基于分布式动态应变传感的光纤复合相线脱冰跳跃监测技术

doi:10.19595/j.cnki.1000-6753.tces.250368

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Abstract De-icing jump in overhead transmission lines may lead to serious consequences such as inter-phase short circuits, conductor damage, and even severe accidents involving conductor breakage and tower collapse. Therefore, real-time monitoring of de-icing jumps is crucial. However, traditional monitoring methods predominantly focus on early-stage predictive alarms and post-event fault analysis, lacking real-time online monitoring capabilities with high sampling rates, thus making it difficult to promptly evaluate the severity of damage to transmission lines. To address this issue, this paper integrates the structural mechanics characteristics of transmission lines with phase-sensitive optical time-domain reflectometry (Φ-OTDR) technology and proposes a monitoring model specifically tailored for optical fiber composite phase conductors. The proposed model can accurately localize de-icing spans and points, and effectively monitor the de-icing rate and maximum height of de-icing jumps in real-time.
Initially, based on the capability of phase-sensitive optical time-domain reflectometry to achieve distributed sensing of dynamic strain along optical fiber composite phase conductors, a mathematical relationship between the internal optical fiber phase variations and strain distributions along the conductor is established. Using this foundational relationship, a methodology for precisely localizing spans affected by de-icing jumps and identifying specific de-icing points within these spans is proposed. Subsequently, by analyzing the variations in vibration characteristics under different ice-loading conditions before and after de-icing events, a correlation between the de-icing rate and the changes in natural frequencies of various vibration modes is developed. Finally, employing the conductor deflection curve equation and integrating Φ-OTDR technology, the paper establishes a model connecting the displacement at any point along the transmission line at any given moment with the spatial differential phase variations within the optical fiber embedded in the de-icing span, thereby introducing a method to monitor the maximum height of de-icing jumps.
Experimental tests conducted on a simulated de-icing jump platform demonstrate that significant differences exist in the phase-change patterns of Rayleigh backscattering light within optical fibers embedded in spans undergoing de-icing compared to spans without such events. This distinctive difference enables effective localization of de-icing spans. Furthermore, through detailed analysis of spatial phase variations along sensing regions, precise identification of de-icing points within spans is achievable, with localization errors less than 5 meters. Experimental findings also indicate that as the ice load increases, the natural frequencies of various vibration modes of the conductor decrease correspondingly. The average relative error in measuring the de-icing rate is approximately 7.86%, with errors diminishing progressively as the severity of the de-icing increases. Additionally, the strain variations caused by de-icing jumps within the conductor are attenuated by excess optical fiber length and fiber grease. Introducing correction coefficients can mitigate these influences to a significant degree, ultimately yielding an average relative error of 14.13% in measuring the maximum height of de-icing jumps. This confirms the capability of the proposed model for real-time monitoring of de-icing jump height in overhead transmission lines.
The experimental results support several conclusions: (1) The model enables precise localization of spans affected by de-icing jumps and accurately identifies specific de-icing points by analyzing spatial differential phase variations along the conductor. (2) The model reliably monitors the de-icing rate, with measurement accuracy improving as the severity of de-icing events increases. (3) Based on Φ-OTDR technology and considering the structural characteristics of optical fiber composite phase conductors, this model can achieve online monitoring of the maximum height of de-icing jumps in transmission lines under simultaneous de-icing conditions caused by different de-icing excitations.

Key words： De-icing jump phase-sensitive optical time-domain reflectometry distributed sensing de-icing jump height

Received: 10 March 2025

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	Dong Naizhen
	Xiao Hai
	Liu Yunpeng
	Fan Xiaozhou

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Dong Naizhen,Xiao Hai,Liu Yunpeng等. De-Icing Jump Monitoring Technology of Optical Fiber Composite Phase Conductor Based on Distributed Dynamic Strain Sensing[J]. Transactions of China Electrotechnical Society, 2026, 41(7): 2484-2497.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.250368 OR https://dgjsxb.ces-transaction.com/EN/Y2026/V41/I7/2484

