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Model structure simplification of a biological reactor

Abstract : This article proposes an analytical method for decomposing a dynamic nonlinear system into a multiple model form in order to reduce its complexity and to study more easily identification, stability analysis and controller design problems. The majority of existing methods are order reduction based techniques, which come with an information loss of the initial system, whereas the method proposed here avoids this particular loss. The multiple model constitutes an efficient tool to represent nonlinear systems. These are decomposed into several linear time invariant systems (LTI) which are weighted and aggregated that allows to benefit from important analysis tools. This method is applied to a simplified activated sludge reactor model.
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https://hal.archives-ouvertes.fr/hal-00977525
Contributor : José Ragot Connect in order to contact the contributor
Submitted on : Friday, April 11, 2014 - 11:33:49 AM
Last modification on : Thursday, November 25, 2021 - 10:56:10 AM
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Anca Maria Nagy, Gilles Mourot, Benoît Marx, Georges Schutz, José Ragot. Model structure simplification of a biological reactor. 16th IFAC Symposium on System Identification, SYSID'09, Jul 2009, Saint Malo, France. pp.CDROM. ⟨hal-00977525⟩

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