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Research on Electromagnetic Vibration Characteristics of a Permanent Magnet Synchronous Motor Based on Multi-Physical Field Coupling

Author

Listed:
  • Dongwen Wang

    (Automation Research and Design Institute of Metallurgical Industry Co., Ltd., Beijing 100071, China)

  • Wei Yang

    (Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China)

  • Jiafeng Yang

    (Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China)

  • Kongming Jiang

    (Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China)

  • Yang Fu

    (Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China)

Abstract

Background and Purpose: The stator vibration characteristics are comprehensively mastered by considering the influence of winding and the housing structure on the stator modes. This effect is neglected in the research field of electromagnetic vibration of permanent magnet synchronous motors (PMSMs). Methods: The radial air-gap flux density equations and PMSM’s electromagnetic force density are derived, and then the harmonic characteristics of electromagnetic force density are studied. An equivalent finite element model of the stator is proposed that investigates the impacts of the winding and stator housing rules on the stator modal frequency. Finally, the harmonic response and acoustic analyses of electromagnetic vibration are carried out based on multi-physics field coupling. Results: The equivalent radiated power distribution laws and acoustic field of motor electromagnetic vibration under transient operating conditions are obtained. The theoretical analysis results are consistent with the experimental results. Conclusion: The obtained results show that the spatial order of the radial electromagnetic force is not equal to the order of the radial mode of the motor stator. The reason for this is that structural resonance is induced when the frequency components of the spatial radial electromagnetic force are coupled with the intrinsic frequency of the stator.

Suggested Citation

  • Dongwen Wang & Wei Yang & Jiafeng Yang & Kongming Jiang & Yang Fu, 2023. "Research on Electromagnetic Vibration Characteristics of a Permanent Magnet Synchronous Motor Based on Multi-Physical Field Coupling," Energies, MDPI, vol. 16(9), pages 1-15, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:9:p:3916-:d:1140264
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