Abstract:Aiming at the problem of high-precision control of the angle of attack controlled by dual motors in the lift wing of high-speed train, a new control strategy based on an improved active disturbance rejection controller is proposed. This strategy improves the position loop and feeds the position error in the cross-coupling structure back to the current loop to achieve high-precision control, so as to solve the problems of hysteresis and weak anti-disturbance ability of the high-speed train lift wing system in practice. The fast response ability, anti-disturbance ability and motor synchronization effect of this method are verified by MATLAB/Simulink simulation. The simulation results show that under the condition of different load disturbances, this method can greatly improve the response speed of the system, and its anti-disturbance ability and synchronization effect are excellent, which can help high-speed train lift wing achieve the high-precision angle of attack transformation.