Disturbance rejection FOPID controller design in v-domain

• Published in: Journal of advanced research Vol. 25; pp. 171 - 180
• Main Authors: Tufenkci, Sevilay, Senol, Bilal, Alagoz, Baris Baykant, Matušů, Radek
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2020; Elsevier
• Subjects: Computer aided optimal controller design; Disturbance rejection control; FOPID controller; Fractional order control system; Stability; FOPID controller; Computer aided optimal controller design; Stability; Fractional order control system; Disturbance rejection control
• ISSN: 2090-1232; 2090-1224
• DOI: 10.1016/j.jare.2020.03.002

[Display omitted] •This study introduces a v-domain design scheme for optimal FOPID controllers.•The purposed method is based on minimum angle system pole placement in v-plane.•Multi-objective genetic algorithm is used for controller coefficient optimization.•Disturbance rejection FOPID controller design examples are illustrated. Due to the adverse effects of unpredictable environmental disturbances on real control systems, robustness of control performance becomes a substantial asset for control system design. This study introduces a v-domain optimal design scheme for Fractional Order Proportional-Integral-Derivative (FOPID) controllers with adoption of Genetic Algorithm (GA) optimization. The proposed design scheme performs placement of system pole with minimum angle to the first Riemann sheet in order to obtain improved disturbance rejection control performance. In this manner, optimal placement of the minimum angle system pole is conducted by fulfilling a predefined reference to disturbance rate (RDR) design specification. For a computer-aided solution of this optimal design problem, a multi-objective controller design strategy is presented by adopting GA. Illustrative design examples are demonstrated to evaluate performance of designed FOPID controllers.