Architecture et gestion d'un réseau continu maillé haute-tension pour l'aéronautique

Abstract : As the aircraft fuel consumption needs more efficient systems, electrical distribution becomes a favoured way in satisfying those needs. In this context, the “more electrical aircraft” notion implies to deeply refund distribution means. High Voltage Direct Current - HVDC - distribution helps in going this way. A general description of civil aircraft embedded systems is given in this document. Advantages and drawbacks of energetic vectors are described too, allowing a better comprehension of possible improvements due to system electrification. Therefore, the HVDC deployment can lead to new problems, particularly in quality and stability domains. In order to take into account these problems, we propose a new distribution architecture in which equipments are interconnected through power distribution centres, which ones are interconnected through power flow controller equipments. This new architecture is described as a meshed distribution network. Two kinds of equipment are proposed to control the electrical power flow: DCPFC - for Direct Current Power Flow Controller - and MAPFC - Mixed function for Actuation Power Flow Control. As a result, a specific power management is needed. Equipment operating modes and power to transfer references have to be determined. In a first step, a graph based modelling of the electrical network is done, resulting in a generic algorithm which permits to determine network structural equations. In a second step, two algorithms control the network: - Discrete quantities are regulated by an expert system based on a rule set; - Continuous quantities are managed through a flow research algorithm based on the graph modelling; The validation of these concepts is realised through electrical simulations of the whole meshed network. Then, an experimental test bench validates the theoretical principles and allows the operation of equipments and meshed network in multiple configurations. Finally, concepts are extrapolated in an electrical network respecting aeronautic constraints. Those constraints are highlighted at equipment level and network level.
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Theses
Electric power. Institut National Polytechnique de Toulouse - INPT, 2009. French


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Contributor : Cécile Daguillanes <>
Submitted on : Monday, January 10, 2011 - 2:58:03 PM
Last modification on : Thursday, January 13, 2011 - 12:36:04 PM

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  • HAL Id : tel-00554223, version 1

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C. Baumann. Architecture et gestion d'un réseau continu maillé haute-tension pour l'aéronautique. Electric power. Institut National Polytechnique de Toulouse - INPT, 2009. French. <tel-00554223>

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