连续极永磁直线同步电机定位力和推力波动抑制研究

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Abstract Permanent magnet linear synchronous motor (PMLSM) has the advantages of high thrust density, high efficiency and no intermediate transmission mechanism. Usually, PMLSM uses N-S pole permanent magnets (PMs), which, however, has the disadvantage of high cost when motor with long stroke uses a large number of PMs. Oriented to automated production lines, a new continuous pole modular PMLSM scheme is applied for applications where the load variation range is not large. The electromagnetic characteristics of consequent-pole PMLSM are simulated by finite element method. By optimizing the size parameters of permanent magnet, the influences of the pole arc coefficient and the thickness of permanent magnet on the electromagnetic characteristics and thrust characteristics of motor are analyzed. In order to eliminate the fundamental and odd harmonics of end force and suppress the detent force and thrust ripple, a four-stage modular topology is proposed and a corresponding piece level function model is established.

Key words： consequent-pole detent force finite element method linear motor modularization permanent magnet motors thrust ripple

Received: 18 March 2022

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	HU Yuan
	LI Jing
	HUANG Xuzhen

Cite this article:

HU Yuan,LI Jing,HUANG Xuzhen. Research on detent force and thrust ripple suppression of consequent-pole permanent magnet linear synchronous motor[J]. Electrical Engineering, 2022, 23(9): 1-7.

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http://dqjs.cesmedia.cn/EN/Y2022/V23/I9/1

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