Bidirectional DC-DC Converter with Grid Connected Multi-Array PV/Batteries

The suggested system is designed to meet load demand, control power flow from various sources, inject excess power into the grid, and charge the battery from the grid as needed. To capture electricity from PV and manage battery charging and discharging, a bidirectional buck-boost converter is employed. For ac load feeding and grid interface, a single-phase full bridge bidirectional converter is utilized. In comparison to existing grid-connected hybrid systems, the suggested converter architecture features fewer power conversion stages, fewer components, and lower losses. This increases the system's efficiency and dependability. A bi-directional photovoltaic battery-based multi-array dc to dc converter for residential usage is suggested. The suggested method is an elegant approach to connect numerous arrays to a grid utilizing PV sources to get the most energy out of them. A standard full-bridge inverter is used after a unique multi-input transformer coupled bidirectional dc-dc converter. A flexible control method is provided for higher PV power consumption, battery capacities without affecting battery life, and power flow management in a grid-connected PV battery-based system serving ac loads. To determine the scheme's feasibility, detailed simulation studies are conducted. The experimental results are consistent with models and support the demonstration of the system's capacity to function in either grid feeding or stand-alone mode. The suggested arrangement can provide uninterruptible power to ac loads while also ensuring that surplus solar electricity is discharged into the grid.