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Fault Warning and Analysis of Power OPGW Optical Cables Based on BOTDR/A

  • Xia Meng
  • , Tang Xiaohui
  • , Wang Ying
  • , Li Can
  • , Jiang Taofei
  • , Guan Peng
  • , Sui Jinglin
  • , Dong Yongkang*
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Real Photonics Co. Ltd.
  • State Grid Corporation Information and Communication Branch

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

Abstract

Aiming at the current demand for precise fault location and early warning of power OPGW optical cables, a method of OPGW optical cable fault location and early warning based on BOTDR/A technology is proposed. This paper proposes a method for locating the connection pole based on the DBSCAN algorithm. The connection point is located through the Brillouin frequency shift curve, and then the fault is accurately located. The Brillouin frequency shift is linearly affected by temperature and strain, which are linear relationships and cross-sensitive. The isolation of the OPGW cable strain and temperature is achieved by the identification result of the fiber optic splicing point. The abnormal region is positioned and warned by strain measurement. Field picture collections are performed for typical abnormal strain areas, and the positioning and cause of fault warning is confirmed. The OPGW fault positioning and early warning method proposed herein, significantly improves the efficiency of fault processing and improves the operational reliability of OPGW optical cables.

Original languageEnglish
Title of host publication2021 International Conference on Optical Instruments and Technology
Subtitle of host publicationOptical Sensors and Applications
EditorsXuping Zhang, Yuncai Wang, Hai Xiao
PublisherSPIE
ISBN (Electronic)9781510655638
DOIs
StatePublished - 2022
Event2021 International Conference on Optical Instruments and Technology: Optical Sensors and Applications - Virtual, Online, China
Duration: 8 Apr 202210 Apr 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12279
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2021 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Country/TerritoryChina
CityVirtual, Online
Period8/04/2210/04/22

Keywords

  • BOTDA
  • BOTDR
  • DBSCAN
  • OPGW
  • fault location
  • fault warning

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