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EV-based Smart E-mobility System -- Part I: Concept

The first of this two-paper series proposes and elaborates a concept of electric vehicle (EV)-based e-mobility system. To this end, models designed to reap the benefits of EVs' flexibility in the literature almost exclusively consider charging stations as active players exploiting the EVs' flexibility. Such stations are seen as static loads able to provide flexibility only when EVs are connected to them. However, this standpoint suffers from two major issues. First, the charging stations need to anticipate some important parameters of the incoming EVs, e.g. time of arrival and departure, state-of-energy of the EV's battery at arrival and the required state-of-energy at its departure. Second, it observes the EVs only when they are connected to these charging stations, thus overlooking the arbitrage and charging opportunities when the EVs are connected to other charging stations. This paper proposes a new viewpoint, where EVs are observed as dynamic movable storage systems which can provide flexibility at any charging station. The paper defines both systems, the existing one, where the flexibility is viewed from the standpoint of charging stations, and the proposed one, where the flexibility is viewed from the EVs' standpoint.

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