A closed-loop D-type iterative learning control for electro- hydraulic position servo systems with uncertainties

In this paper a discrete closed-loop D-type iterative learning control (ILC) scheme for the electrohydraulic position servo systems with parameter uncertainties is presented. The conditions which guarantee the convergence of the algorithm are given and the convergence is proved. The simulation results demonstrate the effectiveness of the presented D-type ILC algorithm for the discretization electrohydraulic position servo systems with parameter uncertainties.