Efficient power management strategy of photovoltaic/load/Electrolysis/Grid hybrid system

Abstract

In this article, we design a system that assembles two sources of energy (photovoltaic: main source, and the national electrical grid: emergency source) to power a DC load with a clean and optimized storage device. This assembly called in the literature hybrid system will allow us to ensure the supply of the load in all circumstances and to store the excess of the photovoltaic energy by a clean process in the form of hydrogen production. Efficient power management strategy (PMS) for the system was evaluated by examining its ability to meet the energy load requirements. The effectiveness of this management is manifested by the extreme use of energy. The electricity grid only intervenes as a last resort to fill the energy deficit. The simulation results show that the proposed hybrid system equipped with the different control algorithms is capable of supplying the energy required by the load and of storing the excess energy in the form of hydrogen production by an optimized electrolysis system controlled by a flow-meter.