Multiport converter for fast charging of electrical vehicle battery

The availability of new electrical vehicle batteries with high current rating and capacity permits the realization of rapid charging. However, when using conventional methods, the charging process requires an expensive high-current grid interface. Therefore, a multiport converter with a stationary storage port to reduce the current required from the grid is proposed. The goal of this paper is to explore the fundamentals of the converters used in each port. Simulation results for a 40-kW multiport converter validate the study presented.