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  • 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
  • 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 (en)
  • 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. (cs)
Title
  • One point relay identification experiment based on constant-phase filter
  • Jednobodový reléový identifikační experiment na základě filtru s konstantní fází (cs)
  • One point relay identification experiment based on constant-phase filter (en)
skos:prefLabel
  • One point relay identification experiment based on constant-phase filter
  • Jednobodový reléový identifikační experiment na základě filtru s konstantní fází (cs)
  • One point relay identification experiment based on constant-phase filter (en)
skos:notation
  • RIV/49777513:23520/08:00500011!RIV09-MPO-23520___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(FI-IM3/056)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 384836
http://linked.open...ai/riv/idVysledku
  • RIV/49777513:23520/08:00500011
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • relay identification experiment; constant phase filter; fractional-order integrator (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [1374115BA611]
http://linked.open...v/mistoKonaniAkce
  • Kouty nad Desnou
http://linked.open...i/riv/mistoVydani
  • Pardubice
http://linked.open...i/riv/nazevZdroje
  • Process Control 2008
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Schlegel, Miloš
  • Čech, Martin
  • Mertl, Jiří
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • Univerzita Pardubice
https://schema.org/isbn
  • 978-80-7395-077-4
http://localhost/t...ganizacniJednotka
  • 23520
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