An Overview of Integrating Power Electronic Systems and Advanced Control Methods For Ultra-Fast Electric Vehicle (EV) Charging Stations in Independent Microgrids

For extended trips, when electric vehicle (EV) drivers require a charge while on the move, off-board ultra-fast chargers represent the optimal solution, providing significantly reduced charging times for EV batteries. As a result, ultra-fast battery charging has become a critical focus in the global advancement of electric mobility. Current research in power electronics for EV charging applications is centred on developing high-power chargers capable of substantially increasing charging power, thereby minimising charging durations. Additionally, EVs can enhance efficiency and high-quality power delivery by implementing vehicle-to-microgrid (V2µG) technology. This paper examines the standards for ultra-fast charging stations and explores various fast charging methodologies. It also explores various power electronic topologies, the modular design approach used in ultra-fast charging systems, and their integration into standalone microgrids. Lastly, the paper addresses advanced control techniques tailored for ultra-fast chargers.