Investigation of the effect of eccentricity in Flux Switching Permanent Magnet machines

This paper studies a 10/12 Flux Switching Permanent Magnet (FSPM) machine under static eccentricity fault to assess the performance of the machine under different operating conditions. Two-dimensional finite element method (FEM) is used to model the complicated structure of the machine in order to obtain accurate results. Furthermore, finite element analysis (FEA) is used to obtain air-gap flux density, machine's torque and the force between stator and rotor under different degrees of static eccentricity. Furthermore, Fourier analysis is performed to study magnetic force and torque profiles. To the best awareness of the authors, the effects of the eccentricity of FSPM machines have not been studied previously.