基于重复自抗扰控制的感应电机矢量控制方法

Research on Repetitive-Auto Disturbance Rejection Control Strategy for Induction Motors Based on Vector Control

为了实现感应电机的精确解耦和扰动补偿,降低自抗扰控制对参数的依赖性,提出一种基于重复自抗扰控制的感应电机矢量控制方法,该控制方法通过融入重复控制,进一步提升了传统感应电机自抗扰控制系统抗扰动的能力,并提高了控制精度。基于重复控制的思想,周期性跟踪并补偿误差,逐周期减小误差,提高了系统的扰动隔离度,因而减少了自抗扰控制对于参数鲁棒性的依赖性。仿真和实验结果验证了所提出的重复自抗扰控制方法比传统自抗扰控制在抗扰动性和参数变化方面有更好的控制效果和鲁棒性。

An active disturbance rejection control（ADRC） of induction motor based on repetitive control is proposed in this paper, in order to realize the precise decoupling of induction motor, compensate the disturbance and reduce the reliance of ADRC controller on its parameters. The novel control method employs repetitive control to improve the ability against disturbance and enhance the control accuracy further. Repetitive control can track and compensate disturbance, and improve the disturbance isolation so that the reliance of ADRC controller on its parameters robustness can be reduced. Simulation and experimental results indicate that the robustness of the proposed optimal ADRC has better robustness than the conventional ADRC when the disturbances occur.