Feedback-feedforward iterative learning control for fractional order uncertain time delay system–PD alpha type

Abstract

A feedback-feedforward PDalpha type iterative learning control (ILC) of fractional order uncertain time delay system is considered. Particularly, we discuss fractional order time delay systems in state space form with uncertain bounded constant time delay. Sufficient conditions for the convergence of a proposed PDalpha type of learning control algorithm for a class of fractional state space time delay system are given in time domain. Finally, a simulation example shows the feasibility and effectiveness of the approach.