Thrust Performance Improvement in Permanent Magnet Synchronous Linear Motor Based on Double-layer Skewed Coil

In order to improve the thrust performance of permanent magnet synchronous linear motors (PMSLMs) which are widely used in high-precision CNC machine tools, a novel coil topology, called double-layer skewed coil (DSC) is proposed in this paper. Then, the equivalent magnetization method is introduced to establish the analytical model of the DSC-PMSLM for qualitative analysis of the thrust performance. Finally, based on the finite element simulation experiment, the accuracy of the analytical model is evaluated and the validity of the DSC is proved.