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 journalConference article in JournalResearchpeer-review

157 Downloads (Pure)

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 study, 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.
Original languageEnglish
JournalThe Journal of Engineering
Volume2018
Issue number15
Pages (from-to)1245-1251
Number of pages7
ISSN2051-3305
DOIs
Publication statusPublished - Oct 2018
EventThe 14th International Conference on Developments in Power System Protection - The Europa Hotel, Belfast, United Kingdom
Duration: 12 Mar 201815 Mar 2018
Conference number: 14

Conference

ConferenceThe 14th International Conference on Developments in Power System Protection
Number14
LocationThe Europa Hotel
CountryUnited Kingdom
CityBelfast
Period12/03/201815/03/2018

Keywords

  • Symmetrical components
  • Communication-based protection
  • Phase to ground fault
  • Loop feeder
  • Variable fault currents

Fingerprint Dive into the research topics of 'Utilisation of symmetrical components in a communication-based protection for loop MV feeders with variable short-circuit power'. Together they form a unique fingerprint.

Cite this