DC Charging Architecture Enabled Power Transfer using Vehicle-to-Grid Technology

Abstract

Recent growth in Electric vehicles (EV) has led to EV batteries being seen as potential energy storage devices and power sources with the advent of vehicle-to-grid (V2G) and grid-to-vehicle (G2V) technology. EV batteries can aid in improving overall efficiency of the system. The paper proposes a V2G/G2V model which consists of a bi-directional grid connected converter, off-board chargers, EV batteries, and filters utilising standard DC charging for effective power sharing, control, and regulation. The control of the chargers decides the priority of the source based on the set threshold level and subsequently integrates with the circuit. The converter processes the signals without external interference like communication links. The V2G/G2V concept is designed, modelled, and visualized in MATLAB/Simulink, and the various results indicate the potential for better energy utilization and energy trade between individual players.