Effective voltage balance control for three-level bidirectional DC-DC converter based electric vehicle fast charger

Longcheng Tan, Bin Wu, Venkata Yaramasu, Sebastian Rivera

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

5 Scopus citations

Abstract

This paper proposes an effective voltage balance control (VBC) together with a new modulation technique for a high-power bidirectional three-level dc-dc converter based fast charger. The proposed VBC method can assist charging stations in balancing the dc-bus voltages so that additional balancing circuits are eliminated, leading to improved system efficiency. Meanwhile the proposed modulation method is not only intuitive to be implemented, but also have merits of reduced switching frequency, resulting in lower switching losses. The modulation principle is formulated, and its effective combination with the voltage balance control are analysed in detail. Based on which, the overall control scheme for the charging system is proposed. Simulation results are presented to validate the effectiveness of the proposed methods.

Original languageEnglish
Title of host publicationProceedings of the 2015 10th IEEE Conference on Industrial Electronics and Applications, ICIEA 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages357-362
Number of pages6
ISBN (Electronic)9781467373173
DOIs
StatePublished - 20 Nov 2015
Externally publishedYes
Event10th IEEE Conference on Industrial Electronics and Applications, ICIEA 2015 - Auckland, New Zealand
Duration: 15 Jun 201517 Jun 2015

Publication series

NameProceedings of the 2015 10th IEEE Conference on Industrial Electronics and Applications, ICIEA 2015

Conference

Conference10th IEEE Conference on Industrial Electronics and Applications, ICIEA 2015
Country/TerritoryNew Zealand
CityAuckland
Period15/06/1517/06/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

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