Analysis of Flux Density in PMSM with Constant Mutual Flux Linkage Control Strategy Using FEM Model

Abstract

This paper presents flux density analysis of the Permanent Magnet Synchronous Machine in a closed-loop system. This system is developed in co-simulation with Ansys software using the FEM model of the machine. Here the vector control technique with constant mutual flux linkage control strategy is implemented. Different parameters such as electromagnetic torque, speed, stator current, flux density at different parts of the stator is analyzed in different operating conditions. However, the losses of motor highly depend on the rate of change of flux density, which is the utmost factor while designing Motor drive. The novelty of the paper implies the consideration of flux density variation in different parts of the stator core under the different test cases. However, in case of MATLAB/Simulink it's not possible to consider these losses inherently. The FEM model of the PMSM is insinuated to the practical model of the motor. Hence this analysis will be helpful for the designer to improve the drive system towards practical applications.