Optimum DC-DC buck converter used in stand-alone photovoltaic systems

Abstract

In this work, we studied an autonomous photovoltaic system. The study was carried out on modeling, control and enhancing the efficiency of buck converter in this system, consisting of a battery-based storage system, a photovoltaic generator . A theoretical study and simulation was done using the MATLAB / SIMULINK tool and proteus software. The MPPT technique is used to have optimal GPV power operation. Furthermore A simulation for the global system with matlab to observe the crucial role of the battery in the PV system for storing the energy and to enhance the control process of the whole system. The main contribution of this project is to try to give an optimum design for a buck converter by studying and testing the different factors that can affect its efficiency , As the effect of the switching device and eventually we gave the results of the study.