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Analysis and evaluation of electromagnetic vibration and noise in permanent magnet synchronous motor with rotor step skewing

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Abstract

In this paper, a multi-physics simulation model capable of electromagnetic noise prediction is established, and the effectiveness of the established simulation model in predicting and evaluating electromagnetic noise is verified. Based on the verified motor model, a rotor step skewing model which can affect electromagnetic noise is proposed, and the influence of the skewing angle on electromagnetic noise is investigated in detail. By studying the spectral characteristics of the low-order radial magnetic force which has a great influence on electromagnetic noise, the distribution of electromagnetic noise characteristics of the permanent magnet synchronous motor (PMSM) with or without the rotor step skewing is compared and analyzed. Therefore, it lays a technological foundation for predicting and suppressing the electromagnetic vibration noise of electric vehicle (EV) driving motor in the electromagnetic design.

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Authors and Affiliations

  1. School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China

    QiChao Dong, XinTian Liu & YanSong Wang

  2. Guangzhou Automobile Group CO., LTD Automotive Engineering Institute, Guangzhou, 511343, China

    HongZhong Qi & Chao Sun

Authors
  1. QiChao Dong
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  2. XinTian Liu
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  3. HongZhong Qi
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  4. Chao Sun
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  5. YanSong Wang
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Correspondence to XinTian Liu.

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Dong, Q., Liu, X., Qi, H. et al. Analysis and evaluation of electromagnetic vibration and noise in permanent magnet synchronous motor with rotor step skewing. Sci. China Technol. Sci. 62, 839–848 (2019). https://doi.org/10.1007/s11431-018-9458-5

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  • DOI: https://doi.org/10.1007/s11431-018-9458-5

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