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Architecture et étude d'un système électrique hybride destiné à l'autonomie d'une zone rurale

Abstract : The presented work focuses on the study of the architecture of a hybrid electric system (HES) made of different sources. First, we studied a configuration consisting of photovoltaic, wind, PEM fuel cell as sources and batteries, electrolyser and hydrogen tank as storage elements. Then in a second phase, only hydrogen storage is considered to ensure the electrical autonomy of a rural area in Comoros. The coupling of these different sources aims to improve the performance, the availability of the resulting electrical network, the supply of electricity over much longer periods and, above all, the satisfaction of the uses by operating each source in a reasoned way. First, we have analysed the main components of our system. Then, we established the mathematical models that describe the behaviour of the different parts of our hybrid energy system which is here the formalism used for the modelling. The modelling and simulation of the PV and wind systems use a MPPT control to maximize the delivered power. In the first configuration, the battery charge/discharge process is controlled to stabilize the DC bus voltage. The fuel cell makes the system more durable. It also helps to stabilize the DC bus voltage, in case of too much battery discharge. Thus, the use of a harmonic filter reduces the rate of harmonic distortion. Harmonics are compensated as well than the reactive current component in normal or unbalanced operating conditions. The presented simulation results have illustrated the behaviour of the different components of the HES in transient and steady states. Finally, the proposed system, analysed with the help of HOMER, would be able to provide a solution to the demand of a rural area in the Comoros or in any place suffering of a weak grid by using only hydrogen storage.
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https://hal.univ-lorraine.fr/tel-03226804
Contributor : Bernard Davat Connect in order to contact the contributor
Submitted on : Saturday, May 15, 2021 - 4:58:10 PM
Last modification on : Saturday, October 16, 2021 - 11:16:06 AM

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  • HAL Id : tel-03226804, version 1

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Mariama Said Mohamed. Architecture et étude d'un système électrique hybride destiné à l'autonomie d'une zone rurale. Energie électrique. Université de Lorraine, 2021. Français. ⟨NNT : 2021LORR0044⟩. ⟨tel-03226804⟩

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