电动汽车驱动控制系统仿真

Simulation of Drive Control System in Electric Vehicle

根据直接转矩控制原理,利用Matlab/Simulink构造了一个电动汽车直接转矩控制系统。主要对直接转矩控制算法、驾驶意图和电动汽车阻力转矩建模并仿真,得到了定子磁链、定子电流、转速、电磁转矩、阻力转矩等的仿真波形,结果分析证明了电动汽车用异步电机直接转矩控制方案的有效性。

A direct torque control （DTC） system of asynchronous motor in electric vehicle （EV） based on the Matlab/Simulink is designed according to the principle of DTC. The system model mainly consists of DTC method model,drive intention model and resistance torque of EV model. The waveform of stator flux linkage, stator current, rotor speed, electromagnetic torque and resistance torque are given from the DTC system. The simulation results verify the validity of the model for DTC system of asynchronous motor in EV.