SiC solid-state disconnect for high power system applications

Xueqing Li, Petre Alexandrov, Leonid Fursin, Christopher Dries, Jian H. Zhao

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

1 Scopus citations

Abstract

This paper reports the design and experimental demonstration of a novel bi-directional solid-state disconnect (SSD) based on Silicon Carbide (SiC) depletion-mode junction field effect transistors (JFETs) for protecting critical sensitive components in high power systems. The SSD is able to provide a fast disconnect action upon receiving a preset trip current flowing through it and has a very low insertion loss, which makes it suitable for high power applications. For the application in 150kW six-phase power inverter systems, an insertion loss of less than 0.91% and a current fall time of less than 20μs for trip currents of about 800A have been demonstrated experimentally. To the best of our knowledge, there are no other solid-state disconnects available of comparable parameters.

Original languageEnglish (US)
Title of host publicationSilicon Carbide and Related Materials 2011, ICSCRM 2011
EditorsRobert P. Devaty, Michael Dudley, T. Paul Chow, Philip G. Neudeck
PublisherTrans Tech Publications Ltd
Pages1249-1252
Number of pages4
ISBN (Print)9783037854198
DOIs
StatePublished - 2012
Event14th International Conference on Silicon Carbide and Related Materials 2011, ICSCRM 2011 - Cleveland, OH, United States
Duration: Sep 11 2011Sep 16 2011

Publication series

NameMaterials Science Forum
Volume717-720
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other14th International Conference on Silicon Carbide and Related Materials 2011, ICSCRM 2011
Country/TerritoryUnited States
CityCleveland, OH
Period9/11/119/16/11

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Circuit breaker
  • Depletion-mode JFET
  • Solid-state disconnect
  • Surge current protection

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