GRID-CONNECTED HYBRID PV SYSTEM WITH BATTERY STORAGE

AbstractPhotovoltaic systems (PV) are an integrated set of photovoltaic modules with all the necessarycomponents that are dimensioned to receive solar energy and convert it into electricity that wouldbe adequately powered by some DC and/or AC consumers. Depending on how they work,photovoltaic systems can be divided into stand-alone PV systems (off-grid), grid-tied PV systemsconnected to the electricity distribution network (on-grid), and hybrid PV systems as a combinationof the previous two systems.In this paper, we will consider the operation of a hybrid grid-connected PV system with batterystorage which transforms solar energy into electricity and allows the storage of excess generatedelectricity in the batteries. Additionally, this system provides, if needed, the excess generatedelectricity to be delivered directly to the power grid. The proposed hybrid system could optimize allthree energy sources PV modules, batteries, and power grid, and continuously deliver quality powerto connected consumers. Properly sized and controlled hybrid PV systems significantly increase theuse of so-called green energy from renewable energy sources and increase the independence andcontinuous power supply of the consumers.Keywords: renewable energy sources, PV systems, inverters, batteries, hybrid system