Iterative learning control of electro-hydraulic position servo system

This paper designed a feedback-feedforward iterative learning controller aim at the model of flight simulator six degrees of freedom motion platform, the controller combined iterative learning control arithmetic with traditional PID control arithmetic, the feedforward part of which was used to improve control precision and the feedback part was used to improve the robustness of the system. And then it proved the constringency condition and used Simulink to simulate. Simulation analysis and practice application show that the position control system of hydraulic motion platform based on iterative learning control arithmetic had the character of higher precision, better stability and stronger robustness, which realized the precision position control of hydraulic motion platform.