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Recharging of EV in a typical Italian urban area: evaluation of the hosting capacity

pubblicazioni - Articolo

Recharging of EV in a typical Italian urban area: evaluation of the hosting capacity

The paper addresses the assessment and planning of low voltage distribution networks in the urban area of a major Italian city considering the introduction of electric mobility. Two scenarios are analyzed. Data collected by the smart metering system allowed the construction of load curves for all LV users, all lateral feeders, all main feeders and all transformers. That information was used to evaluate the maximum number of cars that can be recharged in parallel both for slow mono phase charging and fast three phases charging and the “maximum theoretical” number of cars that may be recharged in the LV using a “smart charge” system. The systematic analyze of load diagrams for all trunks of LV networks allowed to identify at the same time both the maximum “hosting capacity” and to set thresholds after which cable upgrading is needed. An application to distribution networks of an Italian major city is shown.

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