A fault-location algorithm for series-compensated double-circuit transmission lines using the distributed parameter line model

Ning Kang, Jiaxiong Chen, Yuan Liao

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

A new fault-location algorithm for series-compensated double-circuit transmission lines utilizing two-terminal unsynchronized voltage and current measurements is presented in this paper. The mutual coupling between the parallel lines in the zero-sequence network is fully considered. The distributed parameter line model is adopted to fully take into account the shunt capacitance of the line. By formulating voltages and currents at the fault point in terms of the unknown fault location, boundary conditions under different fault types are used to derive the fault location. Two subroutines assuming the fault occurs on the left or right side of the series compensator are developed and the principle to identify the correct fault-location estimate is described. Matlab SimPowerSystems is employed to generate cases under diverse fault conditions for validating the proposed fault-ocation algorithm. Evaluation studies have shown that the proposed algorithm has achieved quite accurate results.

Original languageEnglish
Article number6867395
Pages (from-to)360-367
Number of pages8
JournalIEEE Transactions on Power Delivery
Volume30
Issue number1
DOIs
StatePublished - Feb 1 2015

Keywords

  • Current phasors
  • Double-circuit transmission line
  • Fault location
  • Series compensation
  • Two terminal
  • Voltage phasors

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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