Application of Matlab/SIMULINK to Analysis of Photovoltaic System with Batteries

Electricity production from renewable sources is increasing day by day. Photovoltaic plants, wind plants, small hydro plants, biomass energy, fuel cells, etc., are mostly used for this production. Since electricity production from renewable sources is variable depending on weather conditions, and in order to ensure greater consistency in electricity production, there is a possibility of combining two or more sources. The analysis of such systems is specific and more complex than the analysis of individual renewable energy systems, which is why appropriate computer methods and systems are often used for their simulation and analysis. ln this paper, simulations of a photovoltaic system using batteries to store part of the produced electricity is given using the computer program Matlab/SIMULINK. Apart from the simulation of this system, the paper also provides an analysis of the basic parameters and operating characteristics of the system, primarily the electricity produced, stored, and delivered to consumers, the changes in the current, voltage and power of the system depending on the operating mode and conditions on the system.