Optimal design of stator interior permanent magnet machine based on finite element analysis

摘要

This article investigates the optimal design of the stator interior permanent magnet (SIPM) machine for sinusoidal electromotive force (EMF) waveform. The key is to develop a design approach for the rotor pole arc and rotor skewing of the SIPM machine in such a way that total harmonic distortion of the EMF waveform is the minimum. The two-dimensional finite element analysis is employed to calculate the magnetic field distributions in terms of the different rotor pole arc and rotor skewing angle. A prototype of three-phase 12/10-pole SIPM machine is used for exemplification. Both the predicted and measured results are given to illustrate the proposed machine.