初级永磁型游标直线电机设计与静态特性分析

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Abstract In this paper a new linear primary permanent magnet vernier (LPPMV) machine is proposed. The primary side consists of an iron core with salient teeth wound with 3-phase armature windings and PMs mounted on the surface of stator teeth. The translator is designed as a simple iron core with salient teeth so that it is very robust to transmit high thrust force. Based on the magnetic-gear effect, the magnetic field modulation function of the translator teeth can produce a high-speed magnetic harmonic to improve the no-load EMF and thrust force density of the machine. Based on the analysis of the operation principle of the machine, the power equation is derived using the equivalent magnetic circuit method and the initial calculation of the main dimensions is presented. By using the finite element method, the static characteristics of the proposed machine including the PM flux linkage, no-load EMF, inductance, cogging force and thrust force are analyzed. The results show that the LPPMV machine possesses the merits of high thrust force density and low cogging force. Also, it confirms that this machine is very suitable for low-speed and high-thrust force application, such as the wave energy conversion.

Key words： LPPMV machine vernier machine wave energy conversion finite element analysis.

Received: 10 May 2012 Published: 20 March 2014

PACS:	TM351
	TM356
	TM359.4

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	Du Yi
	Cheng Ming
	K.T. Chau

Cite this article:

Du Yi,Cheng Ming,K.T. Chau. Design and Analysis of a New Linear Primary Permanent Magnet Vernier Machine[J]. Transactions of China Electrotechnical Society, 2012, 27(11): 22-30.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I11/22

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