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Magnetic Stress and Vibration Analysis of the Flux-Switching Permanent-Magnet Machines

This paper studies the magnetic stress and vibration behavior of the flux-switching permanent-magnet (FSPM) machines with concentrated winding. Firstly, the frequency and spatial radial stress harmonic features are investigated by the proposed analytical equations. Then, the analysis results are compared with the results predicted by finite-element analysis (FEA). The stator vibration is studied by harmonic response analysis. The influence of the tooth effect and high order spatial stress harmonics on the stator deformation are also investigated. Finally, a prototype has been designed and is under manufacture.