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Theses

Contrôle des procédés représentés par des équations aux dérivées partielles

Abstract : This work aims to control the processes represented by partial differential equations. Two processes were considered. The first process is a batch crystallization process. The aim of the control is to generate a crystal size distribution (CSD) with an appropriate mean size. First, we used a high gain cascade observer to estimate this average size using only the crystallizer temperature and solute concentration. Then, different scenarios were tested to compare the performance of the different structures of the control system without a model. The second process treated is a lactide polymerization process. This reaction is very sensitive to impurities. So, two control strategies were proposed to restore the nominal conditions in case of drift, which are the dynamic optimization and predictive control
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https://tel.archives-ouvertes.fr/tel-02537810
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Submitted on : Thursday, April 9, 2020 - 9:06:10 AM
Last modification on : Friday, August 21, 2020 - 6:08:18 AM

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  • HAL Id : tel-02537810, version 1

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Nawel Afsi. Contrôle des procédés représentés par des équations aux dérivées partielles. Automatique. Université de Lyon; École nationale d'Ingénieurs de Monastir (Tunisie), 2020. Français. ⟨NNT : 2020LYSE1033⟩. ⟨tel-02537810⟩

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