@inproceedings{9f989ae7d49d46af987cd2409d06c6de,
title = "A Quad-Active-Bridge Series Resonant-Based Converter with Automatic Voltage-Balancing for Bipolar DC Grids",
abstract = "The conventional isolated bipolar DC-DC converters based on dual-active-bridge (DAB) and triple-active-bridge (TAB) structures required extra balancing inductor(s) or complex control algorithms to keep the output port voltages balanced. In addition, their transformer windings experience DC-offset current whenever they are fed with an unbalanced load or mismatch in the centre-tap transformer winding used for bipolar DAB. In this paper, a novel structure of quad-active-bridge (QAB) series-resonant-based converter (SRC) on input-parallel output-series (IPOS) configuration is proposed for bipolar DC grids with inherent voltage balancing features. The proposed structure eliminates the need for extra balancing inductors or complex control algorithms and addresses the problem of DC-offset current, which can be extended to modular IPOS DAB applications. The performance of the proposed converter is verified experimentally up to 2-kW.",
keywords = "bipolar DC, coupled-inductor, DC-offset, Quad-active-bridge, series-resonant converter, voltage balancing",
author = "Oluwasogo, {Emmanuel S.} and Honnyong Cha and Seunghoon Lee",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 ; Conference date: 29-10-2023 Through 02-11-2023",
year = "2023",
doi = "10.1109/ECCE53617.2023.10362734",
language = "English",
series = "2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1366--1373",
booktitle = "2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023",
address = "United States",
}
