• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus 收录
  • 全国中文核心期刊
  • 中国科技论文统计源期刊
  • 中国科学引文数据库来源期刊

架空线路耐张线夹三维温度场仿真分析及验证

董选昌 曲烽瑞 李艳飞 王亦清

董选昌, 曲烽瑞, 李艳飞, 王亦清. 架空线路耐张线夹三维温度场仿真分析及验证[J]. 西南交通大学学报, 2019, 54(5): 997-1004. doi: 10.3969/j.issn.0258-2724.20180610
引用本文: 董选昌, 曲烽瑞, 李艳飞, 王亦清. 架空线路耐张线夹三维温度场仿真分析及验证[J]. 西南交通大学学报, 2019, 54(5): 997-1004. doi: 10.3969/j.issn.0258-2724.20180610
DONG Xuanchang, QU Fengrui, LI Yanfei, WANG Yiqing. Simulation Analysis and Verification on Three-Dimensional Temperature Field of Strain Clamps for Overhead Lines[J]. Journal of Southwest Jiaotong University, 2019, 54(5): 997-1004. doi: 10.3969/j.issn.0258-2724.20180610
Citation: DONG Xuanchang, QU Fengrui, LI Yanfei, WANG Yiqing. Simulation Analysis and Verification on Three-Dimensional Temperature Field of Strain Clamps for Overhead Lines[J]. Journal of Southwest Jiaotong University, 2019, 54(5): 997-1004. doi: 10.3969/j.issn.0258-2724.20180610

架空线路耐张线夹三维温度场仿真分析及验证

doi: 10.3969/j.issn.0258-2724.20180610
详细信息
    作者简介:

    董选昌(1971—),男,高级工程师,研究方向为输电线路运行管理, E-mail:dongxcdx@163.com

  • 中图分类号: TM244.1

Simulation Analysis and Verification on Three-Dimensional Temperature Field of Strain Clamps for Overhead Lines

  • 摘要: 为研究不同条件下架空线路耐张线夹温度分布情况,构建了基于耐张线夹简化结构的有限元模型,并在600 A工频交流电流和不同接触电阻比的条件下,进行了耐张线夹电磁-热耦合有限元仿真,最终得到耐张线夹的三维温度场分布. 仿真结果显示:在正常情况下,耐张线夹引流板处的温度最低;在线夹不同部位接触电阻增大的情况下,引流板处接触电阻的增大对线夹整体温度升高的影响最大,而线夹本体压接处接触电阻的增大对线夹温升影响最小,同时线夹温度升高也会制约架空线路导线载流量. 最后通过线夹电阻测量试验和温升试验验证仿真的准确性,误差约为2.3%.

     

  • 图 1  NY300/40型线夹简化模型结构

    Figure 1.  Simplified model structure for the NY300/40 strain clamp

    图 2  电磁-热耦合模型求解迭代流程

    Figure 2.  Iteration process for electromagnetic-thermal coupling model

    图 3  所有接触面积比为1 000时温度分布

    Figure 3.  Temperature distribution with the contact area ratio of 1 000

    图 4  线夹本体压接处接触面积比为100 000时温度分布

    Figure 4.  Temperature distribution when the contact area ratio of crimp connection at the clamp body is 100 000

    图 5  引流板接触面积比为100 000时温度分布

    Figure 5.  Temperature distribution when the contact area ratio of the conductive plate is 100 000

    图 6  引流板压接处接触面积比为100 000时温度分布

    Figure 6.  Temperature distribution when the contact area ratio of crimp connection at the conductive plate is 100 000

    图 7  耐张线夹温升实验装置

    Figure 7.  Setup for the temperature rise test of strain clamp

    图 8  测温点布置

    Figure 8.  Layout of temperature measurement points

    图 9  引流板接触面积比为5 000,压接部位接触面积比为1 000时的温度分布

    Figure 9.  Temperature distribution when the contact area ratio of the conductive plate is 5 000 and the contact area ratio of crimp connection is 1 000

