Analytical model for PMSM Analysis Including Finite Soft-Magnetic Material Permeability

Abstract

This paper presents a simplified analytical method to predict the influence of magnetic finite permeability of iron core on machine’s parameters of a surface mounted permanent magnet synchronous machine. On the open circuit, two-dimensional field distributions produced by permanent magnets synchronous machine (PMSM) are obtained in analytical approach forms by taking into account the relative permeability value of a ferromagnetic rotor and stator core. The analytical solution is given by applying boundary and interface conditions in each region of the proposed machine. Analytical method is verified by the finite-element analysis (FEA).