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A modified relay-feedback parameterization of time-delay models: Theory and application

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dc.title A modified relay-feedback parameterization of time-delay models: Theory and application en
dc.contributor.author Pekař, Libor
dc.relation.ispartof International Journal of Mathematical Models and Methods in Applied Sciences
dc.identifier.issn 1998-0140 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2013
utb.relation.volume 7
utb.relation.issue 12
dc.citation.spage 973
dc.citation.epage 983
dc.type article
dc.language.iso en
dc.publisher North Atlantic University Union (NAUN) en
dc.relation.uri http://www.naun.org/main/NAUN/ijmmas/a062001-281.pdf
dc.subject Autotuning en
dc.subject Fourier transform en
dc.subject Heating system en
dc.subject Identification en
dc.subject Matlab/simulink en
dc.subject Numerical optimization en
dc.subject Saturation relay en
dc.subject Time delay systems en
dc.description.abstract The well-known on/off relay-feedback identification test suffers from two imperfections. First, the parameters estimation does not bring a sufficient accuracy; second, a single test enables to quantify only two unknown model parameters. In this paper, two possible approaches dealing with these problems are attacked. Namely, the Autotune Variation Plus (ATV+) procedure introducing an additional artificial delay is utilized for a multiple-points model parameterization, and, the use of a saturation relay and a relay transient experiment with the Discrete Time Fourier Transform (DTFT) aid a better parameters estimation. The novelty of this contribution resides in that these methodologies are utilized with the combination with Linear Time-Invariant Time Delay Systems (LTI TDS) and their models. In our recent papers, theoretical aspects of the techniques were introduced and discussed, separately from other contributions dealing with a laboratory application of the saturation relay based approach. Both, theoretical and practical issues are summarized in this paper in a comprehensive presentation. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1003682
utb.identifier.obdid 43871753
utb.identifier.scopus 2-s2.0-84893059933
utb.source j-scopus
dc.date.accessioned 2014-03-13T16:50:45Z
dc.date.available 2014-03-13T16:50:45Z
utb.contributor.internalauthor Pekař, Libor
utb.fulltext.affiliation Libor Pekař is with the Tomas Bata University in Zlín, Faculty of Applied Informatics, nám. T. G. Masaryka 5555, 76001 Zlín, Czech Republic (corresponding author to provide phone: +420576035161; e-mail: pekar@fai.utb.cz).
utb.fulltext.dates -
utb.fulltext.sponsorship The author kindly appreciates the financial support which was provided by the European Regional Development Fund under the project CEBIA-Tech No. CZ.1.05/2.1.00/03.0089.
utb.fulltext.faculty Faculty of Applied Informatics
utb.fulltext.ou -
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