The electromagnetic performance calculation and comparison of flux reversal machine with different winding topologies

Abstract

In this paper, the analytical model of flux reversal machine with four permanent magnets on one stator tooth and different winding topologies including the concentrated winding and the distributed windings are presented. The electromagnetic performance such as the flux density, flux linkage, back-EMF and the electromagnetic torque are compared. It is found that the power density of flux reversal machine with the distributed windings is greatly improved than that with the concentrated windings. At last, the conclusions are verified with the finite element methods(FEM).

Comparison of stator‐ and rotor‐surface‐mounted PM brushless machines

“…From the previous literature, it is easy to find that most research studies on SSPM machines are focused on machine dimension optimizations [8][9][10][11][12][13][14][15][16][17][18], especially on cogging torque reduction [13][14][15][16][17][18] and general design procedures that should be considered during the preliminary design stage [19][20][21][22][23][24][25][26]. In [8,19], the design procedures are proposed to guide the engineers how to optimally choose the key dimensions, including slot/pole combination, stator inner radius, air-gap length, electric loading, etc.…”