Design and analysis of driving motor system for hybrid electric vehicle

Abstract

In order to improve the reliability and stability of hybrid electric vehicle driving motor system, according to the performance parameters of the hybrid electric vehicle, the driving motor system is designed and analyzed for the hybrid electric vehicle. Based on the performance parameters of the hybrid electric vehicle, the power parameters of the permanent magnet synchronous motor (PMSM) are calculated and determined, then the parameters of the stator core, the permanent magnet and the rotor core are designed and calculated, as well as other main characteristic parameters of the driving motor system are calculated. The model of a PMSM is established and simulated by ANSOFT Maxwell according to the obtained motor parameters, and then the steady state and transient state of the driving motor are simulated in different working points, and the electromagnetic and performance curves are combined to determine the overall performance requirements of the driving motor, which can be used to match the hybrid electric vehicle. The simulation results show that the designed PMSM can be used to match the hybrid electric vehicle and meet the performance requirements of the vehicle. The final simulation analysis results are in good agreement with the theoretical calculation results, which indicates that this method can be used to afford a theoretical basis to reduce the cogging torque and optimize the in-wheel motor of electric vehicle in the future.

Co-Simulation and Modeling of PMSM Based on Ansys Software and Simulink for EVs

“…Maxwell is a rotary motor design software solution that is capable of quickly calculating the performance indicators of a variety of motors (synchronous motors, induction motors, mechanical, or electronic commutation motors, etc.). In the process of using RMxprt, the user should specify the motor's stator and rotor diameter, slot, iron core length, insulation, winding, and some other related parameters, as well as the size of the permanent magnet with the material type [17]. PMSM design involves a variety of parameters, including electrical (inductance, resistance, back emf, and current), geometric (outside/inside radius of rotor, outside/inside radius of stator, and stator back) and magnetic.…”