An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems

This paper introduces an integrated topology of isolated three-port dc-dc converter (TPC) to interface Photovoltaic (PV) and battery for standalone system. To guarantee zero circulating current flow between different ports while permitting bidirectional power at the port, auxiliary switches are utilized with active bridges proposed TPC topology. In addition, a simple switching scheme based on Pulse Width Modulation (PWM) is input TPC. action eliminates need phase shift modulation used conventional TPCs. While PV port controlled track maximum point, managed regulate load voltage. The presents detailed mathematical analysis operation modes estimated control limits during charging discharging battery. Consequently, dynamic limiters duty cycle each set. PV-battery system simulated using PSCAD/EMTDC software package validate assess performance Moreover, experimental results presented authenticate evaluate behavior