基于变结构自抗扰的车用PMSM模型预测控制

PMSM MODEL PREDICTIVE CONTROL OF VEHICLES BASED ON VARIABLE STRUCTURE ACTIVE DISTURBANCE REJECTION

为了满足电动汽车在驱动过程中对电机的控制精度及快动态响应的要求,研究一种基于变结构自抗扰控制的永磁同步电机模型预测电流控制策略。以模型预测电流控制为电流环,结合自抗扰控制和变结构控制的特点,构造变结构自抗扰速度控制取代传统的PI调节器。在保留常规自抗扰性能的同时,简化了参数整定,有效地提高了系统的控制精度和抗扰性能。利用李雅普诺夫理论证明了系统的渐近稳定性。通过仿真和实验验证了该方法的可靠性和有效性。

In order to meet the motor＇s control precision and fast dynamic response requirements during the driving process of the electric vehicle,this paper studied a kind of permanent magnet synchronous motor model predictive current control strategy based on variable structure ADRC. The model predicted the current control as a current loop,combined the characteristics of auto-disturbance rejection control and variable structure control,and constructed variable structure ADRC speed control to replace the traditional PI regulator. While preserving the conventional auto-disturbance performance,it also simplified the parameter tuning and effectively improved the control accuracy and immunity performance of the system. The Lyapunov theory was used to prove the asymptotic stability of the system. Finally,the reliability and effectiveness of the proposed method were verified by simulation and experiments.