基于定子齿削角的近极槽永磁同步电机振动噪声削弱方法

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Abstract For the permanent magnet synchronous motor with similar number of poles and slots, its noise and vibration characteristics possess many particularities. From the magnetic field, first, the flux density distribution expression produced by permanent magnet in fractional-slot permanent magnet synchronous motor under the stator tooth chamfering condition is analyzed. Then, the harmonic amplitudes with different tooth chamfering angles are calculated by the derived analytical expressions. Finally, the impact on noise and vibration of the motor is calculated and analyzed by the finite element method(FEM) and analytical expressions. The results show that the vibration and noise of surface- mounted permanent magnet synchronous motor with similar number of poles and slots can be effectively reduced by using the method of stator tooth chamfering.

Key words： Similar pole and slot surface-mounted PMSM noise and vibration finite element method(FEM) stator tooth chamfering

Received: 20 October 2014 Published: 10 April 2015

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TM315

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	Li Yan
	Li Shuangpeng
	Zhou Jiwei
	Li Longnü

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Li Yan,Li Shuangpeng,Zhou Jiwei等. Weakening Approach of the Vibration and Noise Based on the Stator Tooth Chamfering in PMSM with Similar Number of Poles and Slots[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 45-52.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I6/45

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