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Highly Efficient and Reliable SiC-Based DC–DC Converter for Smart Transformer
Open accessAbstract
The series-resonant converter (SRC) has been used in several application and it recently became popular for smart transformers (STs). In this application, the efficiency and reliability are of paramount importance. Although many papers have addressed the design challenges to improve the converter efficiency, discussions about the reliability are still missing in the literature. In this context, this paper presents a design procedure focusing on the efficiency and reliability improvement of the SRC for ST application. High efficiency is achieved through the use of silicon-carbide MOSFETs, reducing conduction and switching losses, and the detail design procedure based on accurate losses modeling. High reliability is achieved through a fault-tolerant topology and reliability-oriented design of the resonant circuit passive components. Experimental results obtained for the optimized 10 kW SRC has shown an efficiency of 98.61%.
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DAB with SRC has the highest power efficiency up to 98.61% when SST is implemented in three stages including a front-end rectifier as first stage.
“According to the recently reported works, the DAB with SRC has the highest power efficiency up to 98.61%, provided the SST is implemented in three stages which include the front-end rectifier as the first stage [81]”
From State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements (2020) · cites this paper as [81]
SRC operates in discontinuous conduction mode to reach the most efficient operating point by achieving ZVS, ZCS, and low current switching.
“Besides, SRC operates in discontinuous conduction mode (DCM) to reach the most efficient operating point [81] by achieving ZVS, zero-current switching (ZCS) and low current switching.”
From State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements (2020) · cites this paper as [81]
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References 30 · Cited by 67
Research works printed but not linked: 26
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Metadata
- Authors
- Costa, L. F., Buticchi, G., & Liserre, M.
- Affiliations
- Christian-Albrechts-Universität zu Kiel (DE)
- Venue
- IEEE Transactions on Industrial Electronics
- Published
- 2017-10
- Volume
- 64
- Issue
- 10
- Pages
- 8383-8392
- ISSN
- 0278-0046 (ISSN-L)
- 1557-9948
- OpenAlex
- W2608112722
- Cited by
- 67
- References
- 30
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 6 · 2023: 8 · 2022: 13 · 2021: 5 · 2020: 9 · 2019: 9 · 2018: 11 · 2017: 2
- FWCI
- 3.53
- Type
- journal article
- Language
- en
- Open access
- green
- macau.uni-kiel.de
- Locations
- IEEE Transactions on Industrial Electronics (publishedVersion)
- Multimedialen Archiv und Publikationsserver der Christian-Albrechts-Universität zu Kiel (Christian-Albrechts-Universität zu Kiel) (submittedVersion, other-oa)
- MACAU: Open Access Repository of Kiel University (University Library Kiel) (submittedVersion)
- Funders
- European Research Council
- European Union's Seventh Framework Programme (FP/2007-2013)
- ERC (616344—HEART)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Silicon Carbide Semiconductor Technologies
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
- Keywords
- series resonant converter, DC-DC converter, solid-state transformer, SiC MOSFET, converter efficiency, converter reliability, switching losses, conduction losses, loss modeling, power electronics design
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