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Theses

Estimation de retard dans des conditions expérimentales passives : application à l'identification de bief de rivière

Abstract : This thesis relates to the identification of discrete-time models, and more precisely, to the time-delay estimation. This work is justified by an application to river reaches managed for the hydroelectric energy production. The difficulties lie in the obligation to use data collected in a context of combined feedback/feedforward control carried out by a human operator. Moreover, an approach determining the degree of a posteriori identifiability shows the low identifiability of the time-delay for the available data. In order to mitigate these disadvantages, an original Bayesian identification method, non-supervised and simple to implement, is developed by solving a degeneration problem of a probability distribution. In addition, an applicability study of existing time-delay estimation methods is undertaken by justifying the choices selected. This has led to the generalization of a method based on correlations between inputs and output.
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Magalie Thomassin. Estimation de retard dans des conditions expérimentales passives : application à l'identification de bief de rivière. Autre. Université Henri Poincaré - Nancy 1, 2005. Français. ⟨NNT : 2005NAN10024⟩. ⟨tel-01746912⟩

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