Modeling and simulation of batteries in a photovoltaic system

The demand for electricity is growing worldwide and in Cameroon in particular. Fossil energies being exhaustable and harmful for the environment, clean energies such as photovoltaic constitute a relay solution by guaranteeing an unlimited and non-polluting supply. As photovoltaic energy is intermittent, it is necessary to design a storage system, the most common being the accumulator battery. The latter requires a permanent control and management for an efficient use; hence the need to model it, allowing to highlight all the phenomena that compose it. Thus, in this work we present three electrical models for the modeling of the lead-acid battery in the locality of Eseka, Cameroon, allowing us to study its operation and to evaluate its performance. The battery can undergo a premature degradation, we estimated its state of charge but also its voltages of charge and discharge.