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 (Electronic)9789175012575
Publication statusPublished - 2011 Jan 1
Externally publishedYes
Event17th Power Systems Computation Conference, PSCC 2011 - Stockholm, Sweden
Duration: 2011 Aug 222011 Aug 26

Publication series

Name17th Power Systems Computation Conference, PSCC 2011

Other

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

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

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  • 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 (17th Power Systems Computation Conference, PSCC 2011). Power Systems Computation Conference ( PSCC ).