Analysis of performance indicators for tuning non-integer order controllers

Abstract

Tuning non-integer order controllers using parametric optimization remains a subject of ongoing research. One of the areas of focus concerns analysis of performance indicators ensuring desired behaviour. In this paper we analyze linear, quadratic and quartic performance indicators as tools for finding parameters of PDα and PIγ controllers in RC ladder system of fourth order. Proposed optimization method uses LIRA approximation method and ensures the stability of non-integer closed-loop system.