Optimisation des systèmes multi-sources de production d'électricité à énergies renouvelables

The main objective of this paper is to analyse the energy transfers taking place in a stand alone hybrid photovoltaic/engine generator/battery system. A simulation of the energy behaviour of such a system is developed and several parameters are analysed such as wasted energy, fuel consumption, part of the PV subsystem in the global production. The analysis shows that the various energies are more dependent from the PV modules areas than the storage capacity and that more than two or three days of autonomy is not necessary because an increase of the storage beyond this value have not a sufficient impact on the performance of the hybrid system. At last an economical study is performed to determine the optimized configuration of the PV hybrid system i.e. the system configuration conducing to the lowest kWh cost. Mots cles: Systemes hybrides photovoltaiques - Dimensionnement - Optimisation.