新型拖拽式导线端线夹设计与仿真

doi:10.3969/j.issn.1000-1565.2025.04.011

摘要/Abstract

摘要： 针对检修架空配电线路时常需操作人员反复登杆高空作业装拆接地线存在的效率较低和高空坠落风险问题,提出并设计了一种人员在地面通过拖拽方式即可完成短路接地线安装和拆卸的新型拖拽式导线端线夹.该线夹通过与跨越接地位置的绝缘绳连接,在绝缘绳的另一端向下拉绳,即可拖拽线夹携带短路接地线上升并顺利卡住接地位置,通过控制绳释放压缩弹簧,使得线夹夹紧接地位置.检修完成需要拆卸该线夹时,只需要在地面拖拽线夹上的另一根绝缘绳即可让线夹脱离接地位置并回收.为了检验新型线夹能够在正常断电和意外突然通电情况下均能安全可靠夹紧接地位置,从线夹的夹紧力、短路电流电动力、电流的热效应3个方面进行仿真研究及实验,结果表明,3方面的参数均在线夹的安全范围内,为设计此类新型线夹和安全使用提供了可靠的理论依据.

关键词: 导线端线夹, 拖拽式, 夹紧力, 电动力, 电流热效应, 仿真

Abstract: With pespect to the low efficiency and risk of high-altitude falling for operators to repeatedly climb poles to install and remove grounding wires for maintenance of overhead distribution lines, a new drag type wire end clamp is proposed and designed. This clamp allows personnel to install and remove grounding wires by dragging them on the ground. The clamp is connected to an insulation rope that spans the grounding position. By pulling the rope downwards at the other end of the insulation rope, the clamp can be dragged to carry the grounding wire up and smoothly clamp the grounding position. By dragging the controlling rope to release the compression spring, the clamp can be tightly connected to the grounding position. When the maintenance is completed and the clamp needs to be removed, simply drag the other insulated rope on the clamp to detach it from the grounding position and retrieve it on the ground. In order to verify that the new type of wire clamp can safely and reliably clamp the grounding position under normal power outage and unexpected sudden power on situations, simulation research and experiments were conducted from three aspects: clamping force of the wire clamp, short-circuit current electrodynamic force,- DOI:10.3969/j.issn.1000-1565.2025.04.011新型拖拽式导线端线夹设计与仿真朱成昊¹,朴天高¹,曹亮¹,户克磊¹,张辰琪¹,李金迪¹,花广如²(1. 国网北京市电力公司大兴供电公司,北京 102600;2. 华北电力大学河北省电力机械装备健康维护与失效预防重点实验室,河北保定 071003)摘要:针对检修架空配电线路时常需操作人员反复登杆高空作业装拆接地线存在的效率较低和高空坠落风险问题,提出并设计了一种人员在地面通过拖拽方式即可完成短路接地线安装和拆卸的新型拖拽式导线端线夹.该线夹通过与跨越接地位置的绝缘绳连接,在绝缘绳的另一端向下拉绳,即可拖拽线夹携带短路接地线上升并顺利卡住接地位置,通过控制绳释放压缩弹簧,使得线夹夹紧接地位置.检修完成需要拆卸该线夹时,只需要在地面拖拽线夹上的另一根绝缘绳即可让线夹脱离接地位置并回收.为了检验新型线夹能够在正常断电和意外突然通电情况下均能安全可靠夹紧接地位置,从线夹的夹紧力、短路电流电动力、电流的热效应3个方面进行仿真研究及实验,结果表明,3方面的参数均在线夹的安全范围内,为设计此类新型线夹和安全使用提供了可靠的理论依据.关键词:导线端线夹;拖拽式;夹紧力;电动力;电流热效应;仿真中图分类号:TH122;TM726 文献标志码:A 文章编号:1000-1565(2025)04-0431-08Design and simulation of a new drag type wire end clampZHU Chenghao¹, PIAO Tiangao¹, CAO Liang¹, HU Kelei¹, ZHANG Chenqi¹, LI Jindi¹, HUA Guangru²(1.Daxing Power Supply Company,State Grid Beijing Electric Power Company, Beijing 102600,China;2. Hebei Key Laboratory of Electric Machinery Health Maintenance and Failure Prevention,North China Electric Power University, Baoding 071003,China)Abstract: With pespect to the low efficiency and risk of high-altitude falling for operators to repeatedly climb poles to install and remove grounding wires for maintenance of overhead distribution lines, a new drag type wire end clamp is proposed and designed. This clamp allows personnel to install and remove grounding wires by dragging them on the ground. The clamp is connected to an insulation rope that spans the grounding position. By pulling the rope downwards at the other end of the insulation rope, the clamp can be dragged to carry the grounding wire up and smoothly clamp the grounding position. By dragging the controlling rope to release the compression spring, the clamp can be tightly connected to the grounding position. When the maintenance is completed and the clamp needs to be removed, simply drag the other insulated rope on the clamp to detach it from the grounding position and retrieve it on the ground. In order to verify that the new type of wire clamp can safely and reliably clamp the grounding position under normal power outage and unexpected sudden power on situations, simulation research and experiments were conducted from three aspects: clamping force of the wire clamp, short-circuit current electrodynamic force,- 收稿日期:2025-03-24;修回日期:2025-04-18 基金项目:国网北京市电力公司科技项目(520212230006) 第一作者:朱成昊(1990—),男,国网北京市电力公司工程师,主要从事电力电子技术研究. E-mail: jerry19901028@126.com 通信作者:花广如(1971—),男,华北电力大学教授,博士,主要从事电力特种机器人研究.E-mail: huagr2007@163.com 第4期朱成昊等:新型拖拽式导线端线夹设计与仿真河北大学学报(自然科学版) 第45卷and current thermal effect. The results showed that all three parameters were within the safe range of the wire clamp, providing a reliable theoretical basis for the design and safe use of such new wire clamps.

