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Due to a lack of on-line reliable sensors, the measurement of biological variables such as biomass concentration and its specific growth rate, is not possible; this fact can be a difficulty, mainly when considering state feedback control problems. The aim of this paper consists of designing an estimator of biological variables and parameters in the case of a nonlinear distributed parameter bioreactor. By applying an orthogonal collocation method, the distributed parameter model is transformed into a lumped parameter model. Then, a joint estimator of time-varying parameters and state variables is designed by using asymptotic stability properties. Simulation runs show the feasibility and the robustness of the estimator designed for this nonlinear process.
Czasopismo
Rocznik
Tom
Strony
93--110
Opis fizyczny
Bibliogr. 12 poz., tab., wykr.
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autor
autor
- Laboratoire d'Analyse et Controle des Systemes Ecole Nationale d'Ingenieurs de Tunis, Tunisia
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Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BSW9-0007-1371