关键词: 电动汽车, 永磁同步电机, 切换转矩, 电流矢量控制, 直接转矩控制

Abstract:

In order for the electric vehicle to obtain the ideal compensation yaw moment, it is necessary to control the actual output torque of the motor to track the required high frequency, non-directional switching torque. The surface-mounted permanent magnet synchronous motor was taken as the research object. The current vector control and the direct torque control simulation model were built respectively. The performance of the high frequency switching torque tracking response of the two control methods was simulated and analyzed while the fixed frequency and amplitude square wave was taken as the model input. The simulation results show that the tracking performance of the current vector control is more superior.

Key words: electric vehicles, permanent magnet synchronous motor, switching torque, current vector control, direct torque control