Development of the tuning formula for unstable first order processes with time delay

Abstract

This paper presents a new controller design method for first order unstable processes with time delay. First, the conditions that guarantee internal stability of closed-loop system are investigated, then analytic rules for the proposed controllers tuning are developed. The tuning rules are simple and result in good closed-loop behavior. Examples are given to illustrate the simplicity and superiority of the proposed method compared with some existing ones.