Distributed condition monitoring techniques of optical fiber composite power cable in smart grid

Zhihui Sun; Yuan Liu; Chang Wang; Tongyu Liu

doi:10.1117/12.906602

23 November 2011 Distributed condition monitoring techniques of optical fiber composite power cable in smart grid

Zhihui Sun, Yuan Liu, Chang Wang, Tongyu Liu

Proceedings Volume 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 819919 (2011) https://doi.org/10.1117/12.906602
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

Optical fiber composite power cable such as optical phase conductor (OPPC) is significant for the development of smart grid. This paper discusses the distributed cable condition monitoring techniques of the OPPC, which adopts embedded single-mode fiber as the sensing medium. By applying optical time domain reflection and laser Raman scattering, high-resolution spatial positioning and high-precision distributed temperature measurement is executed. And the OPPC cable condition parameters including temperature and its location, current carrying capacity, and location of fracture and loss can be monitored online. OPPC cable distributed condition monitoring experimental system is set up, and the main parts including pulsed fiber laser, weak Raman signal reception, high speed acquisition and cumulative average processing, temperature demodulation and current carrying capacity analysis are introduced. The distributed cable condition monitoring techniques of the OPPC is significant for power transmission management and security.

Citation Download Citation

Zhihui Sun, Yuan Liu, Chang Wang, and Tongyu Liu "Distributed condition monitoring techniques of optical fiber composite power cable in smart grid", Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 819919 (23 November 2011); https://doi.org/10.1117/12.906602

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KEYWORDS

Raman spectroscopy

Signal processing

Pulsed fiber lasers

Avalanche photodetectors

Demodulation

Pulsed laser operation

Single mode fibers

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