Design and realization of a descretized PV system with an improved MPPT control for a better exploitation of the PV energy

Abstract

This work examines the performance enhancement of the studied PV system, composed of a lower stage and an upper stage connected in series. Both stages are outfitted with a photovoltaic generator, a Boost DC/DC converter commanded by improved MPPT control is provided with a specific power control (SPC). The comparative study shows a better compatibility between the measured electrical quantities corresponding of the studied PV system and the obtained simulation results. Comparing the outcomes with a standard photovoltaic system operating in a single stage reveals a 3% increase in inverter efficiency and a 20% increase in photovoltaic power generation. The findings state that the developed discretized photovoltaic system could improve the reliability of photovoltaic systems in case of possible malfunctions which contributes to reducing their cost.