电动汽车永磁同步电机控制策略研究

Research on control strategy on permanent magnet synchronous motor for electric vehicle

针对电动汽车永磁同步电机控制系统工作时,存在精度低、抗干扰能力弱等问题,在分析永磁同步电机数学模型的基础上,搭建驱动电机双闭环调速控制系统模型,引入了自适应模糊PID控制方法。利用MATLAB/Simulink实现了系统的设计和仿真。结果表明:在同等环境下,相比较普通PID控制,该系统应用自适应模糊PID控制方法具有更好的抗干扰能力,在应用到电动汽车驱动当中有良好的速度跟随性和适应性。

Aiming at solving such problems as low precision and poor anti-interference ability in the operation of the permanent magnet synchronous motor（PMSM） control system for electric vehicles, the author analyzes the permanent magnet synchronous motor in terms of a mathematical model, establishes a double closed-loop speed control system model of driving motor. An adaptive fuzzy PID control method is proposed, whose design and simulation are realized by using MATLAB/Simulink. The results indicate that in the same environment, the adaptive fuzzy PID control method proves to possess better anti-interference ability than the ordinary PID control, and its application in the electric vehicle driving can guarantee a good following performance and adaptability.