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Comparative analysis of three‐phase dual active bridge converter with different transformer topology and modern universal control for DC microgrids
Abstract
The presented work discusses issues related to the use of modern multiphase topologies of Dual Active Bridge (DAB)-type converters. Converters of this type are widely used in most DC microgrid applications. The introduction emphasizes a comparative analysis between single-phase and multi-phase DAB topologies within high-power DC microgrids, delving into their respective advantages, drawbacks, design procedures, and considerations based on the latest knowledge. The publication explores the comparison and selection of viable topologies for deployment in high-power and high-efficiency DC microgrids. The unified method of controlling 1-phase and multi-phase DAB converters was proposed in this design, simplifying the issues of DC microgrid control. All topologies were tested on the same controller concept. The study performs laboratory investigation of DAB 1-phase and 3-phase: Star–Star, and Star–Delta topologies. Attention was paid to maintaining uniform operating conditions of the system, contrary to studies known from the literature, all tests were carried out on the same laboratory stand and the same magnetic components in different configurations. Analytical and laboratory analyses of the Zero Voltage Switching (ZVS) region were performed, accounting for non-linear phenomena. Based on these findings, an assessment of the system’s performance in soft switching was carried out. The pre- sented results were implemented in a simulation model and subsequently validated through tests on a constructed laboratory setup to ensure the proper operation of the system. This work meticulously presents and discusses variations in efficiency, dynamic response, phase current harmonic distribution, phase shift distribution, ZVS switching region, and more among the examined topologies. To ensure a fair comparison, the converter configuration for both simulation and laboratory models utilized identical components across all configurations.
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Authors (3)
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Serafin Bachman
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Marek Jasiński dr hab. inż.
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1049/pel2.12647
- License
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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IET Power Electronics
pages 1 - 13,
ISSN: 1755-4535 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Bachman S., Turzyński M., Jasiński M.: Comparative analysis of three‐phase dual active bridge converter with different transformer topology and modern universal control for DC microgrids// IET Power Electronics -, (2024), s.1-13
- DOI:
- Digital Object Identifier (open in new tab) 10.1049/pel2.12647
- Sources of funding:
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- COST_FREE
- Verified by:
- Gdańsk University of Technology
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