Proposal of a general identification method for fractional-order processes based on the process reaction curve

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dc.contributor.authorGude, Juan José
dc.contributor.authorGarcía Bringas, Pablo
dc.date.accessioned2024-11-15T10:09:29Z
dc.date.available2024-11-15T10:09:29Z
dc.date.issued2022-09
dc.date.updated2024-11-15T10:09:29Z
dc.description.abstractThis paper aims to present a general identification procedure for fractional first-order plus dead-time (FFOPDT) models. This identification method is general for processes having S-shaped step responses, where process information is collected from an open-loop step-test experiment, and has been conducted by fitting three arbitrary points on the process reaction curve. In order to validate this procedure and check its effectiveness for the identification of fractional-order models from the process reaction curve, analytical expressions of the FFOPDT model parameters have been obtained for both situations: as a function of any three points and three points symmetrically located on the reaction curve, respectively. Some numerical examples are provided to show the simplicity and effectiveness of the proposed procedure. Good results have been obtained in comparison with other well-recognized identification methods, especially when simplicity is emphasized. This identification procedure has also been applied to a thermal-based experimental setup in order to test its applicability and to obtain insight into the practical issues related to its implementation in a microprocessor-based control hardware. Finally, some comments and reflections about practical issues relating to industrial practice are offered in this context.en
dc.description.sponsorshipThe authors would like to thank the Basque Government for its partial funding support through the TRUSTIND ELKARTEK R&D (ref. KK-2020/00054) and REMEDY (ref. KK-2021/00091) projectsen
dc.identifier.citationGude, J. J., & García Bringas, P. (2022). Proposal of a General Identification Method for Fractional-Order Processes Based on the Process Reaction Curve. Fractal and Fractional, 6(9). https://doi.org/10.3390/FRACTALFRACT6090526
dc.identifier.doi10.3390/FRACTALFRACT6090526
dc.identifier.issn2504-3110
dc.identifier.urihttps://hdl.handle.net/20.500.14454/1896
dc.language.isoeng
dc.publisherMDPI
dc.rights© 2022 by the authors
dc.subject.otherFractional first-order plus dead-time model
dc.subject.otherFractional-order systems
dc.subject.otherProcess identification
dc.titleProposal of a general identification method for fractional-order processes based on the process reaction curveen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.issue9
oaire.citation.titleFractal and Fractional
oaire.citation.volume6
oaire.licenseConditionhttps://creativecommons.org/licenses/by/4.0/
oaire.versionVoR
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