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Statements

Subject Item
n2:RIV%2F49777513%3A23520%2F07%3A00000015%21RIV08-MPO-23520___
rdf:type
n20:Vysledek skos:Concept
dcterms:description
V posledních letech se objevila celá řada aplikací integrálů a derivací neceločíselných řádů v automatickém řízení. Jedna z perspektivních je ideální tvarování Nyquistovy křivky pomocí filtrů nizkých řádů. Výsledná regulační smyčka pak dosahuje velkou robustnost vůči změnám zesílení In the last decades, several interesting applications of fractional calculus appeared in the process control field. The usage of fractional elements for description of ideal Bode's control loop is one of the most promising. In authors' previous work, the concept of model set suitable for description of typical industrial processes was presented. In this paper, the problem of reaching the ideal Bode's shape for several process models arising from the model set is considered. In contrast to the other known approaches, the exactly computed filter frequency response is approximated. This approximation is done using standard MATLAB constrained multivariable optimization. The comparison with other methods shows that the direct approximation leads to the significant reduction of the filter order. Arising filters can be useful especially for processes with large gain variations. In the last decades, several interesting applications of fractional calculus appeared in the process control field. The usage of fractional elements for description of ideal Bode's control loop is one of the most promising. In authors' previous work, the concept of model set suitable for description of typical industrial processes was presented. In this paper, the problem of reaching the ideal Bode's shape for several process models arising from the model set is considered. In contrast to the other known approaches, the exactly computed filter frequency response is approximated. This approximation is done using standard MATLAB constrained multivariable optimization. The comparison with other methods shows that the direct approximation leads to the significant reduction of the filter order. Arising filters can be useful especially for processes with large gain variations.
dcterms:title
Ideal Bode's control loop shaping with respect to the model set approach Ideal Bode's control loop shaping with respect to the model set approach Ideálni Bodeho tvarování regulační smyčky
skos:prefLabel
Ideálni Bodeho tvarování regulační smyčky Ideal Bode's control loop shaping with respect to the model set approach Ideal Bode's control loop shaping with respect to the model set approach
skos:notation
RIV/49777513:23520/07:00000015!RIV08-MPO-23520___
n3:strany
1-6
n3:aktivita
n12:P
n3:aktivity
P(FI-IM3/056)
n3:dodaniDat
n9:2008
n3:domaciTvurceVysledku
n7:6398790 n7:2296438
n3:druhVysledku
n15:D
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
425266
n3:idVysledku
RIV/49777513:23520/07:00000015
n3:jazykVysledku
n16:eng
n3:klicovaSlova
Ideal Bode's control loop; fractional calculus; fractional-order integrator, model set; Nyquist plot shaping; iso-damping property.
n3:klicoveSlovo
n4:fractional-order%20integrator n4:iso-damping%20property. n4:model%20set n4:Ideal%20Bode%27s%20control%20loop n4:Nyquist%20plot%20shaping n4:fractional%20calculus
n3:kontrolniKodProRIV
[0B5DBF431059]
n3:mistoKonaniAkce
Štrbské Pleso, Slovensko
n3:mistoVydani
Bratislava
n3:nazevZdroje
Process Control '07
n3:obor
n8:JB
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n14:FI-IM3%2F056
n3:rokUplatneniVysledku
n9:2007
n3:tvurceVysledku
Čech, Martin Schlegel, Miloš
n3:typAkce
n17:EUR
n3:zahajeniAkce
2007-01-01+01:00
s:numberOfPages
6
n11:hasPublisher
Slovenská technická univerzita v Bratislave
n21:isbn
978-80-227-2677-1
n10:organizacniJednotka
23520