Decision tree aided travelling wave based fault section identification and location scheme for multi-terminal transmission lines. (March 2019)

• Record Type: Journal Article
• Authors: Chaitanya, B.K.; Yadav, Anamika
• Is Part Of: Measurement. Volume 135(2019)
• Page Start: 312
• Page End: 322
• Publication Date: 2019-03
• Subjects: Decision tree -- Fault section identification -- Fault location -- Multi-terminal transmission lines -- Travelling wave; Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2018.11.069
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: Fault section identification and fault location scheme is proposed for multi-terminal transmission lines. The proposed scheme is very simple as it is based on estimation of travel time. It estimates fault distance very precisely with an error of ±1%. Its performance remains robust to wide variation in system configuration and fault parameters. Abstract: In this paper, decision tree aided travelling wave (TW) based fault section identification and location scheme has been proposed for multi-terminal transmission lines (MTTLs). The difference between fault inception time and travelling wave arrival time recorded is termed as travel time (TT) which is used to identify the faulty section. The decision is based on simple rule comparing the measured TT with the actual TT possible for the wave to travel along an individual transmission line. Upon recognizing the faulty section, the two adjacent arrival times of the faulty section can be used to estimate the fault location. The proposed scheme can also solve different issues that are prevailing in different transmission networks such as two-terminal transmission lines, series compensated transmission lines (SCTLs) and MTTLs. The performance of the proposed scheme is verified for different challenging fault scenarios by varying different fault parameters.