Planning Future Electric Vehicle Central Charging Stations Connected to Low-Voltage Distribution Networks

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Abstract

A great interest is recently paid to Electric Vehicles (EV) and their integration into electricity grids. EV can potentially play an important role in power system operation, however, the EV charging infrastructures have been only partly defined, considering them as limited to individual charging points, randomly distributed into the networks. This paper addresses the planning of public central charging stations (CCS) that can be integrated in low-voltage (LV) networks for EV parallel charging. The concepts of AC and DC architectures of CCS are proposed and a comparison is given on their investment cost. Investigation on location and size of CCS is conducted, analyzing two LV grids of different capacity. The results enlighten that a public CCS should be preferably located in the range of 100 m from the transformer. The AC charging levels of 11 kW and 22 kW have the highest potential in LV grids. The option of DC fast-charging is only possible in the larger capacity grids, withstanding the parallel charge of one or two vehicles.
Original languageEnglish
Title of host publication3rd International Symposium on Power Electronics for Distributed Generation System
PublisherIEEE
Publication date2012
Publication statusPublished - 2012
Event3rd International Symposium on Power Electronics for Distributed Generation System - Aalborg, Denmark
Duration: 28 Jun 201229 Jun 2012
http://www.pedg2012.org/home.aspx

Conference

Conference3rd International Symposium on Power Electronics for Distributed Generation System
Country/TerritoryDenmark
CityAalborg
Period28/06/201229/06/2012
Internet address

Bibliographical note

IEEE PEDG 2012, 3rd International Symposium on Power Electronics for Distributed Generation System
Denmark, Aalborg, June, 2012

Keywords

  • Electric vehicles
  • Charging insfrastructures
  • Charging stations
  • Low voltage grids

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