Résumé
The whole research projects that concern the concentrated photovoitaic (CPV) are systematically about the yield improvement of the cell. The positioning of the work presented here is at the cell interconnections for achieving a stable DC bus to extract the maximum power from individual cells. This architecture minimizes interactions and limitations between cells and string. The main goal is to replace cell interconnection by a high-gain boost-mirror, in order to improve the energy efficiency of CPV installations. This paper presents both, the new global architecture and the structural optimization of a DC-DC converter for concentrated photovoltaic power plant. After the presentation of the architecture used for CPV power plant, a reference converter and a boost-mirror are presented. Both converters are sized to the field of CPV power plant (capacitors, intercellular transformer, control etc.). Then the optimization of the complete converter is presented.