基于CMPC的纯电动车后桥驱动电机的速度控制

Speed Control of Rear Axle Drive Motor for Pure Electric Vehicles Based on CMPC

为实现快速稳定调节电动车车速和驱动电机电流,文章提出了基于电流模型预测控制的磁场定向控制的速度控制策略。该策略利用驱动电机和电压源逆变器的数学模型预测驱动电机的电流,选择使目标函数最小化的电压矢量。在MATLAB/Simulink环境下进行仿真研究。结果表明,该策略在设定速度变化和负载变化情况下均可以快速稳定地跟踪车速和电机电流。

In order to achieve rapid and stable adjusting the electric vehicle speed and drive motor current,a speed control strategy for field oriented control based on current model predictive control is proposed.The strategy uses the mathematical model of the drive motor and the voltage source inverter to predict the current of the drive motor,and selects the voltage vector that minimizes the objective function.Simulation research is performed in MATLAB/Simulink environment.The results show that the strategy can track vehicle speed and motor current quickly and stably under the conditions of setting speed change and load change.