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

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

169 Downloads (Pure)

Abstrakt

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.
OriginalsprogEngelsk
TidsskriftThe Journal of Engineering
Vol/bind2018
Udgave nummer15
Sider (fra-til)1245-1251
Antal sider7
ISSN2051-3305
DOI
StatusUdgivet - okt. 2018
BegivenhedThe 14th International Conference on Developments in Power System Protection - The Europa Hotel, Belfast, Storbritannien
Varighed: 12 mar. 201815 mar. 2018
Konferencens nummer: 14

Konference

KonferenceThe 14th International Conference on Developments in Power System Protection
Nummer14
LokationThe Europa Hotel
LandStorbritannien
ByBelfast
Periode12/03/201815/03/2018

Fingeraftryk Dyk ned i forskningsemnerne om 'Utilisation of symmetrical components in a communication-based protection for loop MV feeders with variable short-circuit power'. Sammen danner de et unikt fingeraftryk.

Citationsformater