永磁开关磁链直线电机若干优化设计方法

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Abstract Permanent magnet flux switching linear machines(PMFSLM) have the advantages of conventional PM linear machines, and more importantly, they possess the unique merit of low cost. Therefore, they have gained great application potentials. In this paper, basic structure and operation principle of the PMFSLM are briefly described, and optimization of dimensional parameters of the primary and secondary cores is recommended to reduce the back EMF harmonics and the thrust force ripple, whilst magnetic bridge is utilized to enhance the field weakening capability and the primary core ruggedness. Furthermore, techniques of suppressing the cogging torque in rotary machines are employed to reduce the cogging effect component in the thrust force ripple of PMFSLM, and assistant teeth configuration is proposed to effectively reduce the end effect component in the thrust force ripple. Finally, a modular structure is presented to enhance the fault tolerance as well as the symmetry between the end coils and the inner coils of the primary.

Key words： Permanent magnet flux switching machine linear machine thrust force ripple fault tolerance modular design

Received: 13 September 2013 Published: 26 March 2014

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TM351

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	Shen Jianxin
	Wang Canfei
	Fei Weizhong
	Wang Yu
	Jin Mengjia

Cite this article:

Shen Jianxin,Wang Canfei,Fei Weizhong等. Some Optimal Design Methods for Permanent Magnet Flux Switching Linear Machines[J]. Transactions of China Electrotechnical Society, 2013, 28(11): 1-8.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I11/1

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