Design of a Medium Voltage DC Fast Charging Station with Grid Voltage Regulation and Central Modular Multilevel Converter

Luis Camurca, Xiang Gao, Levy F. Costa, Marco Liserre

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

16 Citations (Scopus)

Abstract

Fast, Superfast and Hyperfast Charging Stations (FCS) are now a reality and will become even more common in the next few years. Their integration in the medium voltage grid will impose new challenges and developments not only in the power electronics application range, but also in the grid analysis and dynamics. This paper presents a FCS structure based on a central AC-DC bidirectional converter, which for this study is the modular multilevel converter (MMC), with ancillary services provision capability. To evaluate the integration of the FCS on a standard distribution grid, a study case is described, in which an analysis on how load variations connected to it may affect the voltage regulation and how the FCS can contribute to reduce this effect. Once the requirements for the converter design are defined from the study analysis, a cost/losses optimization for the medium level MMC is provided. Finally, with experimental results presented, the current and future set-ups are discussed.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition (ECCE)
PublisherInstitute of Electrical and Electronics Engineers
Pages2798-2804
Number of pages7
ISBN (Electronic)978-1-4799-7312-5
DOIs
Publication statusPublished - 6 Dec 2018
Externally publishedYes
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sept 201827 Sept 2018
Conference number: 10

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Abbreviated titleECCE 2018
Country/TerritoryUnited States
CityPortland
Period23/09/1827/09/18

Funding

ACKNOWLEDGEMENT This paper was developed as part of research project RELINK [03ET7562B] funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) and as part of project INTERREG from the European Union/Interreg V-A– Germany-Denmark, under PE:Region Project.

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