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Efficiency Analysis of an Interleaved Converter as Power Interface between a PEM Electrolyzer and a Photovoltaic Source

Gianpaolo Vitale

 

2024/07/20

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Abstract

This paper deals with the conversion efficiency of an interleaved six-legs DC/DC converter used as an interface between a photovoltaic source and an electrolyzer. Different configurations of the photovoltaic sources are analysed, varying the numbers of the operated legs of the converters. The efficiency is affected by the high current required by the electrolyzer; however, the analysis shows that the optimal configuration of the PV source and of the number of the converter’s operated legs can improve performance. 

 

Published in: Renewable Energies, Environment & Power Quality Journal (REE&PQJ), Vol. 2
Pages: 308-319 Date of Publication: 2024/07/20
ISSN: 3020-531 X Date of Current Version: 2024/04/15
REF: 438-24 Issue Date: July 2024
DOI:10.24084/reepqj24.438 Publisher: EA4EPQ

Authors and affiliations

Gianpaolo Vitale

ICAR, Institute for high performance computing and networking, National Research Council (CNR), Via Ugo La Malfa, 153, 90146 Palermo. ORCID:0000-0002-5439-6835

Key Words

Photovoltaic source; DC/DC converter; interleaved converter, PEM electrolyzer; efficiency; Hydrogen.

References

[1] Guilbert, D., Vitale, G. (2021). Hydrogen as a clean and sustainable energy vector for global transition from fossil-based to zero-carbon. Clean Technologies, 3(4), 881-909.

[2] Hydrogen Production: Electrolysis. Available online: https://www.energy.gov/eere/fuelcells/hydrogen-production-electrolysis (accessed on 25 feb 2024).

[3] Buttler, A.; Spliethoff, H. Current status of water electrolysis for energy storage, grid balancing and sector coupling via power-togas and power-to-liquids: A review. Renew. Sustain. Energy Rev. 2018, 82, 2440–2454.

[4] Abdelkareem, M. A., Abdelghafar, A. A., Mahmoud, M., Sayed, E. T., Mahmoud, M. S., Alami, A. H., ... & Olabi, A. G. (2023). Optimized solar photovoltaic-powered green hydrogen: Current status, recent advancements, and barriers. Solar Energy, 112072.

[5] Bilgen E. Solar hydrogen from photovoltaic-electrolyzer systems. Energy Convers Manage 2001;42(9):1047–57.

[6] Ahmad, G. E., & El Shenawy, E. T. (2006). Optimized photovoltaic system for hydrogen production. Renewable Energy, 31(7), 1043-1054.

[7] Yodwong, Burin, et al. "AC-DC converters for electrolyzer applications: State of the art and future challenges." Electronics 9.6 (2020): 912.


 
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