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Gestion optimisée de l'énergie électrique d'un groupe électrogène hybride à pile à combustible

Abstract : The study focuses on the power distribution management between a fuel cells stack and a supercapacitor pack in order to ensure the power demand in a hybrid vehicle. The goal is to minimize the hydrogen consumption on a given cycle. The problem is formulated as a global optimization problem under constraints. In a first approach, the system is described with a discretized dynamic equation and a dynamic programming algorithm is applied. A second approach is to minimize the Hamiltonian after having approached the cost criterion by a polynomial function. These methods require a priori knowledge of the power demand profile and are therefore considered as offline optimization methods. For an online energy management, we applied a decision making system based on fuzzy rules. Inputs and output membership functions of the fuzzy system are optimized using a genetic algorithm. In order to implement the outlined strategies, efficiency of the elements of the power train formed by the fuel cells stack and auxiliaries, the storage element and the static converters is characterized.
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Submitted on : Monday, February 21, 2011 - 2:41:51 PM
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  • HAL Id : tel-00567577, version 1

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Walid Hankache. Gestion optimisée de l'énergie électrique d'un groupe électrogène hybride à pile à combustible. Energie électrique. Institut National Polytechnique de Toulouse - INPT, 2008. Français. ⟨tel-00567577⟩

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