Fractional-order PID design: Towards transition from state-of-art to state-of-use. (January 2019)

• Record Type: Journal Article
• Authors: Chevalier, Amélie; Francis, Clovis; Copot, Cosmin; Ionescu, Clara M.; De Keyser, Robin
• Is Part Of: ISA transactions. Volume 84(2019)
• Page Start: 178
• Page End: 186
• Publication Date: 2019-01
• Subjects: 00-01 -- 99-00; Fractional-order controller -- FOPID design -- Reduced tuning parameters -- CRONE controller; Engineering instruments -- Periodicals; Engineering instruments; Periodicals; Electronic journals; 629.805
• DOI: 10.1016/j.isatra.2018.09.017
• Languages: English
• ISSNs: 0019-0578

Abstract

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. Highlights: A simplified tuning method for FOPID is proposed. The amount of tuning parameters for FOPID controllers is reduced from 5 to 3. The performance of the resulting controllers is comparable to the CRONE controller. Reduced tuning complexity makes FOPID more acceptable to industry.