Abstract
Abstract: Electric vehicle (EV) batteries have the potential to serve as energy storage devices in micro-grids, aiding in energy management by storing excess energy from the grid (Grid-To-Vehicle, G2V) and supplying energy back to the grid when needed (Vehicle-To-Grid, V2G). To implement this concept, appropriate infrastructure and control systems must be developed. This paper presents an architecture for integrating a V2G-G2V system in a micro-grid using level-3 fast charging technology forEVs. A micro-grid test system is modeled with a dc fast charging station for connecting EVs, and simulation studies are conducted to demonstrate power transfer through V2G-G2V modes of operation. Test results indicate that EV batteries regulate active power in the micro-grid, with the charging station design ensuring minimal harmonic distortion of grid-injected current. Furthermore, the controller exhibits excellent dynamic performance in terms of maintaining dc bus voltage stability.
Published Version
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