科技大学学报2025，Vol.46Issue(1)：8-20,13.DOI:10.7535/hbkd.2025yx01002
不同极槽配合车用永磁电机多物理场仿真分析
Multi physics field simulation analysis of different pole slots combined with automotive permanent magnet motors
摘要
Abstract
Aiming at the problems in the design of permanent magnet synchronous motor for vehicles,taking the 8-pole 48-slot and 8-pole 36-slot interior permanent synchronous motors as subject,the influence of different pole-slot combinations on the electromagnetic performance and vibration noise of permanent magnet synchronous motor for vehicles were researched.Firstly,the torque ripples and no-load back electromotive forces of the permanent synchronous motor with different pole-slot combinations were comparatively analyzed in order to investigate the influence of different pole-slot combinations on the electromagnetic performance of the motor.Secondly,the analytical model of electromagnetic force wave was deduced based on Maxwell stress tensor method,and the spatial order and frequency characteristics of the electromagnetic force wave of the motor with different pole-slot combinations were analyzed by the analytical model and the finite element model,respectively.Finally,a multi-physical field coupling model of the motor was established to investigate the effects of different pole-slot combinations on the vibration noise of the permanent magnet synchronous motor.The results show that the 8-pole 36-slot motor is significantly better than the 8-pole 48-slot motor in terms of torque ripple,no-load back electromotive force,and other electromagnetic performances.However,due to the existence of lower spatial non-zero electromagnetic force waves,it is more likely to trigger resonance and generate vibration noise.The analytical results reveal the effects of different pole-slot combinations on the electromagnetic performance and vibration noise of permanent magnet synchronous motors,and provide theoretical references for the selection of pole-slot combinations and subsequent optimization of motor design.关键词
电机学/永磁同步电机/极槽配合/电磁性能/振动噪声/电磁力波Key words
electrical machinery/permanent magnet synchronous motor/pole-slot combination/electromagnetic perform-ance/vibration noise/electromagnetic force wave分类
信息技术与安全科学引用本文复制引用
李国昊,尹红彬,孙义港,张哲,毕向军,胡文静..不同极槽配合车用永磁电机多物理场仿真分析[J].河北科技大学学报,2025,46(1):8-20,13.基金项目
国家自然科学基金(52305267) （52305267）
山东省自然科学基金(ZR2022QE116) （ZR2022QE116）
山东省精密制造与特种加工重点实验室资助项目(90015322019) （90015322019）