    表  1  不同部位接触情况恶化下耐张线夹的最高温度

    Table  1.   Highest temperature of strain clamp underdifferent contact resistances for different parts

    接触
    面积比
    引流板
    压接处
    线夹本体
    压接处
    引流板
    接触面
    所有
    接触面
    10 000 74.07 74.07 74.07 74.07
    20 000 82.02 75.11 94.52 98.27
    40 000 94.53 81.03 130.96 138.84
    100 000 128.35 97.21 218.88 239.91
    下载: 导出CSV

    表  2  实验测量电阻与仿真设置电阻对比

    Table  2.   Comparison of experimental resistance andsimulation resistance

    项目螺栓力矩
    (N•m)
    接触面
    积比
    总电阻/
    μΩ
    引流板
    电阻/μΩ
    实验 20 68.9 36.1
    仿真 5 000 66.4 35.5
    误差/% 3.7 1.6
    实验 40 61.7 28.9
    仿真 4 200 60.1 29.3
    误差/% 2.6 1.5
    实验 60 58.3 25.5
    仿真 3 000 56.0 25.2
    误差/% 4.0 1.2
    下载: 导出CSV

    表  3  仿真结果与试验各点温度对比

    Table  3.   Comparison between simulation results and experimental temperatures

    力矩结果测温点测温点测温点测温点
    20试验64.371.370.569.4
    仿真65.168.969.870.7
    误差/%1.23.41.01.9
    40试验/%65.166.666.366.9
    仿真63.966.265.268.2
    误差/%1.90.61.71.9
    60试验64.563.561.364.4
    仿真62.462.962.867.2
    误差/%3.30.92.44.3
    下载: 导出CSV
  • 王中. 耐张管内钢芯铝绞线断线原因分析[J]. 电力建设,2005,26(4): 35-38. doi: 10.3969/j.issn.1000-7229.2005.04.012

    WANG Zhong. Analysis on breakage causes of steel-cored aluminum strands in strained tube[J]. Electric Power Construction, 2005, 26(4): 35-38. doi: 10.3969/j.issn.1000-7229.2005.04.012
    杜毅,敬兴东,包健康,等. 500 kV输电线路引流板过热研究[J]. 四川电力技术,2015,38(1): 19-21. doi: 10.3969/j.issn.1003-6954.2015.01.005

    DU Yi, JING Xingdong, BAO Jiankang, et al. Study on overheat of 500 kV transmission line conductive plate[J]. Sichuan Electric Power Technology, 2015, 38(1): 19-21. doi: 10.3969/j.issn.1003-6954.2015.01.005
    国家经济贸易委员会. 架空送电线路运行规程: DL/T 741—2001[S]. 北京: 中国电力出版社, 2005
    郭晓飞,李拥春,赵元林. 耐张引流发热的分析与处理[J]. 电气技术,2010(8): 136-139. doi: 10.3969/j.issn.1673-3800.2010.08.036

    GUO Xiaofei, LI Yongchun, ZHAO Yuanlin. The analysis and process about high temperature of elementary streams[J]. Electrical Technology, 2010(8): 136-139. doi: 10.3969/j.issn.1673-3800.2010.08.036
    刘毅刚,刘刚,王振华,等. 电缆中间接头连接管压接电阻实验及分析[J]. 广东电力,2016,29(5): 108-112. doi: 10.3969/j.issn.1007-290X.2016.05.020

    LIU Yigang, LIU Gang, Wang Zhenhua, et al. Experimental analysis on crimping resistance of connecting pipe of cable intermediate joint[J]. Guangdong Electric Power, 2016, 29(5): 108-112. doi: 10.3969/j.issn.1007-290X.2016.05.020
    崔明,贾晨,王朔,等. 导线与线夹接触不良发热的热像特征[J]. 吉林电力,2013,41(6): 36-38.

