Optimization of energy management of a photovoltaic system by the fuzzy logic technique

The efficiency of a photovoltaic system depends mainly on its energy management which takes in charge the storage and the distribution of the energy produced by the photovoltaic system in order to feed the load and to avoid any shortage of energy. Our project concerns the energy management of a Stand Alone Photovoltaic System. This is done by elaborating an algorithmbased on the fuzzy logic technique which allows us to optimize the management of the storage system, ensuring a longer battery life, and the energy distribution available from the photovoltaic array and the batteries. It appears from the first results obtained that the fuzzy logic control maintains the battery voltage almost stable at the end phase of charge.