Hybridization of solar panel and batteries for street lighting by passivity based control

A street lighting application is designed based on renewable energy sources as photovoltaic solar panel hybridized with a battery. The system is applicable for remote areas or isolated DC loads. The state space model of the whole system is presented. Control strategy has been considered to achieve permanent power supply to the load via the photovoltaic/battery on the power available from the sun. Passivity Based Control is applied to ensure the control aims and the energy management between sources. The stability proof is provided and the simulation using Matlab are concluding. A realistic scenario based on the availability of solar radiation is proposed and the energy assessment is discussed.