High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems

Andrew Hopkins, Neville McNeill, Philip Anthony, Philip Mellor

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

7 Citations (Scopus)

Abstract

This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses. This is achieved using a snubber inductor and by arranging the gate signal underlap delays in order to control charging current caused by the devices' highly non-linear output capacitance and to deactivate the intrinsic body drain diode respectively. The result is a 5-kW power converter with an estimated efficiency exceeding 99% in the power semiconductor stage and requiring no forced cooling.
LanguageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition (ECCE)
Place of PublicationPiscataway, N.J.
PublisherIEEE
ISBN (Print)978-1-4673-7151-3
DOIs
Publication statusPublished - 24 Sep 2015
Externally publishedYes
EventEnergy Conversion Congress and Exposition (ECCE), 2015 IEEE - Montreal, QC, United States
Duration: 20 Sep 201524 Sep 2015

Conference

ConferenceEnergy Conversion Congress and Exposition (ECCE), 2015 IEEE
CountryUnited States
CityMontreal, QC
Period20/09/1524/09/15

Fingerprint

DC-DC converters
Electric vehicles
Capacitors
Power converters
Diodes
Capacitance
Semiconductor materials
Cooling

Keywords

  • MOSFET
  • switches
  • quality of service
  • logic gates
  • delays
  • supercapacitors

Cite this

Hopkins, A., McNeill, N., Anthony, P., & Mellor, P. (2015). High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems. In 2015 IEEE Energy Conversion Congress and Exposition (ECCE) Piscataway, N.J.: IEEE. https://doi.org/10.1109/ECCE.2015.7310315
Hopkins, Andrew ; McNeill, Neville ; Anthony, Philip ; Mellor, Philip. / High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems. 2015 IEEE Energy Conversion Congress and Exposition (ECCE). Piscataway, N.J. : IEEE, 2015.
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abstract = "This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses. This is achieved using a snubber inductor and by arranging the gate signal underlap delays in order to control charging current caused by the devices' highly non-linear output capacitance and to deactivate the intrinsic body drain diode respectively. The result is a 5-kW power converter with an estimated efficiency exceeding 99{\%} in the power semiconductor stage and requiring no forced cooling.",
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Hopkins, A, McNeill, N, Anthony, P & Mellor, P 2015, High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems. in 2015 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, Piscataway, N.J., Energy Conversion Congress and Exposition (ECCE), 2015 IEEE, Montreal, QC, United States, 20/09/15. https://doi.org/10.1109/ECCE.2015.7310315

High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems. / Hopkins, Andrew; McNeill, Neville; Anthony, Philip; Mellor, Philip.

2015 IEEE Energy Conversion Congress and Exposition (ECCE). Piscataway, N.J. : IEEE, 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems

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AU - Anthony, Philip

AU - Mellor, Philip

PY - 2015/9/24

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N2 - This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses. This is achieved using a snubber inductor and by arranging the gate signal underlap delays in order to control charging current caused by the devices' highly non-linear output capacitance and to deactivate the intrinsic body drain diode respectively. The result is a 5-kW power converter with an estimated efficiency exceeding 99% in the power semiconductor stage and requiring no forced cooling.

AB - This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses. This is achieved using a snubber inductor and by arranging the gate signal underlap delays in order to control charging current caused by the devices' highly non-linear output capacitance and to deactivate the intrinsic body drain diode respectively. The result is a 5-kW power converter with an estimated efficiency exceeding 99% in the power semiconductor stage and requiring no forced cooling.

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KW - delays

KW - supercapacitors

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Hopkins A, McNeill N, Anthony P, Mellor P. High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems. In 2015 IEEE Energy Conversion Congress and Exposition (ECCE). Piscataway, N.J.: IEEE. 2015 https://doi.org/10.1109/ECCE.2015.7310315