Four-port Non-Isolated DC-DC Converter With PVMPPT & Battery, Supplying AC & DC Loads

Abstract

This study introduces a unique four-port DCDC converter designed for grid-connected applications, focusing on integrating solar photovoltaic (PV) with MPPT and battery systems. The converter features a single input source, a bidirectional port, and two output ports, offering versatile capabilities. The bidirectional port ensures smooth integration between the battery and the solar PV setup, while the two output ports provide flexibility to power either two distinct loads or a single load. This document offers a comprehensive examination of the converter and presents two real-world examples. The study is supported by simulation results that validate all theoretical claims.