基于齿槽转矩的永磁同步电主轴动态性能试验研究

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Abstract Permanent magnet synchronous motors (PMSM) used in high-speed electric spindle can improve the efficiency and power of electric spindles, but their cogging torque can cause vibration and noise problems. Based on the theory of PMSM, influencing factors and restraining measures of cogging torque were discussed. Aiming at the permanent magnet synchronous electric spindles (PMSES) with two different rotor structures of built-in PMSM, a step-skewed rotor and a non-skewed rotor, their cogging torques were analyzed theoretically and tested experimentally. On this basis, the dynamic performances of their noise, vibration and speed stability were emphatically studied. The results show that the cogging torque of built-in PMSM is an important factor affecting the vibration and noise of PMSES. Under the same conditions, the step-skewed rotor structure can effectively weaken the cogging torque of PMSES, reduce the vibration and noise, and improve speed stability.

Key words： PMSES cogging torque rotor structure vibration and noise dynamic performance

Received: 21 May 2019 Published: 15 October 2020

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	Articles by authors
	LI Songsheng
	YANG Huanzhao
	HE Guoqing
	ZHANG Guoye
	LIU Yangyang
	ZHENG Zhiqiang

Cite this article:

LI Songsheng,YANG Huanzhao,HE Guoqing, et al. Experimental study on dynamic performance of permanent magnet synchronous electric spindles based on cogging torque[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(20): 216-222.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I20/216

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