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Statements

Subject Item
n2:RIV%2F49777513%3A23520%2F08%3A00500011%21RIV09-MPO-23520___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Using standard relay identification methods, one obtains a critical frequency response point with the phase shift $-180$ degrees. Such phase is not optimal for consequential PI(D) controller design especially when there is no additional knowledge about the process (e.g. static gain). Currently, an adaptive filter is used to get a frequency response sample with different phase shift. Adaptive filter parameters are tuned during the identification experiment. Unfortunately, the adaptation makes the experiment more time consuming. This paper presents a new low-order filter providing arbitrary constant phase at about three decades. Such filter embedded into relay tuner shortens the experiment significantly. Further, the paper discusses several implementation aspect. The authors believe that presented approach may lead to improvement of existing relay autotuners Tradičně je z reléového experimentu získáván bod s fázovým zpožděním -180 stupňů. Tato fáze ale nemusí být optimální, zejména když neznáme statické zesílení systému. Článek popisuje filtr s konstatní fází, pomocí kterého můžeme identifikovat bod s libovolným fázovým zpožděním. Díky tomuto filtru mohou být vylepšeny stávající reléové tunery. Using standard relay identification methods, one obtains a critical frequency response point with the phase shift $-180$ degrees. Such phase is not optimal for consequential PI(D) controller design especially when there is no additional knowledge about the process (e.g. static gain). Currently, an adaptive filter is used to get a frequency response sample with different phase shift. Adaptive filter parameters are tuned during the identification experiment. Unfortunately, the adaptation makes the experiment more time consuming. This paper presents a new low-order filter providing arbitrary constant phase at about three decades. Such filter embedded into relay tuner shortens the experiment significantly. Further, the paper discusses several implementation aspect. The authors believe that presented approach may lead to improvement of existing relay autotuners
dcterms:title
One point relay identification experiment based on constant-phase filter Jednobodový reléový identifikační experiment na základě filtru s konstantní fází One point relay identification experiment based on constant-phase filter
skos:prefLabel
Jednobodový reléový identifikační experiment na základě filtru s konstantní fází One point relay identification experiment based on constant-phase filter One point relay identification experiment based on constant-phase filter
skos:notation
RIV/49777513:23520/08:00500011!RIV09-MPO-23520___
n5:aktivita
n19:P
n5:aktivity
P(FI-IM3/056)
n5:dodaniDat
n8:2009
n5:domaciTvurceVysledku
n9:7237669 n9:6398790 n9:2296438
n5:druhVysledku
n16:D
n5:duvernostUdaju
n20:S
n5:entitaPredkladatele
n14:predkladatel
n5:idSjednocenehoVysledku
384836
n5:idVysledku
RIV/49777513:23520/08:00500011
n5:jazykVysledku
n13:eng
n5:klicovaSlova
relay identification experiment; constant phase filter; fractional-order integrator
n5:klicoveSlovo
n10:relay%20identification%20experiment n10:constant%20phase%20filter n10:fractional-order%20integrator
n5:kontrolniKodProRIV
[1374115BA611]
n5:mistoKonaniAkce
Kouty nad Desnou
n5:mistoVydani
Pardubice
n5:nazevZdroje
Process Control 2008
n5:obor
n18:BC
n5:pocetDomacichTvurcuVysledku
3
n5:pocetTvurcuVysledku
3
n5:projekt
n6:FI-IM3%2F056
n5:rokUplatneniVysledku
n8:2008
n5:tvurceVysledku
Schlegel, Miloš Čech, Martin Mertl, Jiří
n5:typAkce
n21:EUR
n5:zahajeniAkce
2008-06-12+02:00
s:numberOfPages
9
n4:hasPublisher
Univerzita Pardubice
n15:isbn
978-80-7395-077-4
n12:organizacniJednotka
23520