基于微波透射法的复合绝缘子硅橡胶老化状态检测方法

doi:10.19595/j.cnki.1000-6753.tces.L10017

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1260 KB)
输出: BibTeX | EndNote (RIS)

摘要

该文提出了基于微波透射法的复合绝缘子硅橡胶老化检测数值模拟方法,开展了硅橡胶材料微波检测试验,验证了数值模拟方法的有效性;根据老化规律定义了硅橡胶不同老化状态,通过矩形波导固定扫频检测,分析了透射系数S₂₁幅值的变化规律,确定了最佳检测参数;采用波导移动扫描方法,研究了微波对硅橡胶局部老化程度和位置的检测效果;通过实际10 kV复合绝缘子局部老化微波无损检测,进一步验证了该方法的有效性。研究结果表明：硅橡胶不同老化状态下,S₂₁幅值有明显差异;当提离距离为6 mm、检测频率为4.17 GHz时,通过ΔS₂₁幅值大小及幅值变化区域可有效识别硅橡胶的老化程度和位置。研究对于复合绝缘子老化状态的无损检测具有重要意义。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	黎鹏
	黎子晋
	王申华
	吴田
	普子恒

关键词 ：复合绝缘子, 硅橡胶, 微波透射法, 老化检测, 散射参量

Abstract：

Composite insulator has been widely used in power systems due to the advantages of strong anti-pollution flashover capability, good insulation performance and high mechanical strength. However, in long-term operation of composite insulator, under the influence of electro-thermal aging and complex external environment, the silicone rubber sheds of composite insulator will be aged, resulting in a decline in insulation performance, which will increase the risk of transmission line flashover trip. Hence, it is necessary to propose a method that can effectively detect the aging state of composite insulator.
Firstly, the aging detection principle of composite insulator silicone rubber shed based on microwave transmission method was described in detail, and the numerical simulation method for aging detection of silicone rubber based on microwave transmission method was proposed. Then the microwave detection test of silicone rubber material was carried out, and the effectiveness of numerical simulation method was verified by comparison of simulation and experimental results. Secondly, the numerical simulation analysis of microwave detection for silicone rubber models under different aging conditions was carried out. According to the aging law of composite insulator, the parameters of silicone rubber models with different aging states were defined. For the whole aging silicone rubber model, the fixed position scanning frequency detection by rectangular waveguide was conducted, and the variation of S₂₁ (transmission coefficient) and ΔS₂₁amplitude under different aging degrees of silicone rubber was analyzed. The influence of lift-off distance and microwave operating frequency was studied, and the best fixed frequency detection parameters were determined. Thirdly, considering the actual insulator silicone rubber sheds have local aging condition, the local aging model of silicone rubber was built, and the detection effects of microwave on the local aging degree and position of silicone rubber model were studied by moving scanning method of waveguide. Finally, by establishing an actual 10 kV composite insulator simulation model, the local aging state was detected by the microwave transmission method, and the effectiveness of the method is further verified. At the same time, the mean values of electric field intensity and magnetic field intensity in the shed under different aging degrees were calculated, and the aging state detection mechanism of composite insulators based on microwave transmission method was obtained.
Through the above research and analysis, the results show that, when the aging degree of silicone rubber is different, the amplitude of S₂₁ has obvious differences. When the lift-off distance is 6 mm and the microwave frequency is 4.17 GHz, the detection effect is better. With the deepening of the aging degree, the amplitude of S₂₁ decreases and the amplitude of ΔS₂₁ increases gradually. The aging degree and aging location of silicone rubber can be effectively identified by moving scanning detection of rectangular waveguide. For the actual 10 kV composite insulator, the local aging state can also be detected. When the insulator is aging, due to the increase of the relative dielectric constant and dielectric loss factor, the values of electric field and magnetic field intensity in the aging region decrease under the microwave action, thus leading to the change of microwave transmission parameters. Hence, the aging state of composite insulators can be detected by analyzing the change of microwave transmission parameters.

Key words： Composite insulator silicone rubber microwave transmission method aging detection scattering parameters

收稿日期: 2023-01-13

PACS:

TM931

基金资助:

国家自然科学基金项目资助（51807110）

通讯作者: 普子恒男,1987年生,博士,副教授,研究方向为超特高压输电技术、高压电器设备绝缘试验技术。E-mail：pzhdq@ctgu.edu.cn

作者简介: 黎鹏男,1989年生,博士,副教授,研究方向为电力设备智能运维、电工装备多物理场分析。E-mail：lipeng_ctgu@163.com

引用本文:

黎鹏, 黎子晋, 王申华, 吴田, 普子恒. 基于微波透射法的复合绝缘子硅橡胶老化状态检测方法[J]. 电工技术学报, 0, (): 143-143. Li Peng, Li Zijin, Wang Shenhua, Wu Tian, Pu Ziheng. Aging State Detection Method of Composite Insulator Silicone Rubber Based on Microwave Transmission Method. Transactions of China Electrotechnical Society, 0, (): 143-143.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.L10017 https://dgjsxb.ces-transaction.com/CN/Y0/V/I/143

