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Reliability Assessment of Protection Schemes for Series Compensated Transmission Lines
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0002-3463-7793
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0003-0759-4406
2019 (English)In: 4th International Conference on System Reliability and Safety (ICSRS), Rome, Italy, 2019Conference paper, Published paper (Refereed)
Abstract [en]

Series capacitors are used in transmission lines for enhancing power transmission limit. However, they complicate the line’s protection due to impedance change of the line, voltage inversion, current inversion and sub-synchronous oscillation. Distance and differential protections are used in different arrangements in transmission line protection. Often they are used together as main and backup protection. In this paper, the fault tree method is used to compare the reliability of three common transmission line protection schemes. The schemes considered here are distance (main)-distance (backup)(Z; Z), differential (main)-distance (backup) (delta;Z) and differential (main)-differential (backup) (delta;delta). Fault trees are used to calculate the reliability of protection schemes in terms of both unavailability and failure rate. The analyses show that, for series compensated lines, using distance protection reduces protection system reliability. Differential protection performs best in terms of reliability despite depending entirely on communication.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Series Compensation, Reliability, Unavailability, Failure Rate, Distance Protection, Differential Protection
National Category
Engineering and Technology
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-265022OAI: oai:DiVA.org:kth-265022DiVA, id: diva2:1377087
Conference
4th International Conference on System Reliability and Safety (ICSRS), Rome, Italy, November 20-22, 2019
Projects
FPS12, SweGRIDS
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy Storage, FPS12
Note

QC 20191211

Available from: 2019-12-11 Created: 2019-12-11 Last updated: 2019-12-13Bibliographically approved

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Authority records BETA

Hoq, Md TanbhirHabib, Md ZakariaShayesteh, EbrahimTaylor, Nathaniel

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CiteExportLink to record
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