An adaptive single phase reclosing algorithm based on the mathematical morphology

Tao Zheng, Min Liu, Gary Preston, V. V. Terzija

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Single-phase Auto-reclosing (SPAR) is widely used on EHV/UHV transmission lines to improve power system reliability. However, reclosing on to a permanent fault can adversely affect the system stability and damage generators and other equipment connected to the line. To solve this problem, a new algorithm for improving the single-phase adaptive autoreclosure is presented in this paper. Firstly, primary and secondary arc models are introduced, then a series of simulations are carried out based on the arc models. By analyzing the simulation results, a new method to discriminate between transient faults and permanent faults is proposed. Since fault arcs are associated with transient faults, and the frequent re-ignitions of the secondary arc cause distortions in the line voltage, a reliable single-phase autoreclosure can be achieved by measuring the distortion in the line voltage waveform. In order to improve the distortion detection, Multi-resolution Morphological Gradient (MMG) has been adopted. Finally, numerous simulation results show that the algorithm proposed in this paper can be used as an effective tool for realizing the SPAR.

Original languageEnglish
Title of host publication2010 5th International Conference on Critical Infrastructure, CRIS 2010 - Proceedings
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 5th International Conference on Critical Infrastructure, CRIS 2010 - Beijing, China
Duration: 20 Sep 201022 Sep 2010

Publication series

Name2010 5th International Conference on Critical Infrastructure, CRIS 2010 - Proceedings

Conference

Conference2010 5th International Conference on Critical Infrastructure, CRIS 2010
Country/TerritoryChina
CityBeijing
Period20/09/1022/09/10

Keywords

  • Arc models
  • Multi-resolution morphological gradient
  • Single-phase autoreclosure
  • Transient fault

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