电动汽车用异步电动机直接转矩控制系统仿真

Simulation of direct torque control system for electric vehicle's asynchronous motor

采用有关数学模型,建立异步电动机的仿真模型,并在此基础之上建立了基于MATLAB/Simulink的电动汽车用异步电动机直接转矩控制系统的仿真模型。对电动机启动后在不同负载下的运行工况进行动态仿真。仿真结果表明,该控制系统静态性能较好、控制精度高,能满足电动汽车用异步交流电动机控制的需要。

The simulation model of asynchronous motor is first established. On this basis, the direct torque control system of the asynchronous motor for the electric automobile is set up with Matlab/Simulink. The result of the motor＇s dynamic simulation under different loads indicates that the control system is accurate and valid.