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Statements

Subject Item
n2:RIV%2F70883521%3A28140%2F11%3A43865972%21RIV12-MSM-28140___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Linear time-invariant time-delay systems (LTI-TDS) constitute a widespread family of plants and systems, not only limited to industrial ones. They can be represented by Laplace transfer functions in the form of fractions of so-called quasipolynomials. Direct controller design for LTI-TDS based on such models is mostly rather intricate. Many approaches require a rational approximation of the transfer function. In this contribution, description and comparison of some selected easy-handling rational approximations of exponential elements in LTI-TDS transfer functions is presented. Namely, Padé approximation, shift operator approximations and Fourier analysis based method are introduced. Unlike traditional concept which is well examined, internal (state) delays are considered as well here. A program testing interface in Matlab-Simulink environment is developed and some study cases are presented by applying the application. Linear time-invariant time-delay systems (LTI-TDS) constitute a widespread family of plants and systems, not only limited to industrial ones. They can be represented by Laplace transfer functions in the form of fractions of so-called quasipolynomials. Direct controller design for LTI-TDS based on such models is mostly rather intricate. Many approaches require a rational approximation of the transfer function. In this contribution, description and comparison of some selected easy-handling rational approximations of exponential elements in LTI-TDS transfer functions is presented. Namely, Padé approximation, shift operator approximations and Fourier analysis based method are introduced. Unlike traditional concept which is well examined, internal (state) delays are considered as well here. A program testing interface in Matlab-Simulink environment is developed and some study cases are presented by applying the application.
dcterms:title
Rational Approximations for Time-Delay Systems: Case Studies Rational Approximations for Time-Delay Systems: Case Studies
skos:prefLabel
Rational Approximations for Time-Delay Systems: Case Studies Rational Approximations for Time-Delay Systems: Case Studies
skos:notation
RIV/70883521:28140/11:43865972!RIV12-MSM-28140___
n17:predkladatel
n18:orjk%3A28140
n3:aktivita
n11:Z n11:P
n3:aktivity
P(ED2.1.00/03.0089), Z(MSM7088352102)
n3:dodaniDat
n12:2012
n3:domaciTvurceVysledku
n16:1717693 n16:6736971
n3:druhVysledku
n23:D
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
225736
n3:idVysledku
RIV/70883521:28140/11:43865972
n3:jazykVysledku
n4:eng
n3:klicovaSlova
Time-delay systems, rational approximation, Padé approximation, Laguerre shift, Kautz shift, Fourier analysis
n3:klicoveSlovo
n5:Time-delay%20systems n5:rational%20approximation n5:Laguerre%20shift n5:Fourier%20analysis n5:Kautz%20shift n5:Pad%C3%A9%20approximation
n3:kontrolniKodProRIV
[B30381C505E2]
n3:mistoKonaniAkce
Catania
n3:mistoVydani
Venice
n3:nazevZdroje
Mathematical Methods and Techniques in Engineering and Environmental Science
n3:obor
n20:BC
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n13:ED2.1.00%2F03.0089
n3:rokUplatneniVysledku
n12:2011
n3:tvurceVysledku
Pekař, Libor Kurečková, Eva
n3:typAkce
n10:WRD
n3:zahajeniAkce
2011-11-03+01:00
n3:zamer
n6:MSM7088352102
s:numberOfPages
6
n8:hasPublisher
WSEAS Press (IT)
n21:isbn
978-1-61804-046-6
n22:organizacniJednotka
28140