Utilisation of symmetrical components in a communication-based protection for loop MV feeders with variable short-circuit power

Catalin Iosif Ciontea, Claus Leth Bak, Frede Blaabjerg, Qiteng Hong, Campbell Booth, Kjeld Kilsgaard Madsen

Research output: Contribution to journalArticle

Abstract

Variability of the available short-circuit power also implies variation of the fault level, which can potentially cause several protection problems in the electric networks. In this paper, a novel protection method that is insensitive to the fault level changes caused by variable short-circuit power is presented. It relies on utilisation of symmetrical components of the short-circuit currents and on communication between the protection relays. The proposed method addresses the Single Phase to Ground (SPG) faults occurring in directly grounded distribution networks, with focus on closed-loop Medium Voltage (MV) feeders. Case studies are presented, which demonstrate that the proposed protection scheme is capable of effectively detecting the SPG faults in closed-loop feeders with variable short-circuit power
LanguageEnglish
Pages1245-1251
Number of pages7
JournalThe Journal of Engineering
Volume2018
Issue number15
Early online date18 Jul 2018
DOIs
Publication statusPublished - 31 Oct 2018
EventDPSP 2018: The 14th International Conference on Developments in Power System Protection (DPSP), Belfast, UK - Belfast, United Kingdom
Duration: 12 Mar 201815 Mar 2018

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Short circuit currents
Communication
Electric potential
Relay protection
Circuit theory
Electric power distribution

Keywords

  • symmetrical components
  • communication-based protection
  • phase to ground fault
  • loop feeder
  • variable fault currents

Cite this

Ciontea, Catalin Iosif ; Bak, Claus Leth ; Blaabjerg, Frede ; Hong, Qiteng ; Booth, Campbell ; Madsen, Kjeld Kilsgaard. / Utilisation of symmetrical components in a communication-based protection for loop MV feeders with variable short-circuit power. In: The Journal of Engineering. 2018 ; Vol. 2018, No. 15. pp. 1245-1251.
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abstract = "Variability of the available short-circuit power also implies variation of the fault level, which can potentially cause several protection problems in the electric networks. In this paper, a novel protection method that is insensitive to the fault level changes caused by variable short-circuit power is presented. It relies on utilisation of symmetrical components of the short-circuit currents and on communication between the protection relays. The proposed method addresses the Single Phase to Ground (SPG) faults occurring in directly grounded distribution networks, with focus on closed-loop Medium Voltage (MV) feeders. Case studies are presented, which demonstrate that the proposed protection scheme is capable of effectively detecting the SPG faults in closed-loop feeders with variable short-circuit power",
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Utilisation of symmetrical components in a communication-based protection for loop MV feeders with variable short-circuit power. / Ciontea, Catalin Iosif; Bak, Claus Leth; Blaabjerg, Frede; Hong, Qiteng; Booth, Campbell; Madsen, Kjeld Kilsgaard.

In: The Journal of Engineering, Vol. 2018, No. 15, 31.10.2018, p. 1245-1251.

Research output: Contribution to journalArticle

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AU - Booth, Campbell

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