Magnet Slotting Design to Reduce High Order Electromagnetic Force and Vibration of Permanent Magnet Motor

Zifei Wang, Wei Tian () and Wenxiang Zhao
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Zifei Wang: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
Wei Tian: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
Wenxiang Zhao: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China

Energies, 2022, vol. 15, issue 22, 1-14

Abstract: In this paper, a new method is proposed to suppress the vibration caused by the modulation effect of high-order electromagnetic forces in permanent magnet (PM) motors. Firstly, the modulation effect of the radial force was investigated, which indicated that the higher-order electromagnetic force could cause modulated vibrations through the modulation effect. Then, auxiliary slots on the magnet surface and their effect on vibration reduction were investigated. The optimal shape of the auxiliary slot was found to minimize the noise of motor vibration. Finally, the method was verified experimentally.

Keywords: electromagnetic force modulation effect; electromagnetic vibration; higher order electromagnetic harmonics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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