A comparative study of two tuning rules for delayed compensation controllers

Abstract

The focus of this contribution is on the use of two controller tuning techniques for delayed controllers designed by an algebraic approach for linear time-invariant time delay systems. The well-known Chien-Hrones-Reswick (CHR) method and the Equalization Method (EM) are used. The tuning procedure is applied to compensation-type controllers that include internal delays, and hence there can be found a link to the habitual Smith predictor structure. This study considers two typical representatives of controlled plants with both input-output and internal delays; namely, the first-and second-order (of derivatives) systems are taken. Numerical comparative experiments are presented and discussed. © 2018 The Authors, published by EDP Sciences.