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    Voltage-current technique to identify fault location within long transmission lines

    Access Status
    Open access via publisher
    Authors
    Abu-Siada, Ahmed
    Mosaad, M.I.
    Mir, S.
    Date
    2020
    Type
    Journal Article
    
    Metadata
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    Citation
    Abu-Siada, A. and Mosaad, M.I. and Mir, S. 2020. Voltage-current technique to identify fault location within long transmission lines. IET Generation, Transmission and Distribution. 14 (23): pp. 5588-5596.
    Source Title
    IET Generation, Transmission and Distribution
    DOI
    10.1049/iet-gtd.2020.1012
    ISSN
    1751-8687
    Faculty
    Faculty of Science and Engineering
    School
    School of Elec Eng, Comp and Math Sci (EECMS)
    URI
    http://hdl.handle.net/20.500.11937/84245
    Collection
    • Curtin Research Publications
    Abstract

    Current industry practice to identify fault location in transmission lines is based on visual inspection, travelling waves, and line impedance measurement. Unfortunately, these techniques are only developed to detect the fault location upon its occurrence without the ability to predict abnormal events that usually precede major faults and issue a timely warning signal to avoid potential consequences for power line failures. Furthermore, the current fault locating techniques exhibit some drawbacks that limit their wide practical implementation. This includes cost, access to required data, and low accuracy when employed for specific power line topologies. This study is aimed at presenting and validating a new cost-effective technique based on the line voltage-current characteristics to predict and identify the location of various abnormal and fault events in real-time. By measuring the currents and voltages at both ends of the line, a unique line fingerprint can be identified. Any change in this fingerprint can be detected and analysed by a software installed in the control centre in real-time to identify the location, type, and level of the abnormal events or emerging faults. Robustness of the proposed technique is assessed through simulation analysis conducted on various case studies along with a practical case study.

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