Design and performance of a capacitor commutated DC circuit breaker

Meng Zhou, Wang Xiang, Jinyu Wen, Weixing Lin

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

Abstract

Hybrid high voltage direct current circuit breakers (DCCBs) are capable of interrupting a fault current within a few milliseconds, but this technology suffers from high capital costs, especially in a meshed HVDC grid. To increase the economic competitiveness of hybrid DCCBs, this paper proposes a capacitor commutated DC circuit breaker (CCCB). The CCCB mainly comprises an auxiliary branch with a fast disconnector in series with semiconductor devices and a main branch with series connection of a DC capacitor and diode valves. This paper provides a detailed depiction of the CCCB. The topology and operating principles are discussed. The general sizing method for the main components in the CCCB is detailed. Furthermore, several extended topologies are proposed to further reduce the semiconductor cost and on-state operation power loss. Extensive simulations verify the DC fault isolation of the CCCB.

Original languageEnglish
Title of host publication2018 IEEE Power and Energy Society General Meeting, PESGM 2018
Number of pages5
Volume2018-August
ISBN (Electronic)9781538677032
DOIs
Publication statusPublished - 21 Dec 2018
Event2018 IEEE Power and Energy Society General Meeting, PESGM 2018 - Portland, United States
Duration: 5 Aug 201810 Aug 2018

Conference

Conference2018 IEEE Power and Energy Society General Meeting, PESGM 2018
CountryUnited States
CityPortland
Period5/08/1810/08/18

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Keywords

  • DC circuit breaker
  • DC grids
  • HVDC converters
  • HVDC transmission

Cite this

Zhou, M., Xiang, W., Wen, J., & Lin, W. (2018). Design and performance of a capacitor commutated DC circuit breaker. In 2018 IEEE Power and Energy Society General Meeting, PESGM 2018 (Vol. 2018-August). [8585990] https://doi.org/10.1109/PESGM.2018.8585990