Analytical approach for magnetic and acoustic modeling of flux-switching permanent-magnet motors: Application to geometrical optimization

This paper deals with multi-physics analytical approach for magnetic, mechanical and acoustic modeling of Flux-Switching Permanent-Magnet (FSPM) motors. The major advantage of this model is the low-computation cost compared to finite element simulation. It contains: - Magnetic model obtained by formal resolution of magneto-static Maxwell equation by Fourier series decomposition. - Mechanical and stator eigenfrequencies model based on energy method (Hamilton principle) with computation and minimization of Rayleigh quotient. - Vibratory and acoustic model obtained on computating the stator deformation through dynamic equilibrium equation in modal base formed by stator eigenmodes. First, analytical model will be introduced then validated by finite element simulation and/or by experimental measurements. Second, geometrical optimization will be presented for 3-phase 12/10 and 5-phase 20/18 FSPM motors.