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A Fiber Bragg Grating-Based Dynamic Tension Detection System for Overhead Transmission Line Galloping.

Guo-Ming Ma1, Ya-Bo Li2, Nai-Qiang Mao3

  • 1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China. ncepumgm@ncepu.edu.cn.

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Summary
This summary is machine-generated.

A new optical remote passive system effectively monitors overhead transmission line (OHTL) galloping, overcoming limitations of traditional sensors. This innovation enhances safety and reliability in power infrastructure monitoring.

Keywords:
galloping measurementoptical fiber sensorsoverhead transmission linesremote sensingtension

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Area of Science:

  • Electrical Engineering
  • Mechanical Engineering
  • Materials Science

Background:

  • Galloping of overhead transmission lines (OHTLs) poses risks like conductor breakage and tower collapse.
  • Existing monitoring systems suffer from electromagnetic interference, onsite power requirements, and short lifespans.

Purpose of the Study:

  • To introduce a novel optical remote passive measuring system for on-line OHTL galloping detection.
  • To address limitations of conventional monitoring systems, enhancing long-distance distribution capabilities.

Main Methods:

  • Development of an 'S' type elastic element structure with flanges to improve tension sensing and dynamic response range.
  • Conducting tension experiments to evaluate dynamic response characteristics and long-term stability (30 min continuous stretching).
  • Testing the sensor's dynamic performance on a 70 m conductor model oscillated at various frequencies.

Main Results:

  • The proposed sensor demonstrates suitability for OHTL galloping detection.
  • Experimental results validate the sensor's dynamic response and long-term stability.
  • The system shows promise for effective OHTL galloping monitoring.

Conclusions:

  • The novel optical remote passive system offers a superior alternative for OHTL galloping monitoring.
  • Advantages include easy installation, no flashover risk, distributed monitoring, better bandwidth, improved accuracy, and higher reliability compared to conventional sensors.