Fractional-order PID design: Towards transition from state-of-art to state-of-use

Amélie Chevalier; Clovis Francis; Cosmin Copot; Clara M Ionescu; Robin De Keyser

doi:10.1016/j.isatra.2018.09.017

Fractional-order PID design: Towards transition from state-of-art to state-of-use

ISA Trans. 2019 Jan:84:178-186. doi: 10.1016/j.isatra.2018.09.017. Epub 2018 Oct 4.

Authors

Amélie Chevalier¹, Clovis Francis², Cosmin Copot³, Clara M Ionescu³, Robin De Keyser³

Affiliations

¹ Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 914, 9052 Gent, Belgium. Electronic address: amelie.chevalier@ugent.be.
² Scientific Research Center in Engineering (CRSI), Faculty of Engineering, Lebanese University, Lebanon.
³ Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 914, 9052 Gent, Belgium.

PMID: 30342816
DOI: 10.1016/j.isatra.2018.09.017

Abstract

This paper presents a new tuning method for fractional-order (FO)PID controllers to simplify current tuning and make FOPID controllers more convenient for industry, i.e. facilitate transition from state-of-art to state-of-use. The number of tuning parameters is reduced from five to three based on popular specification settings for PID controllers without the need for reduced process models which introduce modeling errors. A test batch of 133 simulated processes and two real-life processes are used to test the presented method. A comparative study between the new method and the established CRONE controller, quantifies the performance. The conclusion states that the new method gives fractional controllers with similar performances as the current methods but with a significantly decreased tuning complexity making FOPID controllers more acceptable to industry.

Keywords: CRONE controller; FOPID design; Fractional-order controller; Reduced tuning parameters.