The use of symmetrical components in electrical protection

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Abstrakt

In some situations, the symmetrical components of voltage and current are more sensitive to electric faults compared to their phase-domain counterparts. For this reason, several protection relays operate on symmetrical components and many protection engineers continue to develop protection algorithms that rely on these quantities. This paper reviews the literature on the use of symmetrical components in electrical protection and sorts it in categories covering line protection, generator/motor protection, transformer protection and protection of distribution networks and microgrids. The review shows that symmetrical components are used by over-current/-voltage elements, distance relaying, directional algorithms, differential schemes, adaptive protection and protection algorithms based on relationships of symmetrical components. This paper also presents, in short, the theoretical background of symmetrical components and their derivation from the phase-domain quantities.
OriginalsprogEngelsk
TitelProceedings of 2019 72nd Conference for Protective Relay Engineers (CPRE)
ForlagIEEE Press
Publikationsdatomar. 2019
Artikelnummer8765870
DOI
StatusUdgivet - mar. 2019
Udgivet eksterntJa
Begivenhed2019 72nd Annual Conference for Protective Relay Engineers - College Station, USA
Varighed: 25 mar. 201928 mar. 2019
https://prorelay.tamu.edu/

Konference

Konference2019 72nd Annual Conference for Protective Relay Engineers
LandUSA
ByCollege Station
Periode25/03/201928/03/2019
Internetadresse

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