雷电电磁脉冲场对双绞线网络的耦合规律
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摘要
为研究双绞线网络在雷电电磁脉冲场辐照下终端负载的感应电压,对树形双绞线网络进行辐照耦合试验。通过改变雷电电磁脉冲场波形、组成线缆网络的线缆夹角、线缆网络终端负载等条件,获得终端负载上的感应电压并分析响应规律。结果表明:雷电电磁脉冲场波形上升沿越快,双绞线网络终端负载的感应电压越大,而场波形的脉宽对终端负载感应电压基本无影响;线缆网络受测端负载感应电压随着线缆间夹角的增大而线性变小,但并不改变响应波形;线缆网络受测端负载感应电压随着受测端负载阻值的增加首先呈现线性增大的趋势,而后趋于平稳。
In order to study the voltage of the terminal load for twisted pair network coupled with lightning electromagnetic pulse field, the tree-twisted pair network was irradiated. The voltage of terminal load and response law were accessed by changing waveforms of lightning electromagnetic pulse field, and the angles between twisted pair which formed network and terminal loads. It is found that the faster the rising part of lightning electromagnetic field waveforms is, the greater the induced voltage of the terminal load will be, and the pulse width has little effect on induced voltage. The induced voltage of the terminal load linearly decreases as the angles between twisted pair increase, but it does not change the waveforms of induced voltage. The induced voltage of the terminal load linearly increases firstly and then levels off with the increase of tested resistance.
In order to study the voltage of the terminal load for twisted pair network coupled with lightning electromagnetic pulse field, the tree-twisted pair network was irradiated. The voltage of terminal load and response law were accessed by changing waveforms of lightning electromagnetic pulse field, and the angles between twisted pair which formed network and terminal loads. It is found that the faster the rising part of lightning electromagnetic field waveforms is, the greater the induced voltage of the terminal load will be, and the pulse width has little effect on induced voltage. The induced voltage of the terminal load linearly decreases as the angles between twisted pair increase, but it does not change the waveforms of induced voltage. The induced voltage of the terminal load linearly increases firstly and then levels off with the increase of tested resistance.
引文
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[14]黄宇皓,易学勤,刘其凤,等.双绞线在EMP下的终端响应分析[J].装备环境工程,2011,8(6):91-95.HUANG Yuhao,YI Xueqin,LIU Qifeng,et al.Terminal response analysis of twisted pair under EMP[J].Equipment Environmental Engineering,2011,8(6):91-95.
[15]Yang B,Zhou B H,Chen B,et al.Numerical study of lightning-induced currents on buried cables and shield wire protection method[J].IEEE Transactions on Electromagnetic Compatibility,2012,54(2):323-331.
[2]孙丹峰,季幼章.雷电的危害及实例分析[J].电源世界,2016(1):52-57.SUN Danfeng,JI Youzhang.The harm and the example analysis of lightning[J].The World of Power Supply,2016(1):52-57.
[3]刘尚合,刘卫东.电磁兼容与电磁防护相关研究进展[J].高电压技术,2014,40(6):1605-1613.LIU Shanghe,LIU Weidong.Progress of relevant research on electromagnetic compatibility and electromagnetic protection[J].High Voltage Engineering,2014,40(6):1605-1613.
[4]司马文霞,杨庆,李永福,等.输电线路雷电绕击评估方法分析及展望[J].高电压技术,2015,41(8):2500-2513.SIMA Wenxia,YANG Qing,LI Yongfu,et al.Analysis and prospect of lightning shielding failure evaluation methods of transmission lines[J].High Voltage Engineering,2015,41(8):2500-2513.
[5]万浩江,魏光辉,陈亚洲.雷电先导放电通道内电场和电荷的分布特征[J].中国船舶研究,2015,10(2):55-64.WAN Haojiang,WEI Guanghui,CHEN Yazhou.Distribution features of the electric field and charge density in the lightning leader channel[J].Chinese Journal of Ship Research,2015,10(2):55-64.
[6]王浩,陈亚洲,万浩江.雷电电磁脉冲场对多芯线的耦合效应研究[J].河北科技大学学报,2015,36(2):163-169.WANG Hao,CHEN Yazhou,WAN Haojiang.Study on coupling effect between lightning electromagnetic field and unshielded multi-core cable[J].Journal of Hebei University of Science and Technology,2015,36(2):163-169.
[7]樊亚东,于建立,詹清华.基于多阶FDTD雷电感应过电压计算新方法[J].电工技术学报,2015,30(12):336-343.FAN Yadong,YU Jianli,ZHAN Qinghua.New method of lightning induced over-voltage based on multiple order FDTD[J].Transactions of China Electrotechnical Society,2015,30(12):336-343.
[8]潘汉波,颜旭,陈绍东.100 m架空网线感应过电压特征分析[J].成都信息工程学院学报,2013,28(2):187-192.PAN Hanbo,YAN Xu,CHEN Shaodong.The characteristic analysis of the coupling induction overvoltage on 100 meters of overhead network cable[J].Journal of Chengdu University of Information,2013,28(2):187-192.
[9]于晖,董万胜,陈绍东,等.埋地电缆雷电感应过电压观测和分析[J].强激光与粒子束,2010,22(10):2373-2377.YU Hui,DONG Wansheng,CHEN Shaodong,et al.Observation and analysis of lightning induced overvoltage on buried cables[J].High Power Laser and Particle Beams,2010,22(10):2373-2377.
[10]邱日强,朱峰,苟江川,等.架空屏蔽电缆–大地耦合的感应电流谐振分析[J].高电压技术,2015,41(4):1243-1248.QIU Riqiang,ZHU Feng,GOU Jiangchuan,et al.Resonance analysis on induced current of coupling between overhead shielded cables and ground[J].High Voltage Engineering,2015,41(4):1243-1248.
[11]王浩,陈亚洲,万浩江.雷电电磁脉冲场对双绞线的耦合研究[J].微波学报,2016,32(1):41-48.WANG Hao,CHEN Yazhou,WAN Haojiang.Study on coupling between lightning electromagnetic field and twisted pair[J].Journal of Microwaves,2016,32(1):41-48.
[12]Mario P,Farhad R,Alberto B,et al.Lightning electromagnetic field coupling to overhead lines:theory,numerical simulations,and experimental validation[J].IEEE Transactions on Electromagnetic Compatibility,2009,51(3):532-547.
[13]潘晓东,魏光辉,任新智.有界波模拟器内部电场分布仿真研究[J].测试技术学报,2007,21(5):410-413.PAN Xiaodong,WEI Guanghui,REN Xinzhi.Simulation research on electric field distribution in bounded-wave simulator[J].Journal of Test and Measurement Technology,2007,21(5):410-413.
[14]黄宇皓,易学勤,刘其凤,等.双绞线在EMP下的终端响应分析[J].装备环境工程,2011,8(6):91-95.HUANG Yuhao,YI Xueqin,LIU Qifeng,et al.Terminal response analysis of twisted pair under EMP[J].Equipment Environmental Engineering,2011,8(6):91-95.
[15]Yang B,Zhou B H,Chen B,et al.Numerical study of lightning-induced currents on buried cables and shield wire protection method[J].IEEE Transactions on Electromagnetic Compatibility,2012,54(2):323-331.