无铁心圆筒型永磁同步直线电动机磁场分析

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Abstract The analytical method effectively solves the problem of long solution time for finite element method in tubular linear motors. Currently, most analytical methods focus on analyzing tubular linear motor with iron core, and there is little analysis on ironless tubular permanent magnet synchronous linear motor (ITPMSLM) without iron core. In response to this issue, this article adopts the separation of variables method to solve ITPMSLM. Firstly, a sub domain analytical model of the motor is established, then the separation of variables method is used to obtain the analytical expression of the air gap magnetic density at no load, and the expressions of the back electromotive force and thrust of the motor are derived. Finally, finite element simulation is conducted, and the results show the effectiveness of this analytical method in analyzing ITPMSLM.

Key words： analytic method tubular ironless the method of separation of variables

Received: 08 June 2023

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	Articles by authors
	TAN Haoyuan
	LAN Zhiyong
	LUO Yuanjun
	YE Shufan
	ZHU Difei

Cite this article:

TAN Haoyuan,LAN Zhiyong,LUO Yuanjun等. Design and magnetic field analysis of ironless tubular permanent magnet synchronous linear motor[J]. Electrical Engineering, 2023, 24(7): 39-46.

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http://dqjs.cesmedia.cn/EN/Y2023/V24/I7/39

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