Design of fractional order controllers for TITO systems

Mahdouani, Emna Ouhibi; Hariz, Maher Ben; Bouani, Faouzi

doi:10.1109/scc47175.2019.9116167

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Fractional order differential equations more accurately represent the model of a dynamic system [14]. In this direction, various fractional order models have been developed for TITO systems [15]- [17]. Although the fractional order calculus has the advantage of yielding more accurate modeling for dynamic systems, analysis and control of such systems can be quite difficult due to their complexity.…”

Section: Introductionmentioning

confidence: 99%

“…A fractional order IMC (Internal Model Control) methodology, which exhibits robust performance for set point tracking and disturbance rejection, was suggested for FOTITO systems [15]. In another study, fixed low order decentralized controllers were given for FOTITO systems by using optimization according to CRA (Characteristic Ratio Assignment) method [17]. There is a need for more research and development of control algorithms for FOTITO control systems which allow to obtain better and more accurate mathematical models.…”

Section: Introductionmentioning

confidence: 99%

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Coefficient Diagram Method Based Decentralized Controller for Fractional Order TITO Systems

Deniz

GÜNAY

2022

Balkan Journal of Electrical and Computer Engineering

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Fractional calculus has gained increasing attention from researchers because of providing accurate modelling and flexible controller design in control applications. More research to design controllers for Fractional Order Two-Input Two-Output (FOTITO) systems, which inherently have certain difficulties, is needed when the studies on such control applications are reviewed. In this study, Coefficient Diagram Method (CDM) based decentralized controllers are designed for FOTITO systems. To this end, integer order approximate models of FOTITO systems are obtained and decoupled into two subsystems by using simplified and inverted decoupling configurations. The resulting higher-order approximate subsystem transfer functions are reduced by a model reduction method to facilitate CDM-based decentralized controllers design. Then, CDM-based decentralized controllers are designed by using each subsystem, which enable to control the FOTITO system. Simulation results for two different FOTITO systems, one of which is time delayed, show that the proposed approach exhibits successful performance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%