Abstract
Flux-switching permanent magnet (FSPM) machine is a kind of stator-typed permanent magnet machine, which is suitable for driving electric vehicles and hybrid electric vehicles because of their large power/torque density and high efficiency. The axial field flux-switching permanent magnet machine (AFFSPMM) and radial field flux-switching permanent magnet machine (RFFSPMM) with H-typed iron cores are reached and compared in this paper. On the condition of the same outer diameters and total volumes, the electromagnetic performances of the two machines are analyzed and compared by the three-dimensional finite element method, including the air gap flux density, inductance, back electromotive force (EMF), electromagnetic torque and loss. The finite element results show that the copper loss of AFFSPMM is higher than that of RFFSPMM at the rated load, however, the total loss of AFFSPMM is lower than that of the RFFSPMM. Meanwhile, AFFSPMM has greater torque than RFFSPMM in the constant power range. The related experiments are done to validate the finite element results, which are basically consistent with experiment results.
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