[1] 黄亚飞, 陈阳宁, 杨鑫, 等. 基于遮蔽效应分析的分裂导线覆冰特性及快速计算方法[J]. 电工技术学报, 2025, 40(9): 2852-2863.
Huang Yafei, Chen Yangning, Yang Xin, et al.Icing characteristics and rapid calculating method of bundled conductor of transmission line based on shadowing effect analysis[J]. Transactions of China Electrotech-nical Society, 2025, 40(9): 2852-2863.
[2] 王力, 胡琴, 舒立春, 等. 荷叶超疏水表面防覆冰试验及机理研究[J]. 电工技术学报, 2025, 40(3): 855-863.
Wang Li, Hu Qin, Shu Lichun, et al.Experimental and mechanistic study on anti-icing of superhydrophobic surface of lotus leaf[J]. Transactions of China Electrotechnical Society, 2025, 40(3): 855-863.
[3] 牛涛, 黄骞谦, 方斯顿, 等. 基于多光谱卫星遥感的输电网冰灾场景时序建模与韧性提升策略优化[J]. 电工技术学报, 2025, 40(13): 4200-4215, 4305.
Niu Tao, Huang Qianqian, Fang Sidun, et al.Temporal modeling of ice disaster scenarios and optimization of resilience enhancement strategies in power transmission network based on multispectral satellite remote sensing data[J]. Transactions of China Electrotechnical Society, 2025, 40(13): 4200-4215, 4305.
[4] 舒印彪, 陈国平, 贺静波, 等. 构建以新能源为主体的新型电力系统框架研究[J]. 中国工程科学, 2021, 23(6): 61-69.
Shu Yinbiao, Chen Guoping, He Jingbo, et al.Building a new electric power system based on new energy sources[J]. Strategic Study of CAE, 2021, 23(6): 61-69.
[5] 冯艺萱, 边晓燕, 陈雯, 等. 新型电力系统灵活性资源成本回收机制分析及挑战[J]. 电工技术学报, 2025, 40(21): 7013-7028.
Feng Yixuan, Bian Xiaoyan, Chen Wen, et al.Analysis and challenges of new power system flexibility resource cost recovery mechanisms[J]. Transactions of China Electrotechnical Society, 2025, 40(21): 7013-7028.
[6] 张旭苹, 武剑灵, 单媛媛, 等. 基于分布式光纤传感技术的智能电网输电线路在线监测[J]. 光电子技术, 2017, 37(4): 221-229.
Zhang Xuping, Wu Jianling, Shan Yuanyuan, et al.On-line monitoring of power transmission lines in smart grid based on distributed optical fiber sensing technology[J]. Optoelectronic Technology, 2017, 37(4): 221-229.
[7] 王爽, 马天缘, 唐波, 等. 非均匀覆冰下输电导线的非均匀脱冰动力特性[J/OL]. 高压电器, 2024: 1-18[2025-01-08]. https://kns.cnki.net/KCMS/detail/detail.aspx?filename=GYDQ20241216001&dbname=CJFD&dbcode=CJFQ.
Wang Shuang, Ma Tianyuan, Tang Bo, et al. Dynamic characteristics of non-uniform ice-shedding of transmission lines under non-uniform icing[J/OL]. High Voltage Apparatus, 2024: 1-18[2025-01-08]. https://kns.cnki.net/KCMS/detail/detail.aspx?filename=GYDQ20241216001&dbname=CJFD&dbcode=CJFQ.
[8] 张璐, 李新民, 李伟, 等. 特高压直流线路带电融冰系统研制及工程应用[J]. 高压电器, 2024, 60(3): 214-222, 228.
Zhang Lu, Li Xinmin, Li Wei, et al.Development and project application of live ice-melting system for UHVDC transmission lines[J]. High Voltage Apparatus, 2024, 60(3): 214-222, 228.
[9] Zhang Yuelong, Guo Yong, Lou Wenjuan, et al.Dynamic response of a transmission conductor following delayed ice shedding by reduced-scale model test[J]. Cold Regions Science and Technology, 2024, 226: 104288.
[10] Yan Bo, Chen Kequan, Guo Yueming, et al.Numerical simulation study on jump height of iced transmission lines after ice shedding[J]. IEEE Transactions on Power Delivery, 2013, 28(1): 216-225.
[11] Rui Xiaoming, Ji Kunpeng, Li Lin, et al.Dynamic response of overhead transmission lines with eccentric ice deposits following shock loads[J]. IEEE Transac-tions on Power Delivery, 2017, 32(3): 1287-1294.
[12] Wang Jinyu, Yan Zhitao, Zhong Yongli, et al.Study on the maximum ice-shedding height of conductor based on energy method[J]. IEEE Access, 2023, 11: 121043-121051.
[13] Lou Wenjuan, Zhang Yuelong, Xu Haiwei, et al.Jump height of an iced transmission conductor considering joint action of ice-shedding and wind[J]. Cold Regions Science and Technology, 2022, 199: 103576.
[14] 黄增浩. 基于双目立体视觉技术的导线脱冰跳跃轨迹监测研究[D]. 北京: 华北电力大学, 2016.
Huang Zenghao.Research on measurement of conductor jump track to ice-shedding based on binocular stereo vision technology[D]. Beijing: North China Electric Power University, 2016.
[15] 冯展浩. 输电线路脱冰跳跃动态特性与光纤光栅监测技术研究[D]. 广州: 华南理工大学, 2020.
