-This paper deals with the design of a gridfriendly ultrafast electric vehicle charging demonstrator. High charging power and short charging times impose peaks to an electricity distribution system, which necessitate over-dimensioning of the grid connection. A mitigation option lies in partial decoupling the load from the grid, achieved with the application of energy storage elements. A calculation methodology for energy storage elements is proposed and their interconnection possibilities to an ultrafast EV charging spot discussed.Index Terms -electric vehicles, energy storage, ultrafast charging.

An evident issue for electric vehicle (EV) is the limited average speed while driving long distances. This paper will provide a better understanding of EV requirements in order to make the electric vehicles more compatible for long distance driving. Battery requirements are specified and the ultra-fast charging station is introduced, where power levelling and load shifting are proposed in order to alleviate the impact of ultra-fast charging on the grid utility; this should be able to satisfy the charging demand according to the electric vehicles frequentation. Then, 24-hour EV road trip are performed to validate the performance of the related system studies.

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