Analytical Modeling of Consequent-Pole Flux Reversal Machine with Novel Magnet Arrangement

摘要

A two-dimensional analytical subdomain model for solving no-load and armature magnetic fields is established for a consequent-pole flux reversal machine (CPFRM) with two-segment permanent magnets (PMs) assembled in each stator tooth. According to the Poisson/Laplace equations for all the divided regions and the boundary condition equation between adjacent subdomains, a matrix is constructed to solved to obtain the analytical field expressions. Taking the 6-slot/14-pole CPFRM as an example, the flux linkage, back electromotive force (EMF) and torque are calculated and the proposed structure is optimized according to the analytical method. The optimized torque values are significantly better than the counterparts of the conventional structure. The analytical calculation results are consistent with the finite element analysis (FEA) method to verify the correctness of the analytical model.

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