A high-efficient microcontrolled buck converter with maximum power point tracking for photovoltaic systems

Abstract

In recent years, the use of solar energy has become an alternative source of energy of great importance. Several researches and efforts have been concentrated on the improvement of the efficiency of photovoltaic systems and in the accessibility to this technology. In this sense, this work presents a buck converter controlled by P&O technique for the maximum power point tracking of the photovoltaic panel. The system is simulated and implemented experimentally using a microcontroller device. The analysis by simulations and practical results show a good performance of the control technique and the improvement of the efficiency of the system.