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Fast Protection of Strong Power Systems With Fault Current Limiters and PLL-Aided Fault Detection
KTH, School of Electrical Engineering (EES), Electric Power Systems.ORCID iD: 0000-0002-8189-2420
2011 (English)In: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 1937-4208, Vol. 26, no 3, 1538-1544 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, a new method is proposed that can be used to discriminate faults from switching transients. The method is primarily intended for use in systems where fast fault detection and fast fault clearing before the first peak of the fault current are required. An industrial system, in which high short-circuit power is desired but in which high short-circuit currents cannot be tolerated is an example of such a system. A phase-locked loop (PLL) is used to perform the discrimination. Computer simulations have been performed and it has been demonstrated that the output of the PLL is completely different for a fault compared to a switching transient. This difference can be used for discrimination between a fault and a switching transient.

Place, publisher, year, edition, pages
2011. Vol. 26, no 3, 1538-1544 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-36868DOI: 10.1109/TPWRD.2011.2107530ISI: 000292167800027Scopus ID: 2-s2.0-79959707076OAI: oai:DiVA.org:kth-36868DiVA: diva2:431300
Note
QC 20110719Available from: 2011-07-19 Created: 2011-07-18 Last updated: 2017-12-08Bibliographically approved

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Söder, Lennart

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