Abstract
Abstract In this paper, an energy flow management algorithm for a grid-connected-photovoltaic system with battery storage devoted to supply a home is presented. This algorithm favours the fulfilment of the home energy demand by the energy produced by the photovoltaic generator or stored in the batteries than that got from the grid. This algorithm manages the flow of energy in the house through the combination of four switches. It was applied to the case of a home installed in a coastal region of Bou-Ismail (Algeria). The efficiency of the algorithm was tested for two weeks, a favourable week in summer and an unfavourable week in winter regarding the weather conditions. The simulation of the on grid PV system was done using real data of the irradiation and the temperature acquired by the meteorological station of the Bou-Ismail site and a home load profile for each season. The results obtained revealed that the energy demand satisfaction for the house is high in the favourable summer week and is only 33% in the winter unfavourable week. To meet a high rate of self-consumption a Home Energy Management is required.
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