Modélation numérique de nouveaux systèmes à EnR .

Abstract

During the photovoltaic conversion of the solar collector, a heat is generated, what will increase the temperature of the photovoltaic cell and will cause a fall of its efficiency. This phenomenon is due to the part of the solar radiance non absorbed by the cells and that will be to the origin of its warming-up. This warming-up has been considered like ominous for the photovoltaic solar thermal collector, and several efforts have been agreed to evacuate this heat. There was also help to exploit this phenomenon by the photovoltaic system combination with a thermal system to form the collector hybridize PVT, that is going to generate electricity and the heat at the same time. The objective of this work concerns the photovoltaic pumping system improvement by the insertion of a thermal photovoltaic (PVT) to increase the efficiency of this system. Follows a général presentation on the photovoltaic systems. The comparison between the direct coupling and the technique of MPPT (Maximum Power Point Tracker) with and without PVT collector proves to be necessary. Finally, the use of this technique to supply a converter, while showing the influence of the climatic parameters around this point. The results gotten extended were promising and remain to validate practically.