Electromagnetic Vibration Analysis and Optimization Design of Stator Permanent Magnet Counter-Rotating Dual-Rotor High-Speed Flywheel Motor

YAN Zuoguang; YANG Yubin; ZHANG Meng; GUO Hongying; WU Shaopeng

doi:10.7652/xjtuxb202601020

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Electromagnetic Vibration Analysis and Optimization Design of Stator Permanent Magnet Counter-Rotating Dual-Rotor High-Speed Flywheel Motor

Special Topic Pollution Control and Resource Utilization in the “Dual Carbon”Context | 更新时间：2026-01-15

- Electromagnetic Vibration Analysis and Optimization Design of Stator Permanent Magnet Counter-Rotating Dual-Rotor High-Speed Flywheel Motor
- Journal of Xi'an Jiaotong University Vol. 60, Issue 1, Pages: 201-210(2026)
- 作者机构：
  
  哈尔滨工业大学电气工程及自动化学院，150080，哈尔滨
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202601020
  CLC： TM159
- Received：24 April 2025，
  
  Published：10 January 2026
- 稿件说明：
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YAN Zuoguang, YANG Yubin, ZHANG Meng, et al. Electromagnetic Vibration Analysis and Optimization Design of Stator Permanent Magnet Counter-Rotating Dual-Rotor High-Speed Flywheel Motor[J]. Journal of Xi'an Jiaotong University, 2026, 60(1): 201-210.
DOI：

YAN Zuoguang, YANG Yubin, ZHANG Meng, et al. Electromagnetic Vibration Analysis and Optimization Design of Stator Permanent Magnet Counter-Rotating Dual-Rotor High-Speed Flywheel Motor[J]. Journal of Xi'an Jiaotong University, 2026, 60(1): 201-210. DOI： 10.7652/xjtuxb202601020.

摘要

为解决定子永磁型对转双转子高速飞轮电机（SPMCRDR-HSEM）自身典型双凸极结构及高速、高频运行所引起的高电磁振动问题，围绕该电机开展电磁振动分析及优化设计。依据麦克斯韦应力方程构建SPMCRDR-HSEM径向电磁力半解析计算模型，确定引起电磁振动的最低阶径向电磁力谐波阶次。针对最低阶径向电磁力，提出一种分裂容错齿新结构，分析其径向电磁力及电磁振动抑制原理。采用优劣解距离法确定分裂容错齿最优结构参数，并基于有限元法对采用传统容错齿结构和分裂容错齿结构的两台SPMCRDR-HSEM径向气隙磁密、径向电磁力、电磁振动以及输出转矩等性能进行对比分析。研究结果表明，优化后的SPMCRDR-HSEM在保持良好转矩性能的同时，其内、外电机容错齿处振动加速度分别降低了42.10%和44.42%，电磁振动得到有效抑制。搭建实验平台进行振动实验测试，测试结果与仿真结果相符，验证了所提出的分裂容错齿结构的合理性及优化方法的有效性，拓宽了定子永磁型电机应用领域，为定子永磁型电机电磁振动抑制提供了新思路。

Abstract

To address the high electromagnetic vibration caused by the typical dual-salient-pole structure and high-speed，high-frequency operation of the stator permanent magnet counterrotating dual-rotor high-speed flywheel motor (SPMCRDR-HSEM)，the electromagnetic vibration analysis and optimization design of the machine are carried out.A semi-analytical calculation model for the radial electromagnetic force ofSPMCRDR-H SEMis established based on the Maxwell stress equation，and the lowest-order radial electromagnetic force harmonic responsible for electromagnetic vibration is identified.To mitigate this lowest-order radial electromagnetic force，a novel split fault-tolerant tooth structure is proposed，and its principles for suppressing radial electromagnetic force and electromagnetic vibration are analyzed.The optimal structural parameters of the split fault-tolerant tooth are determined using the optimal split distance method.The performance of two SPMCRDR-HSEM prototypes—one with a traditional fault-tolerant tooth structure and the other with the split fault-tolerant tooth structure—is compared using the finite element method.The comparison focuses on radial air-gap magnetic flux density，radial electromagnetic force，electromagnetic vibration，and output torque.The results demonstrate that the optimizedSPMCRDR-H SEMmaintains excellent torque performance while reducing vibration acceleration at the fault-tolerant teeth of the inner and outer motors by 42.10% and 44.42%，respectively，effectively suppressing electromagnetic vibration.An experimental platform is built to conduct vibration tests，and the test results align with the simulation results，validating the rationality of the proposed split fault-tolerant tooth structure and the effectiveness of the optimization method.This study broadens the application field of stator-permanent-magnet motors and provides a new approach for suppressing electromagnetic vibration in such motors.

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references

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