Improved Maximum Power Point Tracking using Fuzzy Logic Control with SEPIC Converter for Photovoltaic Systems

In this paper, an intelligent technique of maximum power point tracking (MPPT) is presented, using fuzzy logic control with the single ended primary inductor converter (SEPIC), and that to improve the produced power and to minimize lost in the DC-DC converter. Two MPPT algorithms are used, a classical and simple technique, the P& O in order to compare it with the proposed Fuzzy logic control. The obtained simulations results are modeled under MATLAB/Simulink. Simulation results shows the good comportment of the proposed methods which gives more extracted power and better response comparing with P& O technique.