A single-bridge interleaved three-level LLC resonant converter with current sharing capability for fuel cell system-Reference-Cited by-同舟云学术

A single-bridge interleaved three-level LLC resonant converter with current sharing capability for fuel cell system

Published:2024-07-17 Issue:1 Volume:14 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Zhao Qianqi,Cheng Xu-Feng,Li Yazhuo,Li He,Wang Dianlong,Liu Chenyang,Zhang Yong

Abstract

AbstractThis paper propose a wide gain single-bridge interleaved three-level LLC resonant converter with current sharing capability. This novel converter offers numerous advantages, including low cost, low current ripple, reduced voltage and current stress, widely gain range, high efficiency, good current sharing capability and versatile application scalability. Utilizing the three-level inverter + full-wave rectifier LLC converter as a representative case, the paper conducts an in-depth analysis and research on the proposed method. Finality, a 600 W experimental prototype was constructed and tested. Experimental results reveal that the proposed converter exhibits lower current ripple and a broader gain range. Moreover, the converter shows good current sharing capability (with a resonant element tolerance of 10%, the current error between the two phases does not exceed 12%) and high efficiency (peaking at 95.8%).

Funder

University-Industry Collaborative Education Program

Central Guiding Local Science and Technology Development Fund Projects

Publisher

Springer Science and Business Media LLC

Link

https://www.nature.com/articles/s41598-024-67456-1.pdf

Reference31 articles.

1. Ibarra-Nuño, C. et al. MSC converter with optimized input current ripple for fuel cells applications. Int. J. Hydrog. Energy 52, 1121–1130. https://doi.org/10.1016/j.ijhydene.2023.11.205 (2024).

2. Akar, F. A fuel-cell/battery hybrid DC backup power system via a new high step-up three port converter. Int. J. Hydrog. Energy 46(73), 36398–36414. https://doi.org/10.1016/j.ijhydene.2021.08.130 (2021).

3. Gao, D. W., Jin, Z. H., Liu, J. X. & Ouyang, M. An interleaved step-up/step-down converter for fuel cell vehicle applications. Int. J. Hydrogen Energy 41(47), 22422–22432. https://doi.org/10.1016/j.ijhydene.2016.09.171 (2016).

4. Cheng, X.-F., Zhao, Q. Q., Wang, D. L., Liu, C. Y. & Zhang, Y. A high step-up multiphase interleaved boost converter for fuel cells power system. Int. J. Hydrog. Energy 56, 667–675. https://doi.org/10.1016/j.ijhydene.2023.12.210 (2024).

5. Reddy, K. J. & Natarajan, S. Energy sources and multi-input DC-DC converters used in hybrid electric vehicle applications–a review. Int. J. Hydrog. Energy 43(36), 17387–17408. https://doi.org/10.1016/j.ijhydene.2018.07.076 (2018).