Nonlinear high-gain observers with integral action: Application to bioreactors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F11%3A00378927" target="_blank" >RIV/67985556:_____/11:00378927 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/ICEEE.2011.6106611" target="_blank" >http://dx.doi.org/10.1109/ICEEE.2011.6106611</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICEEE.2011.6106611" target="_blank" >10.1109/ICEEE.2011.6106611</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nonlinear high-gain observers with integral action: Application to bioreactors

Popis výsledku v původním jazyce

This paper deals with the problem of estimating the states in nonlinear systems with parameters that are not precisely knwon through the implementation of proportional nonlinear high gain observers with additional integral action. It is known that non-linear observers (NL-P) show excellent results in the estimation of state variables but these depend heavily on precise knowledge of model parameters, this is not always possible because in many process the parameters may suffer sudden shifts as in the biological processes, which in turn will certainly broke the asymptotical convergence observer property. We propose the addition of a integral action in order to deal with possible change of parameters. In this work it is showed that the so called nonlinearintegral high gain observers (NL-PI) are able to cancel the dynamical disturbances due to parameter.changes. We studied the substrate estimation in a wastewater treatment bioreactor.

Název v anglickém jazyce

Nonlinear high-gain observers with integral action: Application to bioreactors

Popis výsledku anglicky

This paper deals with the problem of estimating the states in nonlinear systems with parameters that are not precisely knwon through the implementation of proportional nonlinear high gain observers with additional integral action. It is known that non-linear observers (NL-P) show excellent results in the estimation of state variables but these depend heavily on precise knowledge of model parameters, this is not always possible because in many process the parameters may suffer sudden shifts as in the biological processes, which in turn will certainly broke the asymptotical convergence observer property. We propose the addition of a integral action in order to deal with possible change of parameters. In this work it is showed that the so called nonlinearintegral high gain observers (NL-PI) are able to cancel the dynamical disturbances due to parameter.changes. We studied the substrate estimation in a wastewater treatment bioreactor.

Druh

D - Stať ve sborníku

CEP obor

BC - Teorie a systémy řízení

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 2011 8th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE 2011)

ISBN

978-1-4577-1011-7

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

IEEE

Místo vydání

Merida City

Místo konání akce

Merida City

Datum konání akce

26. 10. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—