Single-phase grid-tied photovoltaic inverter to control active and reactive power with battery energy storage device

This paper presents a Photovoltaic (PV) inverter along with a battery energy storage system connected in shunt with the grid. The objective of the proposed control system is to control both active and reactive power exchange between the grid and the load throughout the day, through a Voltage Source Inverter (VSI). Along with the reactive power compensation, it also provides current harmonic compensation to the connected load. A combined PV-battery arrangement is provided through a bi-directional DC-DC converter for uninterrupted power supply.

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