MODELING AND SIMULATION OF THE ENERGY STORED AND DELIVERED BY A BATTERY IN AN AUTONOMOUS PHOTOVOLTAIC SYSTEM

This work presents the modeling and simulation of the energy stored and delivered by a battery in an autonomous photovoltaic system. In this system, the energy accumulator is the main element but also the most fragile element. This justifies the great attention paid to this device. During this work, we used the CIEMAT model which was developed to study the performance of a lead acid battery in the Sahelian zone. The simulation allowed us to describe the operation of the lead acid battery through the prediction of the state of charge (EDCc) and the charge voltage (VC) on the one hand, the depth of discharge (EDCd) and the discharge voltage of other parts, for several values of the temperature. Comparison of the results obtained with the work of other researchers reveals a good prediction of the energy stored and delivered by a lead acid battery used in the autonomous photovoltaic system.