LAUSR

Abstract The development of energy management techniques for photovoltaic systems with storage batteries offers users a certain flexibility. This paper, present an energy management strategy applied to a photovoltiac system including batteries storage and fuel cells system. To test the feasibility of the proposed strategy, the system was designed to supply a house with a consumption of 2,808 kWh/day. The chosen site is Bejaia, a coastal city in eastern Algeria where the solar potential reaches 1.2 kWh/m²/day. Each subsystem is designed to determine the optimal number of components to supply the desired load. In order to manage these different sources, an energy supervision was applied. The PV power has been optimized using fuzzy logic controller (FLC). Due to the proposed supervision, there was an excess photovoltaic power which is used to supply an electrolyzer and charge the batteries. Three important scenarios have been used to show the improvements of the supervision which protect the batteries and allow us to obtain an uninterrupted power load. Tests were realized under different meteorological conditions Results obtained by simulation under Matlab/Simulink are presented and analyzed. Finally, in order to highlight the feasibility of the system, an economic study was carried out using Homer Pro software. The application has been made under Matlab/Simulink ( Fig. 17 ) on two different days corresponding to a sunny and a cloudy day measured at the chosen site ( Fig. 18 ).