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Digital control of unstable and integrating Time-delay processes

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dc.title Digital control of unstable and integrating Time-delay processes en
dc.contributor.author Bobál, Vladimír
dc.contributor.author Chalupa, Petr
dc.contributor.author Dostál, Petr
dc.contributor.author Kubalčík, Marek
dc.relation.ispartof International Journal of Circuits, Systems and Signal Processing
dc.identifier.issn 1998-4464 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2014
utb.relation.volume 8
dc.citation.spage 424
dc.citation.epage 432
dc.type article
dc.language.iso en
dc.publisher North Atlantic University Union (NAUN)
dc.relation.uri http://naun.org/cms.action?id=7621
dc.subject Digital control en
dc.subject Integrating process en
dc.subject LQ control en
dc.subject Polynomial approach en
dc.subject Simulation of control loops en
dc.subject Smith predictor en
dc.subject Time-delay en
dc.subject Unstable process en
dc.description.abstract Time-delay (dead time) is very often encountered in various technical systems, such as electric, pneumatic and hydraulic networks, chemical processes, long transmission lines, robotics, etc. Time-delays are mainly caused by the time required to transport mass, energy or information, but they can also be caused by processing time or accumulation. A part of time-delay systems can be unstable or have integrating properties. Typical examples of such processes are e.g. pumps, liquid storing tanks, distillation columns or some types of chemical reactors. This paper deals with a design of algorithms for digital control of the unstable and integrating time-delay processes using one suitable modification of the Smith Predictor (SP). This digital modification of the Smith Predictor is based on Linear Quadratic (LQ) method. A minimization of the quadratic criterion is realized using spectral factorization. The designed algorithms have universal usage; they are suitable for control of stable, non-minimum phase, unstable and integrating time-delay processes. The main contribution of this paper is design and simulation verification of this Smith Predictor for control of the unstable and integrating processes, because classical continuous-time Smith Predictors are not suitable for control of such processes. The designed algorithms for control of individual processes influenced by external disturbance were verified. The program system MATLAB/SIMULINK was used for simulation verification of designed algorithms. © 2014 North Atlantic University Union. All rights reserved. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1005653
utb.identifier.obdid 43872722
utb.identifier.scopus 2-s2.0-84938691988
utb.source j-scopus
dc.date.accessioned 2015-10-19T08:16:59Z
dc.date.available 2015-10-19T08:16:59Z
utb.contributor.internalauthor Bobál, Vladimír
utb.contributor.internalauthor Chalupa, Petr
utb.contributor.internalauthor Dostál, Petr
utb.contributor.internalauthor Kubalčík, Marek
utb.fulltext.affiliation V. Bobál, P. Chalupa, P. Dostál, M. Kubalčík Department of Process Control, Faculty of Applied Informatics, Tomas Bata University in Zlin, Nad Stranemi 4511, 760 05 Zlin, Czech Republic (e-mails: bobal@fai.utb.cz, chalupa@fai.utb.cz, dostalp@fai.utb.cz, kubalcik@fai.utb.cz).
utb.fulltext.dates received March 14, 2014
utb.fulltext.faculty Faculty of Applied Informatics
utb.fulltext.faculty Faculty of Applied Informatics
utb.fulltext.faculty Faculty of Applied Informatics
utb.fulltext.faculty Faculty of Applied Informatics
utb.fulltext.ou Department of Process Control
utb.fulltext.ou Department of Process Control
utb.fulltext.ou Department of Process Control
utb.fulltext.ou Department of Process Control
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