    CUI Ming, JIA Chen, WANG Shuo, et al. Thermal image characteristic based on poor contact between conductor and clap[J]. Jilin Electric Power, 2013, 41(6): 36-38.
    WANG Pengyu, LIU Gang, MA Hui, Liu, et al. Investigation of the ampacity of a prefabricated straight-through joint of high voltage cable[J]. Energies, 2017, 10: 2050-2058. doi: 10.3390/en10122050
    LIU Gang, GUO Deming, WANG Pengyu, et al. Calculation of equivalent resistance for ground wires twined with armor rods in contact terminals[J]. Energies, 2018, 11(4): 737-741. doi: 10.3390/en11040737
    曾 嵘,周佩朋,王 森,等. 接地系统中接触电阻的仿真模型及其影响因素分析[J]. 高电压技术,2010,36(10): 2393-2397.

    ZENG Rong, ZHOU Peipeng, WANG Sen, et al. Modeling of contact resistance in ground system and analysis on its influencing factors[J]. High Voltage Engineering, 2010, 36(10): 2393-2397.
    DHOTRE M T, KORBEL J, YE X, et al. CFD simulation of temperature rise in high-voltage circuit breakers[J]. IEEE Trans. Power Deliv, 2017, 32: 2530-2536.
    蔡向晖. 500 kV紧凑型线路耐张线夹断裂事故分析[J]. 华北电力技术,2003(3): 36-38. doi: 10.3969/j.issn.1003-9171.2003.03.012

    CAI Xianghui. Analysis on 500 kV compact transmissionLine strain clamps fracturing accident[J]. North China Electric Power, 2003(3): 36-38. doi: 10.3969/j.issn.1003-9171.2003.03.012
    程礼椿. 电接触理论及应用[M]. 北京: 机械工业出版社, 1988: 10-48.
    HOLM R. Electric contacts: theory and application[M]. 4th ed. [S.l.]: Springer, 1979: 5-35.
    冯慈璋, 马西奎. 工程电磁场导论[M]. 北京: 高等教育出版社, 2010: 183-186.
    孙国霞,关向雨,金向朝,等. 基于多场耦合计算的气体绝缘开关设备母线接头过热性能分析[J]. 高电压技术,2014,40(11): 3445-3451.

    SUN Guoxia, GUAN Xiangyu, JIN Xiangchao, et al. Temperature rise calculation and overheating fault analysis of gas insulated switchgear bus connector based on coupled field theory[J]. High Voltage Engineering, 2014, 40(11): 3445-3451.
    马冰然. 电磁场与电磁波[M]. 广州: 华南理工大学出版社, 2007: 148-152.
    冯长根, 王新泉, 吴超, 等. 传热学[M]. 北京: 机械工业出版社, 2009: 13-21.
    林建忠. 流体力学[M]. 北京: 清华大学出版社, 2005: 210-214.
    孙纪宁. ANSYS CFX对流传热数值模拟基础应用教程[M]. 北京: 国防工业出版社, 2010: 365-377.
    李雪. 耐热导线耐张线夹发热问题解决方案研究[D]. 北京: 华北电力大学, 2010
    毛先胤,盛戈皞,刘亚东,等. 架空输电线路暂态载流能力的计算和评估[J]. 高压电器,2011,47(1): 70-74.

    MAO Xianyin, SHENG Gehao, LIU Yadong, et al. Calculation and evaluation of overhead transmission line transient ampacity[J]. High Voltage Apparatus, 2011, 47(1): 70-74.
  • 加载中
图(9) / 表(3)
计量
  • 文章访问数:  450
  • HTML全文浏览量:  253
  • PDF下载量:  14
  • 被引次数: 0
出版历程
  • 收稿日期:  2018-07-19
  • 修回日期:  2018-09-30
  • 网络出版日期:  2018-10-31
  • 刊出日期:  2019-10-01

目录

    /

    返回文章
    返回