Developing soft switching in solid-state circuit breakers

Reza Kheirollahi, Zhonghao Dongye, Hua Zhang, Shuyan Zhao, Fei Lu

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

Abstract

This paper aims to apply silicon-carbide (SiC) MOSFETs to solid-state circuit breakers (SSCBs) including active injection circuits (AIRCs) for DC systems. SiC MOSFETs are employed in main and auxiliary circuits to provide a fast response time and compact design. Benefiting from AIRCs, fault current is reduced to zero in the main switch during DC current interruption. The obtained soft-switching helps to mitigate the effects of parasitic components and utilize the fully capabilities of the SiC MOSFETs in SSCBs. To select the optimized values of the passive components in the auxiliary branch, a design procedure is developed. The presented topology is verified using simulations of 4kV/100A in LTspice environment and experiments of a downsized 380V/15A prototype with a response time of 2.8μs.

Original languageEnglish (US)
Title of host publication2021 IEEE Applied Power Electronics Conference and Exposition, APEC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1117-1121
Number of pages5
ISBN (Electronic)9781728189499
DOIs
StatePublished - Jun 14 2021
Externally publishedYes
Event36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021 - Virtual, Online, United States
Duration: Jun 14 2021Jun 17 2021

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021
Country/TerritoryUnited States
CityVirtual, Online
Period6/14/216/17/21

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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