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Analysis of the reduction of detent force in a permanent magnet linear synchronous motor

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5 Author(s)
T. Yoshimura ; Dept. of Electr. & Electron. Eng., Musashi Inst. of Technol., Tokyo, Japan ; H. J. Kim ; M. Watada ; S. Torii
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The problem in improving the positioning precision of a permanent magnet linear synchronous motor (LSM) is the large detent force caused by the permanent magnet. The detent force is thought to arise from the difference of the position of a permanent magnet end and a tooth position. If one detent force is independent from the other, we can reduce the total detent force of the permanent magnet linear synchronous motor by the arrangement of a permanent magnet end and a tooth. This paper presents are improvement of the arrangement of the permanent magnet end of a linear synchronous motor in order to reduce the detent force by using numerical analysis

Published in:

IEEE Transactions on Magnetics  (Volume:31 ,  Issue: 6 )