Solar energy represents the future of the world in matter of clean energy. Its use and mainly the photo voltaic (PV), for different applications including grid connected, are well suited to most of the rural areas due to the lack of electrification. In this paper we proposed a strategy for optimizing the performance of a grid-connected photovoltaic system. For this, we opted for an MPPT control method based on the fuzzy logic controller. The control and improving of the performance of a voltage source inverter for grid connected photovoltaic systems, we proposed to use a modern technique which is called direct power control. Simulations of the proposed approach give interesting results compared to the existing control strategies in this field. The model of the proposed system is simulated by MATLAB / Simulink.

Keywords: Solar energy, Maximum power point tracking (MPPT), Fuzzy logic control (FLC), Direct power control, Electrical grid