Abstract
The electric aircraft tends to become widespread at all the main manufacturers of the domain of the aeronautics. Needs do not stop growing and require setting up reliable, efficiency and modular systems of conversion of energy. These systems of conversion are often coupled with systems of storage of energy (battery) allowing in certain situations to make the punctually autonomous aircraft energetically thanks to a source of power independent from main organs of power production. This interconnection battery - network of edge presents a very high report of rise of tension what, added to the high current value of the battery bus, in fact a particularly complex object to be realized.The objective of this thesis is to design in an optimal way a converter of power isolated allowing the interconnection of a low-voltage bus 28V (typically batteries) in a high-voltage bus 540V (network of edge of the aircraft) with an exchangeable power about 12 kW. It takes place within the framework of an ANR project (four university partners + AIRBUS) the development of tools of conception of which one of the tasks is for the ENP. The corresponding work includes a contribution to this task in the form of the construction of models of the main components occurring in a converter, model intended to be integrated into the routines of optimization. For that reason, they will be analytical (physical, empirical or mix both).These models will then be inserted into a global tool developed in another thesis of the project, by means of which various architectures of converters will be compared to deduct the best solution from it for the previous specifications. A prototype of the reserved converter will be finally realized by using advanced technologies, to lead an experimental validation.