Modelling of hybrid DC circuit breaker based on phase-control thyristors

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Abstract

This paper presents model of hybrid direct current (DC) circuit breaker (CB) based on phase-control thyristors. The design aspects are shown and the CB parameters are calculated for a 120kV and 1.5kA DC CB assuming 10kA interrupting current. An internal control system for opening and closing is presented. The DC CB is modelled at system level in PSCAD. Simulations are used to evaluate the DC CB performance under different operating conditions such as opening and closing. The model represents well DC CB including main internal subsystems and can be employed for DC grid protection studies. It is also concluded that the thyristor-based hybrid DC CB potentially benefits in higher fault current interruption compared IGBT-based hybrid DC CB. However on the downside, simulations indicate that extinction time of phase-control thyristors results in DC CB longer opening time.

Original languageEnglish
Title of host publication2017 IEEE Power and Energy Society General Meeting, PESGM 2017
Place of PublicationChicago, IL
PublisherIEEE Explore
Pages1-5
Number of pages5
Volume2018-January
ISBN (Electronic)9781538622124
DOIs
Publication statusPublished - 29 Jan 2018
Event2017 IEEE Power and Energy Society General Meeting, PESGM 2017 - Chicago, United States
Duration: 16 Jul 201720 Jul 2017
http://www.pes-gm.org/2017/ (2017 IEEE PES General Meeting)

Publication series

NamePower & Energy Society Meeting
PublisherIEEE
ISSN (Electronic)1944-9933

Conference

Conference2017 IEEE Power and Energy Society General Meeting, PESGM 2017
CountryUnited States
CityChicago
Period16/07/1720/07/17
Internet address

Keywords

  • DC grids
  • Hybrid DC circuit breaker
  • Protection

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  • Cite this

    Far, A. J., & Jovcic, D. (2018). Modelling of hybrid DC circuit breaker based on phase-control thyristors. In 2017 IEEE Power and Energy Society General Meeting, PESGM 2017 (Vol. 2018-January, pp. 1-5). (Power & Energy Society Meeting). IEEE Explore. https://doi.org/10.1109/PESGM.2017.8274482