The Detent Force Analysis of Permanent Magnet Linear Synchronous Motor according to the skew

영구자석형 선형 동기전동기의 skew에 따른 디텐트력 특성해석

The severe problem in improving the positioning precision of a permanent linear synchronous motor(PMLSM) is the large detent force caused by the PM. It is generally an undesired effect that contributes to the torque ripple, vibration and noise of machine. In this paper, the method to reduce detent force according to the mover skew is studied and analyzed using the analytical method. The analytical results are validated by finite clement analyses.