Suppressing the Three-Phase Flux Linkage Asymmetry of Modular Flux-Switching Permanent-Magnet Linear Machine by Rearranging Windings

This article proposes a winding rearrangement method to address the asymmetric flux linkage of the modular flux-switching permanent-magnet linear machine (FSPMLM). Due to the end effect, the two-end winding flux linkages respectively shift in a positive and a negative direction, with respect to the middle winding. In the proposed method, the two ends of the windings are connected to the same phase, while the rest are rearranged and the module spacing is adjusted. Ultimately, the three-phase superposition flux linkages are almost symmetric. The finite element analysis is used to verify the feasibility of the method.