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ON-LINE MONITORING AND CONTROL OF NON-LINEAR SYSTEMS VIA CONTINUOUS-DISCRETE OBSERVERS
Carlos-Manuel Astorga-Zaragoza*,1 Sami Othman**
Hassan Hammouri**
* Centro Nacional de Investigación y Desarrollo Tecnológico.
Interior Internado Palmira s/n, Col. Palmira, A.P. 5-164,
C.P. 62050, Cuernavaca, Mor., México
** Laboratoire d’Automatique et de Génie des Procédés. Bât
G308, Université Claude Bernard Lyon 1, 43 boulevard du 11
novembre 1918, 69622 Villeurbanne Cedex, France.
In this paper, a continuous-discrete observer is proposed for a class of non-linear systems. One of the main interests of this observer is that it can be used to accurately estimate certain parameters for which one usually requires a model. It has been applied to a solution copolymerization reactor, and validated in simulation for the case of a semi-batch vinyl acetate (VAc) and butyl acrylate (BuA) reaction. The output of the observer is the used to control the cumulative copolymer composition.
Keywords: State observers, nonlinear systems, continuous-discrete systems, nonlinear control
Session slot T-We-A11: Process Identification and Estimation/Area code 7a : Chemical Process Control
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