Study of Fiber Grating Strain Sensing to On-Line Monitoring for Optical Cable of Electric Power System

Abstract:

Failure and security risks of communication optical cable in electric power system caused by anomalous changing of strain have been investigated, the current situation of the strain monitoring system for optical cable of electric power system has been introduced, and the principle and features of measuring the strain by using fiber grating sensing technology have been presented. The new method that can be used in strain monitoring for communication optical cable of key position in electric power system has been put forward, and fiber grating sensor scheme has been designed. Finally, several key technical problems in its practical application have been analyzed in detail.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 846-851
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.846
• Online since: September 2013
• Authors: Ji Sheng zhang, Xu Wei
• Keywords: Electrical Power, Optical Cable, Optical Fiber Grating, Strain

References

[1] Cao Ye, Liu Bo. Present research and perspective development of sensing technology with fiber gratings[J], Journal of Transducer Technology, 2005, 24(12), 1-4.

[2] Li Jun. Application of optical fiber grating temperature sensing system to on-line monitoring for power cables[J], East China Electric Power, 2005, 33(12), 61-63.

[3] Li Zhuo-ming, Li Yong-qian. Study of the application of optical cable monitoring in electric power system based on optical fiber Brillouin sensor[J], Telecommunications for electric power system, 2006, 27(161), 37-41.

[4] R. S. Krishnan, Fine structure of the Rayleigh line in amorphous substances[J], Nature, 165: 933-4, (1950).

DOI: 10.1038/165933b0

[5] Zhang Xu-she, Du Yan-liang. Application of optical fiber grating pressure sensor on monitoring of cables' tension[J], Journal of the China railway society, 2002, 24(6), 47-49.

[6] Xu M G, Geiger H, Dakin J P. Optical in-fiber grating high pressure sensor. Electron. Lett., 1993, 29: 398～399.

[7] Xue Neng, Cao Yue-xia. Application of Fiber Bragg Grating to Monitor Ice on Power Transmission Line[J], Electro-optic technology application, 2010, 25(2), 1-4.

[8] Kersey A D, Berkoff T A, Morey W W. Multiplexed fiber Bragg grating strain-sensor system with a fiber Fabry-Perot wavelength filter. Opt. Lett., 1993, 18(16): 1370～1372.

DOI: 10.1364/ol.18.001370

[9] Rivera E, Thomson D J. Accurate strain measurements with fiber Bragg grating sensors and wavelength references. Proceedings of SPIE, 2004, 5384: 250～257.

DOI: 10.1117/12.542107

[10] Huang Chun-lin, Zhang Li-ping. Application of fiber grating sensing technology in inclination monitoring of power transmission pole and tower [J], Telecommunications for electric power system, 2009, 30(204), 28-31.

[11] Xie Yang. Research on the fiber grating based high-accuracy temperature/strain sensing system [D]. North China Electric Power University Master's Thesis, 2010, 10-15.

[12] Leng J S, Asundi A. Structural health monitoring of smart composite materials by using EFPI and FBG sensors[J], Sensors and Actuators, 2003, 103(3), 330-340.

DOI: 10.1016/s0924-4247(02)00429-6

[13] Zheng Bu-xiang, Song Yong-lun. Applications of fiber Bragg grating sensor in on-line monitoring of welding stresses [J], Welding & Joining, 2008, (7), 37-42.