Three-phase short-circuit fault locator in loop shaped distribution system with inverter based distributed generations

Daisuke Iioka, Yasuhiro Hayashi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A fault locator system in a loop-shaped distribution system with inverter based distributed generations is proposed. The fault locator system is based on measured impedances calculated by voltage and current at a transformer feeder of the distribution substation and incoming feeder of the inverter based distributed generations. The validity of the fault locator system was investigated by PSCAD/EMTDC simulations. It is assumed that a three-phase short-circuit fault occurs in the loop-shaped distribution system and the proposed fault locator system estimates the fault location. The estimation error in regard to fault location was described on the basis of simulation results. A primary factor in the estimation error was identified as the rate of change of measured impedance with fault location. It was found that the effect of significant digits of the measured impedance on the estimation error in regard to the fault location.

    Original languageEnglish
    Title of host publication17th Power Systems Computation Conference, PSCC 2011
    PublisherPower Systems Computation Conference ( PSCC )
    ISBN (Print)9789175012575
    Publication statusPublished - 2011
    Event17th Power Systems Computation Conference, PSCC 2011 - Stockholm, Sweden
    Duration: 2011 Aug 222011 Aug 26

    Other

    Other17th Power Systems Computation Conference, PSCC 2011
    CountrySweden
    CityStockholm
    Period11/8/2211/8/26

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    Keywords

    • Distribution system
    • Inverter based distributed generation
    • Measured impedance
    • Protection system

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Computer Science Applications
    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

    Cite this

    Iioka, D., & Hayashi, Y. (2011). Three-phase short-circuit fault locator in loop shaped distribution system with inverter based distributed generations. In 17th Power Systems Computation Conference, PSCC 2011 Power Systems Computation Conference ( PSCC ).