The Use and Improvements of Permanent Magnet Synchronous Motors in the Field of New Energy Vehicles

Under the dual pressure of emission limit of traditional fuel vehicles and energy shortage, new energy vehicles have received wide attention as a viable alternative. As the core component of new energy vehicles, the selection and optimization of motors are crucial to the overall performance and energy efficiency of the vehicle. This paper analyzes the demagnetization phenomenon of PMSM in operation, and obtains the cause of demagnetization phenomenon through the analysis of formula and simulation, and puts forward the method to improve this phenomenon.