EV Charging Stations and RES-Based DG: a Centralized Approach for Smart Integration in Active Distribution Grids

Giulio Caneponi, Fabio Cazzato, Simone Cochi, Marco Di Clerico, Maria Carmen Falvo, Matteo Manganelli

Abstract


Renewable Energy Sources based (RES-based) Dispersed Generation (DG) and Electrical Vehicles (EVs) charging systems diffusion is in progress in many Countries around the word. They have huge effects on the distribution grids planning and operation, particularly on MV and LV distribution grids. Many studies on their impact on the power systems are ongoing, proposing different approaches of managing. The present work deals with a real application case of integration of EVs charging stations with ES-based DG. The final task of the integration is to be able to assure the maximum utilization of the distribution grid to which both are connected, without any upgrading action, and in accordance with Distribution System Operators (DSOs) needs. The application of the proposed approach is related to an existent distribution system, owned by e-distribuzione, the leading DSO in Italy. Diverse types of EVs supplying stations, with diverse diffusion scenarios, have been assumed for the case study; various Optimal Power Flow (OPF) models, based on diverse objective functions, reflecting DSO necessities, have been applied and tried. The obtained results demonstrate that a centralized management approach by the DSO, could assure the respect of operation limits of the system in the actual asset, delaying or avoiding upgrading engagements and charges.


Keywords


smart distribution grids; dispersed generation; electrical vehicles; optimum power flow; power flow; planning and operation; renewable energy sources.

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v9i2.9079.g7630

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