Title :
Development of Optical Fiber Sensors Based on Brillouin Scattering and FBG for On-Line Monitoring in Overhead Transmission Lines
Author :
Jianbin Luo ; Yanpeng Hao ; Qing Ye ; Yunqi Hao ; Licheng Li
Author_Institution :
Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China
Abstract :
A distributed on-line temperature and strain fiber sensing system based on the combined Brillouin optical time domain reflectometry (BOTDR) and fiber Bragg grating (FBG) technology is presented and investigated experimentally for monitoring the overhead transmission lines. The BOTDR sensing system can be used to measure the temperature of transmission lines (Optical Phase Conductor, OPPC or Optical Power Ground Wire, OPGW) which is helpful for monitoring the dynamic ampacity and icing forecasting. In order to effectively monitor the distortion of transmission line induced by the climatic fluctuation and natural disaster, e.g., ice coating and hurricane wind, a quasi-distributed FBG strain sensing system is connected in series with the insulator, integrated into the BOTDR system. The results showed the proposed system was effective and reliable for the monitoring of overhead transmission lines.
Keywords :
Bragg gratings; Brillouin spectra; fibre optic sensors; optical time-domain reflectometry; power overhead lines; power system measurement; spectral methods of temperature measurement; strain measurement; BOTDR; Brillouin optical time domain reflectometry; Brillouin scattering; FBG; distributed on-line temperature fiber sensing system; fiber Bragg grating; optical fiber sensor; optical phase conductor; optical power ground wire; overhead transmission line on-line monitoring; strain fiber sensing system; transmission lines temperature; Optical fiber sensors; Optical fibers; Power transmission lines; Temperature measurement; Temperature sensors; Transmission line measurements; BOTDR and FBG; distributed fiber sensor; on-line monitoring; overhead transmission lines;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2252882
