Design of Electric Vehicle Motor Drive and Control System Based on PMSM

Abstract

Permanent magnet synchronous motor (PMSM) is widely used in electric vehicle power systems due to their high torque inertia ratio and high power density. However, the strong coupling of winding phase current and torque affects their control accuracy. In this paper, the drive and control of PMSM were studied according to the characteristics of electric vehicle operating conditions. Based on the traditional motor vector control, the control strategy of PMSM was analyzed in detail, and a permanent magnet synchronous motor drive and control system for electric vehicle was designed. The system uses the STM32F407VET6 chip as the controller and six power field effect transistors as the inverter driver, the precise control of the PMSM was realized. This research can provide reference for the design and analysis of the PMSM drive and control system for electric vehicles.