Signal processing applications to current traveling wave fault locators for EHV transmission networks

A. Elhaffar*, M. Lehtonen

*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

Traveling Waves Recorders (TWRs) are used to accurately find the location of different faults in power transmission networks. These recorders are installed at few high voltage buses where current traveling waves (CTWs) can be extracted. The CTW signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the CTW has been calculated considering Dijkstra algorithm to select the nearest TWRs to the fault point. Wavelet Transform is used to find the highest energy of the details frequency band of the CTW signals. Optimum details level is extracted based on its energy content. The mean delay is calculated from the first packet of details' power profile for each TWR to be used in a double-end fault location algorithm. Time delay at the maximum power delay profile shows good results compared to the mean time delay.

Original languageEnglish
Title of host publicationICSPC 2007 Proceedings - 2007 IEEE International Conference on Signal Processing and Communications
Pages616-619
Number of pages4
DOIs
Publication statusPublished - 2007
Event2007 IEEE International Conference on Signal Processing and Communications, ICSPC 2007 - Dubai, United Arab Emirates
Duration: Nov 14 2007Nov 27 2007

Other

Other2007 IEEE International Conference on Signal Processing and Communications, ICSPC 2007
CountryUnited Arab Emirates
CityDubai
Period11/14/0711/27/07

Keywords

  • Fault location
  • Transient analysis
  • Traveling wave devices
  • wavelet transform

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Communication

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