Open Access Article

Title: Intelligent monitoring of icing condition of transmission lines based on intelligent vibration model

Authors: Ge Liu; Lin Guo; Shaolei Chen; Min Zhao; Fajun Li; Jing Zhang

Addresses: State Grid Sichuan Electric Power Company, No. 366 Shuxiu West Road, Gaoxin District, Chengdu City, Sichuan Province, China ' State Grid Sichuan Electric Power Company, No. 366 Shuxiu West Road, Gaoxin District, Chengdu City, Sichuan Province, China ' State Grid Sichuan Electric Power Company, No. 366 Shuxiu West Road, Gaoxin District, Chengdu City, Sichuan Province, China ' State Grid Sichuan Electric Power Company Information and Communication Company, No. 16 Jinhui West Second Street, Gaoxin District, Chengdu City, Sichuan Province, China ' State Grid Bazhong Power Supply Company, 55 Jiangbei Avenue, Bazhong City, Sichuan Province, China ' State Grid Yibin Electric Power Supply Company, No. 17, Middle Section of Changjiang Avenue, Xuzhou District, YiBin City, Sichuan Province, Chengdu, China

Abstract: Icing will not only increase the weight of the conductor to make the conductor bear greater vertical gravity and make the axial tension greater when the conductor gallops, but also increase the cross-sectional area of the conductor to increase the aerodynamic force of the conductor. Starting from the basic principles of distributed optical fibres and measurable physical quantities, this paper uses the method of combining theoretical analysis and simulation modelling to establish the mathematical and physical models and signal characteristic models of the multi-dimensional physical quantities (temperature, strain, vibration and light polarisation state) of distributed optical fibre monitoring and line icing and wind vibration events. Moreover, this paper constructs a multi-parameter distributed optical fibre sensing system according to the monitoring requirements, which solves the problem of low signal-to-noise ratio in long-distance monitoring. Finally, through experimental verification, it is found that the model proposed in this paper has a good intelligent monitoring effect on the icing status of transmission lines, which can provide a reference for real-time monitoring of transmission lines.

Keywords: vibration model; transmission lines; icing; intelligent monitoring.

DOI: 10.1504/IJICT.2025.144456

International Journal of Information and Communication Technology, 2025 Vol.26 No.3, pp.47 - 71

Received: 12 Aug 2024
Accepted: 14 Nov 2024

Published online: 13 Feb 2025 *