Étude et dimensionnement d’un convertisseur statique pour la connexion d’un générateur photovoltaïque au réseau

Abstract

The must developed application of the photovoltaic solar energy in this last decade is certainly the connected to grid, this system permits us to inject the surplus of energy provided from the photovoltaic generator to grid, or to extract some, if the consumer needed to it. In order to connect these facilities to the grid it is necessary to use an inverter, which is the main piece of this installation that is constituted of: 1. A photovoltaic generator. 2. A DC/DC converter to track the maximal power point. 3. An inverter uses as interface between the generator and the grid. For this topic, ower work is organized in three essential parts: 1. A description of the photovoltaic generator and parameters influencing the energy are giving in the mathematicals models used in simulation 2. A review on main choppers used in these facilities to track the maximal power point and methods used for the determination of the reference tension 3. Some historics about inverters used for connection to the utility, its principle of working with addition of static compensator and activates filtering of the harmonic functions, determination of the switch nature used and values of all components that constitute this inverter, follow-up by has simulation with MATLAB/SIMULINK5.0 of this system while adopting two technical of orders: PWM and by hysteretic Finally, the analysis of the results are given and we give perspectives for the future works and recommendations for the realization of this inverter