A NARX Model Reference Adaptive Control Scheme: Improved Disturbance Rejection Fractional-Order PID Control of an Experimental Magnetic Levitation System

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dc.authoridVassiljeva, Kristina/0000-0002-4178-1267
dc.authoridAlimohammadi, Hossein/0000-0002-8867-8988
dc.authoridAlagoz, Baris Baykant/0000-0001-5238-6433
dc.authoridTepljakov, Aleksei/0000-0002-7158-8484
dc.authoridPetlenkov, Eduard/0000-0003-2167-6280
dc.authorwosidVassiljeva, Kristina/AAC-8226-2021
dc.authorwosidAlimohammadi, Hossein/AAX-5165-2020
dc.authorwosidAlagoz, Baris Baykant/ABG-8526-2020
dc.authorwosidTepljakov, Aleksei/F-1632-2017
dc.authorwosidPetlenkov, Eduard/G-5537-2017
dc.contributor.authorAlimohammadi, Hossein
dc.contributor.authorAlagoz, Baris Baykant
dc.contributor.authorTepljakov, Aleksei
dc.contributor.authorVassiljeva, Kristina
dc.contributor.authorPetlenkov, Eduard
dc.date.accessioned2024-08-04T20:48:54Z
dc.date.available2024-08-04T20:48:54Z
dc.date.issued2020
dc.departmentİnönü Üniversitesien_US
dc.description.abstractReal control systems require robust control performance to deal with unpredictable and altering operating conditions of real-world systems. Improvement of disturbance rejection control performance should be considered as one of the essential control objectives in practical control system design tasks. This study presents a multi-loop Model Reference Adaptive Control (MRAC) scheme that leverages a nonlinear autoregressive neural network with external inputs (NARX) model in as the reference model. Authors observed that the performance of multi-loop MRAC-fractional-order proportional integral derivative (FOPID) control with MIT rule largely depends on the capability of the reference model to represent leading closed-loop dynamics of the experimental ML system. As such, the NARX model is used to represent disturbance-free dynamical behavior of PID control loop. It is remarkable that the obtained reference model is independent of the tuning of other control loops in the control system. The multi-loop MRAC-FOPID control structure detects impacts of disturbance incidents on control performance of the closed-loop FOPID control system and adapts the response of the FOPID control system to reduce the negative effects of the additive input disturbance. This multi-loop control structure deploys two specialized control loops: an inner loop, which is the closed-loop FOPID control system for stability and set-point control, and an outer loop, which involves a NARX reference model and an MIT rule to increase the adaptation ability of the system. Thus, the two-loop MRAC structure allows improvement of disturbance rejection performance without deteriorating precise set-point control and stability characteristics of the FOPID control loop. This is an important benefit of this control structure. To demonstrate disturbance rejection performance improvements of the proposed multi-loop MRAC-FOPID control with NARX model, an experimental study is conducted for disturbance rejection control of magnetic levitation test setup in the laboratory. Simulation and experimental results indicate an improvement of disturbance rejection performance.en_US
dc.description.sponsorshipEstonian Research Council [PRG658]en_US
dc.description.sponsorshipThe work was supported by the Estonian Research Council grant PRG658.en_US
dc.identifier.doi10.3390/a13080201
dc.identifier.issn1999-4893
dc.identifier.issue8en_US
dc.identifier.scopus2-s2.0-85090385875en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.3390/a13080201
dc.identifier.urihttps://hdl.handle.net/11616/99524
dc.identifier.volume13en_US
dc.identifier.wosWOS:000568149200001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMdpien_US
dc.relation.ispartofAlgorithmsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectmulti-loop model reference controlen_US
dc.subjectPID controllersen_US
dc.subjectFOPID retuning controlen_US
dc.subjectdisturbance rejection controlen_US
dc.titleA NARX Model Reference Adaptive Control Scheme: Improved Disturbance Rejection Fractional-Order PID Control of an Experimental Magnetic Levitation Systemen_US
dc.typeArticleen_US

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