A nonlinear observer for an activated sludge wastewater treatment process
| Autor: | B. Boulkroune, Michel Zasadzinski, Mohamed Darouach, S. Gille |
|---|---|
| Přispěvatelé: | Centre de Recherche en Automatique de Nancy (CRAN), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Lorraine (INPL)-Université Henri Poincaré - Nancy 1 (UHP), Laboratoire des Technologies Industrielles (LTI), Centre de Recherche Public Henri-Tudor [Luxembourg] (CRP Henri-Tudor) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Lyapunov function
0209 industrial biotechnology Observer (quantum physics) Stability (learning theory) Linear matrix inequalities 02 engineering and technology State (functional analysis) 010501 environmental sciences Lipschitz continuity 01 natural sciences 6. Clean water Data modeling [SPI.AUTO]Engineering Sciences [physics]/Automatic symbols.namesake Nonlinear system 020901 industrial engineering & automation Nonlinear observer Control theory activated sludge wastewater treatment process symbols State observer 0105 earth and related environmental sciences Mathematics |
| Zdroj: | American Control Conference, ACC 2009 American Control Conference, ACC 2009, Jun 2009, St Louis, Missouri, United States. pp.1027-1033, ⟨10.1109/ACC.2009.5160499⟩ ACC |
| DOI: | 10.1109/ACC.2009.5160499⟩ |
| Popis: | International audience; This paper treats the problem of estimating simultaneously the state and the unknown inputs of a class of nonlinear discrete-time systems. An observer design method for nonlinear Lipschitz discrete-time systems is proposed. By assuming that the linear part of this class of systems is time-varying, the state estimation problem of nonlinear system is transformed into a state estimation problem for LPV system. The stability analysis is performed using a Lyapunov function that leads to the solvability of linear matrix inequalities (LMIs). Performances of the proposed observer are shown through the application to an activated sludge process model. |
| Databáze: | OpenAIRE |
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