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Sur la résolution des problèmes inverses pour les systèmes dynamiques non linéaires. Application à l’électrolocation, à l’estimation d’état et au diagnostic des éoliennes

Abstract : This thesis mainly concerns the resolution of dynamic inverse problems involvingnonlinear dynamical systems. A set of techniques based on the use of trains of pastmeasurements saved on a sliding window was developed. First, the measurements areused to generate a family of graphical signatures, which is a classification tool, in orderto discriminate between different values of variables to be estimated for a given nonlinearsystem. This technique was applied to solve two problems : the electrolocationproblem of a robot with electrical sense and the problem of state estimation in nonlineardynamical systems. Besides these two applications, receding horizon inversion techniquesdedicated to the fault diagnosis problem of a wind turbine proposed as an internationalbenchmark were developed. These techniques are based on the minimization of quadraticcriteria based on knowledge-based models.
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Oumayma Omar. Sur la résolution des problèmes inverses pour les systèmes dynamiques non linéaires. Application à l’électrolocation, à l’estimation d’état et au diagnostic des éoliennes. Autre. Université de Grenoble, 2012. Français. ⟨NNT : 2012GRENT083⟩. ⟨tel-00872892⟩

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