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| Semi-Analytical Model of Vibration and Noise for Permanent Magnet Synchronous Motor Considering Current Harmonics |
| Lin Fu, Zuo Shuguang, Mao Yu, Wu Shuanglong, Deng Wenzhe |
| Clean Energy Automotive Engineering Center Tongji University Shanghai 201804 China |
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Abstract This paper proposes a semi-analytical model which can be used to analyze the influence of current harmonics on vibration and noise of permanent magnet synchronous motor(PMSM)and increases calculation efficiency.Firstly,analytical method and finite element(FE)method were combined to calculate permanent magnet field and relative permeance.Analytical model for armature reaction field considering arbitrary current shape was also built and Maxwell stress tensor method was used to calculate radial force density.The result agrees well with the result that getting by FE method.Then,two dimensional(2-D)fast Fourier transform(FFT)was employed to obtain the frequency of specifically spatial order force.The stator surface vibration and noise were predicted in the case of basing on the analytical model of shell vibration and sound radiation.The predicted results were validated by tests and are able to reflect the main vibration/noise peaks and distribution.Finally,the frequency order and peak changes of vibration and noise due to current harmonics were analyzed.The work in this paper can help to analyze the vibration and noise of PMSM efficiently in the design process.
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Received: 22 January 2016
Published: 12 May 2017
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2017, Vol. 32 
