Co-simulation Based Electric Vehicle Drive for a Variable Flux Machine

Abstract

This paper presents a co-simulation platform for an electric vehicle motor drive system for a Variable Flux Permanent Magnet Synchronous Machine (VF-PMSM). A pair of software tools: JMAG, which allows computing the electromagnetic behavior and MATLAB, which allows the dynamic simulation of the control circuit and power converters are coupled to develop a VF-PMSM drive. Then, the co-simulation results are compared with conventional simulation (dq-mathematical model) and experimental results. The co-simulation gives higher fidelity results since it includes magnetic saturation (inductance nonlinearities) and machine geometry (torque ripple) effects, unlike conventional simulation approach.