Comparative Study of E- and U-core Modular Dual-Stator Axial-Field Flux-Switching Permanent Magnet Motors With Different Stator/Rotor-Pole Combinations Based on Flux Modulation Principle

In this paper, the dual-stator axial-field flux-switching permanent magnet (DSAFFSPM) motors with E- and U-core stator modular segments, as well different stator/rotor-pole combinations are compared. The operation performance of DSAFFSPM machines explored by using MMF-permeance model method. A more comprehensive theoretical analysis, no limited to numerical calculation, is presented. This reveals directly relations between design parameters machine. comparisons E-shaped U-shaped teeth given, including effects structural on electromagnetic torque, winding factor gear ratio, differences average torque density efficiency in 12/10 6/10 E-core topology. These basis machine optimization. Finally, experiments two prototype, carried out. results show that prototype higher than while much higher.