Key words: wire end clamp, drag type, clamping force, electrodynamic force, electric current thermal effect, simulation

中图分类号:

TH122
TM726

朱成昊,朴天高,曹亮,户克磊,张辰琪,李金迪,花广如. 新型拖拽式导线端线夹设计与仿真[J]. 河北大学学报(自然科学版), 2025, 45(4): 431-438.

ZHU Chenghao, PIAO Tiangao, CAO Liang, HU Kelei, ZHANG Chenqi, LI Jindi, HUA Guangru. Design and simulation of a new drag type wire end clamp[J]. Journal of Hebei University(Natural Science Edition), 2025, 45(4): 431-438.

参考文献

[1] 王涛,韩璟琳,邵华,等.基于合作博弈的农村微电网群与配电网运行优化方法[J].河北大学学报(自然科学版),2020,40(4):441-448.DOI:10.3969/J.issn.1000-1565.2020.04.016.
[2] 张颖,黄丽华,刘伟娜,等.孤岛运行模式下微电网有功负荷优化分配[J].河北大学学报(自然科学版),2015,35(6):632-638.DOI:10.3969/j.issn.1000-1565.2015.06.013.
[3] 顾艳君.新型超高压短路接地线导线端线夹的设计与分析[D].苏州:苏州大学,2012.
[4] 赵民.架空绝缘配电线路施工安全问题的探讨[J].石油化工安全技术,2005,21(3):31-32.DOI:10.3969/j.issn.1673-8659.2005.03.012.
[5] 顾艳君,钱志良,杨全超,等.一种新型超高压电动短路接地线夹[J].苏州大学学报(工科版),2012,32(2):48-51.DOI:10.3969/j.issn.1673-047X.2012.02.009.
[6] 汪新康,刘炳,蒋森屹,等.一种省力的自锁式通用接地线夹的设计研发[J].广西电力,2022,45(3):86-90.DOI:10.16427/j.cnki.issn1671-8380.2022.03.005.
[7] 黄忠华,陈愿米,刘溪.基于多物理场耦合的高强度线夹可靠性分析[J].电气技术与经济,2024(6):161-164.
[8] 陈家慧,王方强,兰贵天,等.耐张线夹防滑槽漏压的失效分析与机理研究[J].热加工工艺,2022,51(12):146-150.
[9] SUN M C,TANC,ZHANG C Q,etal.Analysis of strain clamp failure on 500 kV transmission line[J]. J Mater Sci Chem Eng,2018,6(4):47-56.DOI:10.4236/msce.2018.64007.
[10] 王元军,刘宝龙,王闯.基于特高压输电线路耐张线夹钢锚凹槽漏压影响分析[J].红水河,2022,41(2):100-105,116.DOI:10.3969/J.issn.1001-408X.2022.02.022.
[11] 周立宪,孙涛,顾建.大截面导线用耐张线夹压接性能评价[J].中国电机工程学报,2020,40(Suppl.1):149-154.DOI:10.13334/j.0258-8013.pcsee.200217.
[12] 颜涛,李学,王云辉,等.架空线路耐张线夹典型故障分析[J].电工技术,2021(1):32-35.DOI:10.19768/j.cnki.dgjs.2021.01.010.
[13] 庞锴,吕中宾,都元祥,等.输电线路耐张线夹压接长度对其抗拉承载力及失效模式的影响分析[J].科学技术与工程, 2020, 20(23): 9384-9392.
[14] 吕东泽,骆文杰,熊杰,等.输电线钢芯铝绞线精密压接成形的有限元分析[J].精密成形工程,2022,14(5):75-82.DOI:10.3969/j.issn.1674-6457.2022.05.012.
[15] 马恒,陈庆吟,谈佳栋,等.输变电架空导线压接断裂有限元分析[J].塑性工程学报,2021,28(10):206-214.DOI:10.3969/j.issn.1007-2012.2021.10.026.
[16] 李昊,边美华,朱登杰,等.压缩型耐张线夹钢锚传力路径失效机理实验及仿真研究[J/OL].南方电网技术,2024:1-8.(2024-07-30).https://kns.cnki.net/kcms/detail/44.1643.TK.20240729.1504.006.html.
[17] 刘鸿祥.基于模型预测控制的无级变速器夹紧力优化策略研究[D].长春工业大学,2020.DOI:10.27805/d.cnki.gccgy.2020.000155.
[18] 赵新宇,贾振宏,张瑞永,等.500 kV气体绝缘输电线路电磁仿真分析[C] //南京:中国电力科学研究院.用电与能效专题讲座暨智能用电及能效管理技术研讨会论文集.2019:7.DOI:10.26914/c.cnkihy.2019.077377.
[19] 廖欣欣,谢靖娴,苏金燕.针对500 kV变电站GIS接地线挂接缺陷的新型接地环设计[J].电气开关,2024,62(06):27-29.
[20] 谭健,蔡冰,刘华臣,等.电阻发热元件温度均匀性仿真研究[J/OL].华东理工大学学报(自然科学版),1-9[2025-01-14].https://doi.org/10.14135/j.cnki.1006-3080.20241204001.
[21] 中国国家标准化管理委员会.规定电气设备部件(特别是接线端子)允许温升的导则:GB/T25840-2010[S].北京:中国标准出版社,2011. (