Pseudo-Partial-Power Converter without High Frequency Transformer for Electric Vehicle Fast Charging Stations

Sebastian Rivera, Daniel Pesantez, Samir Kouro, Peter W. Lehn

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

4 Scopus citations

Abstract

This paper presents a new partial power converter (PPC) for the DC-DC stage of electric vehicle (EV) fast charging stations. The proposed converter handles only a fraction of the total power delivered from the grid to the battery, increasing the overall system efficiency and power density, while potentially reducing the cost of the charger. The proposed topology is based on a switched capacitor between the AC terminals of an H-bridge converter, and does not require high frequency isolation transformers to provide a controllable voltage source between the DC-link and the battery. The proposed concept can be implemented using interleaved power cells, which can improve the power quality, reduce inductor size, and enable scalability for higher power rating chargers. The operating principle, partial operation analysis, control scheme, and simulation results are presented to validate the proposed concept.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1208-1213
Number of pages6
ISBN (Electronic)9781479973118
DOIs
StatePublished - 3 Dec 2018
Externally publishedYes
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sep 201827 Sep 2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

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

Bibliographical note

Funding Information:
VII. ACKNOWLEDGMENTS The authors acknowledge the support provided by FONDE-CYT 11170774, by AC3E (CONICYT/Basal/FB0008), by SERC Chile (CONICYT/FONDAP/15110019). and by CON-ICYT/REDES/170213.

Publisher Copyright:
© 2018 IEEE.

Keywords

  • Electric Vehicles
  • Fast Charging
  • Partial Power Processing

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