新能源汽车永磁同步电机控制策略及仿真研究

Control Strategy and Simulation Research of Permanent Magnet Synchronous Motor for New Energy Vehicle

以新能源汽车的永磁同步电机作为研究对象,根据电机坐标变换原理来建立电机数学模型。基于电机直接转矩控制方法,结合并设计超螺旋二阶滑模控制策略来同时对车用永磁同步电机进行控制,利用Matlab/Simulink软件建立整体电机控制策略模型并进行仿真。通过仿真结果表明所设计的电机控制策略可以有效对永磁同步电机进行控制,提高了对电机的控制精度和整个控制系统的鲁棒性,也验证了所建控制策略模型的有效性,为新能源汽车永磁同步电机控制策略的开发提供一定的研究基础。

Taking the permanent magnet synchronous motor of the new energy vehicle as the research object,the mathematical model of the motor is established according to the principle of motor coordinate transformation.Based on the direct torque control method of the motor,combined with the design of a super-spiral second-order sliding mode control strategy to simultaneously control the permanent magnet synchronous motor for vehicles,the overall motor control strategy model is established and simulated by Matlab/Simulink software.The simulation results show that the designed motor control strategy can effectively control the permanent magnet synchronous motor,improve the control accuracy of the motor and the robustness of the entire control system,and also verify the effectiveness of the built control strategy model.The development of permanent magnet synchronous motor control strategies for energy vehicles provides a certain research basis.