Abstract
The movement performance of Permanent Magnet Linear Synchronous Motor (PMLSM) is seriously affected by the detent force (DF). In order to restrain the detent force fluctuation of PMLSM, the single auxiliary pole installed at the end of the primary iron core is proposed in this paper. First, 16-pole/18-slot PMLSM is simulated and analyzed by finite element method, the influence of the key parameters such as the size of single auxiliary pole and the distance between the auxiliary pole and the end of iron core is studied, and compared the detent force with the motor without auxiliary pole structure. The result shows that the peak to peak value of detent force of this PMLSM is only 11.7 N after using the single auxiliary pole, which is 83.9% less than that of the motor without auxiliary pole structure. Finally, the detent force characteristics of the prototype are tested to verify the relevant research in this paper.
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