Transmission line icing thickness detection based on distributed optical fiber sensing and Φ-OTDR

Degui Yao; Yun Liang; Zhe Li; Yang Gao

doi:10.1117/12.3029379

6 May 2024 Transmission line icing thickness detection based on distributed optical fiber sensing and Φ-OTDR

Degui Yao, Yun Liang, Zhe Li, Yang Gao

Proceedings Volume 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024); 1310735 (2024) https://doi.org/10.1117/12.3029379
Event: Fourth International Conference on Sensors and Information Technology (ICSI 2024), 2024, Xiamen, China

Abstract

To reduce the impact of transmission line icing on the safety of power grid, this article proposes a transmission line icing thickness detection technology based on distributed optical fiber sensing and Φ-OTDR. Firstly, the fundamental physical characteristics changes of transmission line and the frequency characteristics changes of internal signal under transmission line icing are analyzed. Secondly, this article analyzes the distributed optical fiber sensing signal to obtain the phase difference of Ray-leigh backscatter (RBS) signal by Φ-OTDR. By performing a fast Fourier transform on the phase difference of RBS signal during vibration, we can observe the natural frequency of transmission line. On the basis of the natural frequency relationship before and after icing, transmission line icing thickness can be calculated. Finally, simulation results demonstrate the effectiveness of the proposed technology.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Degui Yao, Yun Liang, Zhe Li, and Yang Gao "Transmission line icing thickness detection based on distributed optical fiber sensing and Φ-OTDR", Proc. SPIE 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024), 1310735 (6 May 2024); https://doi.org/10.1117/12.3029379

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