Optimal Design of DC Fast-Charging Stations for EVs in Low Voltage Grids

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2017

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DC Fast Charging Station (DCFCS) is essential for widespread use of Electric Vehicle (EVs). It can recharge EVs in direct current in a short period of time. In recent years, the increasing penetration of EVs and their charging systems are going through a series of changes. This paper addresses the design of a new DCFCS for EVs coupled with a local Battery Energy Storage (BES). DCFCS is equipped with a bidirectional AC/DC converter for feeding power back to the grid, two lithium batteries
and a DC/DC converter. This paper proposes an optimal size of the BES to reduce the negative impacts on the power grid through the application of electrical storage systems within the DC fast charging stations. The proposed solution decreases the charging time and the impact on the low voltage (LV) grid significantly. The charger can be used as a multifunctional grid-utility such as congestion management and load levelling. Finally, an optimal design of the DCFSC has been done to evaluate the feasibility and the operability of the system in different EVs load conditions.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Transportation Electrification Conference
PublisherIEEE
Publication date2017
Pages684-689
ISBN (print)9781509039531
DOIs
StatePublished - 2017
Event2017 IEEE Transportation Electrification Conference - Chicago, United States

Conference

Conference2017 IEEE Transportation Electrification Conference
CountryUnited States
CityChicago
Period26/06/201728/06/2017
CitationsWeb of Science® Times Cited: No match on DOI

    Keywords

  • DC fast charging station, Battery energy storage, Electric vehicle
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