Causality modeling and diagnosis of large-scale complex systems

This thesis is part of the European project PAPYRUS (7th FWP (Seventh Framework Program) and it concern the developments of models and tools for the analysis of an industrial process in interaction with system performance indicators. Thus, the developments of Plug \& play algorithms for fault diagnosis. More specifically, the first objective of the thesis is to propose models and criteria, which allow, for large complex systems, whether the objectives expressed in terms of performance (cost, dependability, etc.) are achievable. Within the causality modeling system, a transfer entropy based method is proposed to identify the causality model of a system from data. We also focused on the influence of different faults on system performance reachability. The tools used are mainly based on graphical approach analysis in parallel with statistical tools. The second objective concerns the implementation of algorithms for faults diagnosis. A hierarchical fault diagnosis process based on causality model of the system is implemented. This step also allows the evaluation of the system performance. We applied our methods on the PAPYRUS project plant (board machine Stora Enso IMATRA in Finland).

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Source https://theses.hal.science/tel-01750529
Author Faghraoui, Ahmed
Maintainer CCSD
Last Updated May 5, 2026, 15:31 (UTC)
Created May 5, 2026, 15:31 (UTC)
Identifier NNT: 2013LORR0235
Language fr
Rights https://about.hal.science/hal-authorisation-v1/
contributor Centre de Recherche en Automatique de Nancy (CRAN) ; Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)
creator Faghraoui, Ahmed
date 2013-12-11T00:00:00
harvest_object_id e7609d58-444a-4828-82c8-c1480296c11b
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2025-11-04T00:00:00
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