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An Asymmetric Linear Switched Reluctance Motor

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3 Author(s)
J. F. Pan ; College of Mechatronics and Control Engineering, Shenzhen University, 518060 Shenzhen, China ; Yu Zou ; Guangzhong Cao

A novel double-sided electric asymmetric linear switched reluctance motor (LSRM) is proposed in this paper. The features of the proposed linear machine are that mover teeth and stators are not exactly identical according to the axis of the moving platform. This machine structure ensures that the alleviation of motor saturation magnetization effect and a higher thrust force output can be derived from the asymmetric LSRM. A thorough magnetic analysis is carried out for performance prediction of the machine, and results are compared to a symmetric LSRM counterpart. Both theoretical and finite-element methods results prove the priority of the asymmetric LSRM with higher force-to-volume ratio and better acceleration performance. Experimental results from the machine prototype validate the design of an asymmetric LSRM with yoke length of 12 mm.

Published in:

IEEE Transactions on Energy Conversion  (Volume:28 ,  Issue: 2 )