Iterative learning feedback control algorithms of PIalpha Dbeta type in process control systems

Abstract

In this paper, a PIalphaD beta type of iterative learning feedback control is proposed for class - fractional linear time invariant system. The learning control scheme comprises two types of control laws: a PDalpha feedback law and a PIalphaDbeta feed-forward control law.A sufficient condition for convergence of a proposed ILC will be given by the theorem and proved.Using feedback loop, the PDalpha controller provides better stability of the system and keeps its state errors within uniform bounds.