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Vers une conduite intégrée des procédés industriels : application à un système de centrifugation

Abstract : In the design of control systems for complex industrial processes there are needs that cannot be successfully addressed by the existing conventional control laws. In certain situations, the control system must exhibit a degree of autonomy in order to ensure continuity in the task for which it has been designed. In this work, a new approach for the functional architecture of a control system is proposed. The goal of this architecture is to increase the industrial processes autonomy by integrating in the control system the four following functional modules : control functions, knowledge base, inference mechanisms and man-machine interface and communications. Chapter 2 is dedicates to the study of the centrifugation process. The global behaviour is described by an oriented-signed graph taking into account the influence of the different phenomena. Chapter 3 deals with the problem of data-based learning systems. Different learning approaches, such as classification, pattern recognition and regression are presented and applied to the system. The last part of the chapter is devoted to the Takagi-Sugeno type fuzzy models. In chapter 4, the problems of monitoring, fault diagnosis and accomodation are treated. The dualty between parity space approach and principal component analysis (PCA) for fault detection and isolation is shown. In the last part of the chapter, the principles of fault accomodation are exposed and a specific method based on the computation of the faulty system parameters is applied. Finally, the procedure which leads to the integration of the functions to the control system is presented.
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Theses
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http://docnum.univ-lorraine.fr/prive/SCD_T_2000_0020_DE_CUYPERE.pdf
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https://hal.univ-lorraine.fr/tel-01746425
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Submitted on : Thursday, March 29, 2018 - 10:37:30 AM
Last modification on : Monday, January 11, 2021 - 11:42:18 AM

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  • HAL Id : tel-01746425, version 1

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Peter de Cuypere. Vers une conduite intégrée des procédés industriels : application à un système de centrifugation. Autre. Université Henri Poincaré - Nancy 1, 2000. Français. ⟨NNT : 2000NAN10020⟩. ⟨tel-01746425⟩

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