Analysis and simulation of maximum power point tracker of photovoltaic system using fuzzy logic controller.

Abstract

We propose in this article the study of a photovoltaic system whose configuration include a photovoltaic generator, an impedance adapter DC-DC converter ,The PV generator is forced to a maximal power operating by using an appropriate incremental conductance and fuzzy logic method .This adaptation between the photovoltaic generator and the load is done from the DC-DC converter with control variables witch are the cyclic ratio, using the PWM technical according to the irradiation and temperature conditions. This adaptation permits a maximum power tracking of PV generator.
This MPPT method has been presented and as result, a computer model under MATLAB Simulink software to analyze the performance of system under different conditions of the irradiation, temperature and the fluctuation load is developed.