[1] 张志劲, 梁田, 向缨竹, 等. 去粉化对硅橡胶复合绝缘子性能的影响[J]. 电工技术学报, 2022, 37(8): 2126-2135.
Zhang Zhijin, Liang Tian, Xiang Yingzhu, et al.Effect of de-powdering on the performance of silicone rubber composite insulator[J]. Transactions of China Electrotechnical Society, 2022, 37(8): 2126-2135.
[2] 刘士利, 李卫东, 李振新, 等. 水带对憎水性表面交流闪络特性与电场分布的影响[J]. 电工技术学报, 2022, 37(21): 5570-5577.
Liu Shili, Li Weidong, Li Zhenxin, et al.Influence of water band on AC flashover characteristics and electric field distribution of hydrophobic surface[J]. Transactions of China Electrotechnical Society, 2022, 37(21): 5570-5577.
[3] 徐建军, 黄立达, 闫丽梅, 等. 基于层次多任务深度学习的绝缘子自爆缺陷检测[J]. 电工技术学报, 2021, 36(7): 1407-1415.
Xu Jianjun, Huang Lida, Yan Limei, et al.Insulator self-explosion defect detection based on hierarchical multi-task deep learning[J]. Transactions of China Electrotechnical Society, 2021, 36(7): 1407-1415.
[4] 张志劲, 张翼, 蒋兴良, 等. 自然环境不同年限复合绝缘子硅橡胶材料老化特性表征方法研究[J]. 电工技术学报, 2020, 35(6): 1368-1376.
Zhang Zhijin, Zhang Yi, Jiang Xingliang, et al.Study on aging characterization methods of composite insulators aging in natural environment for different years[J]. Transactions of China Electrotechnical Society, 2020, 35(6): 1368-1376.
[5] 梁曦东, 高岩峰, 王家福, 等. 中国硅橡胶复合绝缘子快速发展历程[J]. 高电压技术, 2016, 42(9): 2888-2896.
Liang Xidong, Gao Yanfeng, Wang Jiafu, et al.Rapid development of silicone rubber composite insulator in China[J]. High Voltage Engineering, 2016, 42(9): 2888-2896.
[6] 黄成才, 李永刚, 汪佛池, 等. 基于电导电流测试的硅橡胶复合绝缘子伞群材料老化特性分析[J]. 电工技术学报, 2016, 31(2): 252-259.
Huang Chengcai, Li Yonggang, Wang Fochi, et al.Study on aging characteristics of silicone rubber sheds of composite insulators based on conduction current test[J]. Transactions of China Electrotechnical Society, 2016, 31(2): 252-259.
[7] 侯慧, 于士文, 李显强, 等. 基于随机风场概率加权的台风灾害下输电线路损毁预警[J]. 电力系统自动化, 2021, 45(7): 140-147.
Hou Hui, Yu Shiwen, Li Xianqiang, et al.Early warning for transmission line damage under typhoon disaster based on random wind field probability weighting[J]. Automation of Electric Power Systems, 2021, 45(7): 140-147.
[8] 王建, 吴昊, 张博, 等. 不平衡样本下基于迁移学习-AlexNet的输电线路故障辨识方法[J]. 电力系统自动化, 2022, 46(22): 182-191.
Wang Jian, Wu Hao, Zhang Bo, et al.Fault identification method for transmission line based on transfer learning-AlexNet with imbalanced samples[J]. Automation of Electric Power Systems, 2022, 46(22): 182-191.
[9] de Oliveira S M, de Tourreil C H. Aging of distribution composite insulators under environmental and electrical stresses[J]. IEEE Transactions on Power Delivery, 1990, 5(2): 1074-1077.
[10] Venkatesulu B, Thomas M J.Long-term accelerated weathering of outdoor silicone rubber insulators[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2011, 18(2): 418-424.
[11] 张福增, 赵锋, 杨皓麟, 等. 高海拔地区直流输电线路外绝缘特性研究[J]. 高电压技术, 2008, 34(10): 2113-2117.
Zhang Fuzeng, Zhao Feng, Yang Haolin, et al.External insulation characteristics of ultra high voltage transmission line in high altitude area[J]. High Voltage Engineering, 2008, 34(10): 2113-2117.
[12] Song Wei, Shen Wenwei, Zhang Guanjun, et al.Aging characterization of high temperature vulcanized silicone rubber housing material used for outdoor insulation[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2015, 22(2): 961-969.
