Design and evaluation of a 6.6 kW GaN converter for onboard charger applications

Gui Jia Su; Cliff White; Zhenxian Liang

doi:10.1109/COMPEL.2017.8013335

Design and evaluation of a 6.6 kW GaN converter for onboard charger applications

Gui Jia Su, Cliff White, Zhenxian Liang

Electric Drives Research

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

14 Scopus citations

Abstract

This paper presents a compact, lightweight, highly efficient, 6.6 kW isolated three-port DC-DC converter for onboard charger (OBC) applications. The converter was designed and fabricated using normally-off gallium nitride (GaN) transistors; a three-dimensional (3-D) printed cold plate; high-voltage heavy copper printed circuit board (PCB) power planes; low-voltage (14 V) and high-current PCB power planes; and a planar transformer. The prototype has a power density of 10.5 kW/L and specific power of 9.6 kW/kg. Test results show greater efficiency than a silicon-based counterpart, even at 2.5 times higher switching frequency. The isolated GaN converter was integrated with a 100 kW segmented traction inverter that uses silicon carbide MOSFETs and 3-D printed components to test the functionality as a level-2 OBC. Testing and evaluation of the integral onboard charging functionality was successfully completed at power levels up to 6.6 kW.

Original language	English
Title of host publication	2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509053261
DOIs	https://doi.org/10.1109/COMPEL.2017.8013335
State	Published - Aug 18 2017
Event	18th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2017 - Stanford, United States Duration: Jul 9 2017 → Jul 12 2017

Publication series

Name	2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017

Conference

Conference	18th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2017
Country/Territory	United States
City	Stanford
Period	07/9/17 → 07/12/17

Funding

Notice: This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC0500OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Keywords

3D printed heat sink
gallium nitride (GaN) transistors
integrated charger
isolated converter
onboard charger

Access to Document

10.1109/COMPEL.2017.8013335

Cite this

Su, G. J., White, C., & Liang, Z. (2017). Design and evaluation of a 6.6 kW GaN converter for onboard charger applications. In 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017 Article 8013335 (2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEL.2017.8013335

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title = "Design and evaluation of a 6.6 kW GaN converter for onboard charger applications",

abstract = "This paper presents a compact, lightweight, highly efficient, 6.6 kW isolated three-port DC-DC converter for onboard charger (OBC) applications. The converter was designed and fabricated using normally-off gallium nitride (GaN) transistors; a three-dimensional (3-D) printed cold plate; high-voltage heavy copper printed circuit board (PCB) power planes; low-voltage (14 V) and high-current PCB power planes; and a planar transformer. The prototype has a power density of 10.5 kW/L and specific power of 9.6 kW/kg. Test results show greater efficiency than a silicon-based counterpart, even at 2.5 times higher switching frequency. The isolated GaN converter was integrated with a 100 kW segmented traction inverter that uses silicon carbide MOSFETs and 3-D printed components to test the functionality as a level-2 OBC. Testing and evaluation of the integral onboard charging functionality was successfully completed at power levels up to 6.6 kW.",

keywords = "3D printed heat sink, gallium nitride (GaN) transistors, integrated charger, isolated converter, onboard charger",

author = "Su, {Gui Jia} and Cliff White and Zhenxian Liang",

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Su, GJ , White, C & Liang, Z 2017, Design and evaluation of a 6.6 kW GaN converter for onboard charger applications. in 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017., 8013335, 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017, Institute of Electrical and Electronics Engineers Inc., 18th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2017, Stanford, United States, 07/9/17. https://doi.org/10.1109/COMPEL.2017.8013335

Design and evaluation of a 6.6 kW GaN converter for onboard charger applications. / Su, Gui Jia ; White, Cliff; Liang, Zhenxian.
2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017. Institute of Electrical and Electronics Engineers Inc., 2017. 8013335 (2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - White, Cliff

AU - Liang, Zhenxian

PY - 2017/8/18

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N2 - This paper presents a compact, lightweight, highly efficient, 6.6 kW isolated three-port DC-DC converter for onboard charger (OBC) applications. The converter was designed and fabricated using normally-off gallium nitride (GaN) transistors; a three-dimensional (3-D) printed cold plate; high-voltage heavy copper printed circuit board (PCB) power planes; low-voltage (14 V) and high-current PCB power planes; and a planar transformer. The prototype has a power density of 10.5 kW/L and specific power of 9.6 kW/kg. Test results show greater efficiency than a silicon-based counterpart, even at 2.5 times higher switching frequency. The isolated GaN converter was integrated with a 100 kW segmented traction inverter that uses silicon carbide MOSFETs and 3-D printed components to test the functionality as a level-2 OBC. Testing and evaluation of the integral onboard charging functionality was successfully completed at power levels up to 6.6 kW.

AB - This paper presents a compact, lightweight, highly efficient, 6.6 kW isolated three-port DC-DC converter for onboard charger (OBC) applications. The converter was designed and fabricated using normally-off gallium nitride (GaN) transistors; a three-dimensional (3-D) printed cold plate; high-voltage heavy copper printed circuit board (PCB) power planes; low-voltage (14 V) and high-current PCB power planes; and a planar transformer. The prototype has a power density of 10.5 kW/L and specific power of 9.6 kW/kg. Test results show greater efficiency than a silicon-based counterpart, even at 2.5 times higher switching frequency. The isolated GaN converter was integrated with a 100 kW segmented traction inverter that uses silicon carbide MOSFETs and 3-D printed components to test the functionality as a level-2 OBC. Testing and evaluation of the integral onboard charging functionality was successfully completed at power levels up to 6.6 kW.

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Y2 - 9 July 2017 through 12 July 2017

ER -

Su GJ , White C, Liang Z. Design and evaluation of a 6.6 kW GaN converter for onboard charger applications. In 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017. Institute of Electrical and Electronics Engineers Inc. 2017. 8013335. (2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017). doi: 10.1109/COMPEL.2017.8013335

Design and evaluation of a 6.6 kW GaN converter for onboard charger applications

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