Cited by 221Advanced DC-DC ConvertersWireless Power Transfer SystemsSilicon Carbide Semiconductor Technologies

High-Efficiency High-Density Critical Mode Rectifier/Inverter for WBG-Device-Based On-Board Charger

Open access
Liu, Zhengyang, Li, Bin, Lee, Fred C., Li, Qiang·2017·IEEE Transactions on Industrial Electronics

Abstract

A widebandgap-based bidirectional on-board charger (OBC) has been proposed with a variable dc-link voltage, which tracks the battery voltage fluctuation. Although this approach is deemed most efficient for the resonant dc/dc stage, it posts significant challenges for the rectifier/inverter stage, which operates in the critical mode to realize zero-voltage switching (ZVS), while subjecting to the large variations of input and output voltages. Design considerations of the ac/dc stage are presented in this paper, including: the evaluation of 1.2-kV SiC MOSFETs; the ZVS extension techniques to realize ZVS under all input/output variations; and a novel universal control strategy for both the rectifier mode and the inverter mode. A prototype is built which achieves 98.5% efficiency at a switching frequency higher than 300 kHz. Furthermore, a 6.6-kW OBC system is demonstrated, using both SiC and GaN devices with 37-W/in3power density and above 96% efficiency.

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Registry

Crossref · 10.1109/tie.2017.2716873

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  • The application of WBG devices has resulted in enhanced power density and efficiency, and lowers size and overall price.

    “The application of WBG devices has resulted in enhanced power density and efficiency.At the same time, it also lowers the size and overall price [124].”

    From On-Board Chargers for Electric Vehicles: A Comprehensive Performance and Efficiency Review (2024) · cites this paper as [124]

    The Introduction says WBG devices enable higher efficiency and power density, and the Conclusion reports both for the proposed on-board charger. Higher power density supports a smaller charger at the same power, but the Introduction describes lower cost only as a potential benefit; it does not establish that overall price fell. Page numbers are unavailable in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

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Authors
Liu, Z., Li, B., Lee, F. C., & Li, Q.
Affiliations
Virginia Tech (US)
Venue
IEEE Transactions on Industrial Electronics
Published
2017-11
Volume
64
Issue
11
Pages
9114-9123
ISSN
  • 0278-0046 (ISSN-L)
  • 1557-9948
OpenAlex
W2626008819
Cited by
221
References
26
Citations by year
2026: 15 · 2025: 21 · 2024: 27 · 2023: 26 · 2022: 27 · 2021: 30 · 2020: 23 · 2019: 25 · 2018: 25 · 2017: 2
FWCI
8.53
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Industrial Electronics (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • U.S. Department of Energy
  • Office of Energy Efficiency and Renewable Energy
  • High-Efficiency High-Density GaN-Based 6.6-kW Bidirectional on-Board Charger for PEVs
  • Delta Products Corp (DE-EE0006834)
  • Power Management Consortium with the Center for Power Electronics Systems
  • Virginia Polytechnic Institute and State University
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Silicon Carbide Semiconductor Technologies
Keywords
on-board charger, bidirectional DC-DC converter, zero-voltage switching, SiC MOSFET, GaN devices, variable DC-link voltage, high power density, high switching frequency

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