Analysis of partitioned stator flux-switching permanent magnet machine by magnetic equivalent circuit

Abstract

This paper presents a novel technique for modeling Partitioned Stator Flux-Switching Permanent Magnet (PS-FSPM) machine by Magnetic Equivalent Circuit (MEC) method which provides adjustable accuracy for the modeling of the machine. The machine geometry is divided into 13 zones, where the number of flux tubes in the core and air parts can be selected. Considering multiple flux tubes in the teeth and slots regions, the flux distribution can be accurately obtained. The saturation effect of the core elements are also taken into account by nonlinear reluctances. A novel method for saturation effect is proposed, where the B-H curve can be tuned by selectable parameters. The proposed model is capable of modeling PS-FSPMs with various poles-teeth combination. Finally, the results of the proposed method are compared with finite element method (FEM) in terms of accuracy and processing time.