Dynamic linear modeling of a refrigeration process with electronic expansion valve actuator Modélisation dynamique linéaire d'un procédé frigorifique à actionneur de détendeur électronique

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dc.contributor.authorSiqueira Dantas T.S.S.
dc.contributor.authorFranco I.C.
dc.contributor.authorFileti A.M.F.
dc.contributor.authorSilva F.V.
dc.date.accessioned2019-08-20T00:12:13Z
dc.date.available2019-08-20T00:12:13Z
dc.date.issued2017
dc.description.abstract© 2017 Elsevier Ltd and IIRUsually, commercial control solutions for superheat control still use PID controllers as a standard. Although there are several applications of advanced control in refrigeration processes in the literature, there isn't a consensus about the optimal control solution for each system. The implementation of advanced control algorithms ultimately depends on accurate process knowledge in the form of dynamic mathematical models. This study aims to take a first step toward the designing an adaptive stochastic MPC controller for superheat control in an R404 refrigeration cycle with electronic expansion valve by developing stochastic dynamic models of the process. Both time-varying and time-invariant versions of the models are identified. Statistical validation results show whitening of the residuals of the time-invariant models, creating a basis for comparison. The recursive estimation of the time-varying parameters was realized with the Kalman Filter and the Forgetting Factor algorithms. Results of validation tests by simulation show good results, with average output errors between 0.05 and 1.39°C, indicating that the ARMAX with time-varying parameters may be a good presentation for this system.
dc.description.firstpage311
dc.description.lastpage321
dc.description.volume75
dc.identifier.citationDANTAS, T.S.S.; FRANCO, Ivan Carlos; FILETI, A.M.F.; SILVA, F.V.. Dynamic linear modeling of a refrigeration process with electronic expansion valve actuator. International Journal of Refrigeration, v. 75, p. 311-321, 2017.
dc.identifier.doi10.1016/j.ijrefrig.2017.01.014
dc.identifier.issn0140-7007
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1847
dc.relation.ispartofInternational Journal of Refrigeration
dc.rightsAcesso Restrito
dc.subject.otherlanguageARMAX
dc.subject.otherlanguageRefrigeration
dc.subject.otherlanguageStochastic Kalman-Filter
dc.subject.otherlanguageSystem identification
dc.titleDynamic linear modeling of a refrigeration process with electronic expansion valve actuator Modélisation dynamique linéaire d'un procédé frigorifique à actionneur de détendeur électronique
dc.typeArtigo
fei.scopus.citations4
fei.scopus.eid2-s2.0-85012284534
fei.scopus.subjectAdvanced control algorithms
fei.scopus.subjectARMAX
fei.scopus.subjectDynamic mathematical model
fei.scopus.subjectElectronic expansion valves
fei.scopus.subjectOptimal control solution
fei.scopus.subjectStatistical validation
fei.scopus.subjectTime varying parameter
fei.scopus.subjectTime-invariant models
fei.scopus.updated2024-03-04
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85012284534&origin=inward
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