Feng Zhanhao.Research on dynamic characteristics of transmission line after ice-shedding and FBG detection technology[D]. Guangzhou: South China University of Technology, 2020.
[16] 黄新波, 赵隆, 周柯宏, 等. 采用惯性传感器的输电导线舞动监测系统[J]. 高电压技术, 2014, 40(5): 1312-1319.
Huang Xinbo, Zhao Long, Zhou Kehong, et al.Conductor galloping monitoring system based on inertial sensor for transmission lines[J]. High Voltage Engineering, 2014, 40(5): 1312-1319.
[17] Yang Lin, Chen Yifei, Mei Lulu, et al.Prediction method for response characteristics parameters of isolated-span overhead lines after ice-shedding based on finite element simulation and machine learning[J]. Electric Power Systems Research, 2024, 229: 110141.
[18] 许俊, 郭耀杰, 曹珂, 等. 考虑多档导线及绝缘子串影响的覆冰及脱冰输电导线找形分析[J]. 电工技术学报, 2015, 30(13): 87-91.
Xu Jun, Guo Yaojie, Cao Ke, et al.Research on form-finding of icing and ice-shedding transmission line considering the influence of multi-span and insulator string[J]. Transactions of China Electrotechnical Society, 2015, 30(13): 87-91.
[19] Chen Qinghao, Liu Tianyu, Wang Zhangqi, et al.Research on digital twin dynamic modeling method for transmission line deicing system[J]. Energies, 2024, 17(6): 1424.
[20] 刘云鹏, 李欢, 田源, 等. 基于分布式光纤传感的绕组变形程度检测[J]. 电工技术学报, 2021, 36(7): 1347-1355.
Liu Yunpeng, Li Huan, Tian Yuan, et al.Winding deformation detection based on distributed optical fiber sensing[J]. Transactions of China Electrotech-nical Society, 2021, 36(7): 1347-1355.
[21] 范晓舟, 袁洁平, 薛峰, 等. 基于简支绕组横梁算法的变压器绕组形变矢量化监测模型[J]. 电工技术学报, 2025, 40(5): 1639-1651.
Fan Xiaozhou, Yuan Jieping, Xue Feng, et al.Vectorization monitoring model of transformer winding deformation based on simply supported winding beam algorithm[J]. Transactions of China Electrotechnical Society, 2025, 40(5): 1639-1651.
[22] 李成宾, 杨志, 黄春林. 光纤布里渊传感在输电线路覆冰监测中的应用[J]. 电力系统通信, 2009, 30(6): 37-41.
Li Chengbin, Yang Zhi, Huang Chunlin.Application of optical fiber Brillouin sensor for power transmission lines icing monitoring[J]. Telecommunications for Electric Power System, 2009, 30(6): 37-41.
[23] Ding Zhewen, Zhang Xuping, Zou Ningmu, et al.Phi-OTDR based on-line monitoring of overhead power transmission line[J]. Journal of Lightwave Technology, 2021, 39(15): 5163-5169.
[24] 杨芳, 唐小亮, 尹文阔, 等. 基于多参量分布式光纤传感的架空输电线路风振监测分析[J]. 电力系统保护与控制, 2022, 50(11): 169-177.
Yang Fang, Tang Xiaoliang, Yin Wenkuo, et al.Analysis of transmission line wind vibration monitoring based on a multi parameter distributed optical fiber sensor[J]. Power System Protection and Control, 2022, 50(11): 169-177.
[25] 陈原, 范硕超, 王馨, 等. 基于新型地线结构和运行方式的输电线路冰害防治技术[J]. 高电压技术, 2024, 50(11): 4933-4941.
Chen Yuan, Fan Shuochao, Wang Xin, et al.Anti-icing technology for transmission lines based on new ground wire structures and operation modes[J]. High Voltage Engineering, 2024, 50(11): 4933-4941.
[26] Gao Shuguo, Liu Yunpeng, Li Huan, et al.Transformer winding deformation detection based on BOTDR and ROTDR[J]. Sensors, 2020, 20(7): 2062.
[27] Zhang Xuping, Ding Zhewen, Hong Rui, et al.Phase sensitive optical time-domain reflective distributed optical fiber sensing technology[J]. Acta Optica Sinica, 2021, 41(1): 0106004.
[28] 谢东升, 孙滔, 史卓鹏, 等. 输电线路拉链式脱冰振动特性试验研究[J]. 兵器装备工程学报, 2021, 42(7): 134-141.
Xie Dongsheng, Sun Tao, Shi Zhuopeng, et al.Experimental study on vibration characteristic of transmission lines under unzipping ice shedding[J]. Journal of Ordnance Equipment Engineering, 2021, 42(7): 134-141.
[29] 桂婕, 沙洲, 封皓, 等. 光缆结构对相位敏感光时域反射仪传感性能的影响[J/OL]. 光通信技术, 2025: 1-14[2025-03-27]. https://kns.cnki.net/KCMS/detail/detail.aspx?filename=GTXS20250326003&dbname=CJFD&dbcode=CJFQ.
Gui Jie, Sha Zhou, Feng Hao, et al. Effect of optical cable structure on sensing performance of phase-sensitive optical time domain reflectometer[J/OL]. Optical Communication Technology, 2025: 1-14 [2025- 03-27].https://kns.cnki.net/KCMS/detail/detail.aspx?filename=GTXS20250326003&dbname=CJFD&dbcode=CJFQ.