[13] 曾磊磊. 复合绝缘子异常发热及湿热老化特性研究[D]. 广州: 华南理工大学, 2019.
[14] 曾磊磊, 张宇, 童超, 等. 复合绝缘子HTV硅橡胶伞套的湿热老化特性研究[J]. 电瓷避雷器, 2020(1): 214-221.
Zeng Leilei, Zhang Yu, Tong Chao, et al.Study on hygrothermal aging characteristics of HTV silicone rubber sheds of composite insulators[J]. Insulators and Surge Arresters, 2020(1): 214-221.
[15] 彭向阳, 李子健, 黄振, 等. 基于TG-DSC法的复合绝缘子硅橡胶主组分含量研究[J]. 南方电网技术, 2017, 11(1): 36-44.
Peng Xiangyang, Li Zijian, Huang Zhen, et al.TG-DSC coupling techniques based investigation on main component content of silicone rubber composite insulators[J]. Southern Power System Technology, 2017, 11(1): 36-44.
[16] 张辉, 屠幼萍, 佟宇梁, 等. 基于TSC测试的硅橡胶复合绝缘子伞裙材料老化特性研究[J]. 中国电机工程学报, 2012, 32(19): 169-174, 201.
Zhang Hui, Tu Youping, Tong Yuliang, et al.Study on aging characteristics of silicone rubber sheds of composite insulators based on TSC test[J]. Proceedings of the CSEE, 2012, 32(19): 169-174, 201.
[17] 徐征, 郭盼, 何晓龙, 等. 基于核磁共振原理的复合绝缘子老化问题研究[J]. 高压电器, 2012, 48(3): 21-25.
Xu Zheng, Guo Pan, He Xiaolong, et al.Aging detection of composite insulator with nuclear magnetic resonance theory[J]. High Voltage Apparatus, 2012, 48(3): 21-25.
[18] 李进, 赵仁勇, 杜伯学, 等. 电工环氧绝缘件缺陷无损检测方法研究进展[J]. 电工技术学报, 2021, 36(21): 4598-4607.
Li Jin, Zhao Renyong, Du Boxue, et al.Research progress of nondestructive detection methods for defects of electrical epoxy insulators[J]. Transactions of China Electrotechnical Society, 2021, 36(21): 4598-4607.
[19] 梅红伟, 陈洁, 高嵩, 等. 全尺寸复合绝缘子内部缺陷微波无损检测研究[J]. 高压电器, 2020, 56(3): 87-93.
Mei Hongwei, Chen Jie, Gao Song, et al.Research on microwave-based non-destructive testing for internal defect detection of fullsize composite insulator[J]. High Voltage Apparatus, 2020, 56(3): 87-93.
[20] 何存富, 杨玉娥, 吴斌. 反射系数法微波检测热障涂层厚度的实验研究[J]. 仪器仪表学报, 2011, 32(11): 2590-2595.
He Cunfu, Yang Yue, Wu Bin.Experimental study on thickness detection of thermal barrier coatings using microwave[J]. Chinese Journal of Scientific Instrument, 2011, 32(11): 2590-2595.
[21] 杨玉娥, 赵东, 安延涛, 等. 微波检测热障涂层孔隙率的可行性研究[J]. 仪器仪表学报, 2015, 36(6): 1215-1220.
Yang Yue, Zhao Dong, An Yantao, et al.Feasibility study for detecting the porosity of thermal barrier coating using microwave[J]. Chinese Journal of Scientific Instrument, 2015, 36(6): 1215-1220.
[22] 万勋, 刘正庭, 龚政雄, 等. 基于微波透射法的瓷质绝缘子XWP-70劣化检测[J]. 电瓷避雷器, 2020(4): 207-214.
Wan Xun, Liu Zhengting, Gong Zhengxiong, et al.Microwave transmission method for detecting deteriorated ceramic insulators[J]. Insulators and Surge Arresters, 2020(4): 207-214.
[23] 王黎明, 李昂, 成立, 等. 基于微波反射法的复合绝缘子无损检测方法[J]. 高电压技术, 2015, 41(2): 584-591.
Wang Liming, Li Ang, Cheng Li, et al.Microwave-based non-destructive testing method on composite insulators[J]. High Voltage Engineering, 2015, 41(2): 584-591.
[24] 王黎明, 李昂, 成立. 复合绝缘子微波无损检测方法的关键因素研究[J]. 高电压技术, 2017, 43(1): 203-209.
Wang Liming, Li Ang, Cheng Li.Key factors of microwave non-destructive testing on composite insulators[J]. High Voltage Engineering, 2017, 43(1): 203-209.
[25] 刘正庭. 基于微波透射法的绝缘子劣化检测[D]. 长沙: 湖南大学, 2019.
[26] 吕鸿, 马佳炜, 杨贤, 等. 热老化对220 kV硅橡胶电缆接头绝缘材料介电性能的影响[J]. 绝缘材料, 2019, 52(2): 47-51.
Lv Hong, Ma Jiawei, Yang Xian, et al.Influence of thermal ageing on dielectric properties of insulating materials in 220 kV silicone rubber cable joint[J]. Insulating Materials, 2019, 52(2): 47-51.