Buck-Boost Flying Capacitor DC-DC Converter for Electric Vehicle Charging Stations

Conference paper (2023)

Authors

Daniel Pesantez Universidad Técnica Federico Santa María
Leonardo F. Arias-Rodriguez Universidad Técnica Federico Santa María
Hugues Renaudineau Universidad Técnica Federico Santa María
Sebastian Rivera DC systems, Energy conversion & Storage - EEMCS
Samir Kouro Universidad Técnica Federico Santa María, University of Seville
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
Copyright: © 2023 D. Pesantez, F. Rodriguez, H. Renaudineau, Sebastian Rivera, S. Kouro
DOI
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https://doi.org/10.1109/CPE-POWERENG58103.2023.10227461
Electric Vehicles Fast Charging Flying-Capacitor
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Published Date

2023

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

This paper proposes a new buck-boost flying-capacitor (FC) converter for the DC-DC stage of an Electric Vehicle (EV) fast charging station. The proposed converter is capable of delivering a wide output range of voltage to charge different battery configurations. The converter has two modes of operation, buck and boost. Thanks to this feature, the proposed converter allows higher efficiency and a wide operating range. The proposed converter is capable of supplying a voltage range from 200 V to 1000 V at its output, which shows the feasibility of occupying the converter inside a charging station that allows charging 400 V and 800 V battery systems. The average efficiency reported is over 97%. It is concluded that the proposed buck-boost FC converter is suitable for modern wide-output EV fast charging applications.