| 导线贯通金属腔体电磁辐射耦合电流的计算方法 |
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| 引用本文： | 李新峰,魏光辉,潘晓东,汪连栋,申绪涧.导线贯通金属腔体电磁辐射耦合电流的计算方法[J].北京理工大学学报,2016,36(6):625-629,634. |
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| 作者姓名： | 李新峰 魏光辉 潘晓东 汪连栋 申绪涧 |
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| 作者单位： | 军械工程学院静电与电磁防护研究所,河北,石家庄050003;电子信息系统复杂电磁环境效应国家重点实验室,河南,洛阳471000;军械工程学院静电与电磁防护研究所,河北,石家庄050003;电子信息系统复杂电磁环境效应国家重点实验室,河南,洛阳471000 |
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| 基金项目： | 国家部委"九七三"计划项目(613138);国家部委武器预研项目(51333030101) |
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| 摘 要： | 为研究电磁波辐射条件下电力系统中细贯通导线引入的电磁干扰问题,提出了一种利用等效电压元思想求解细导线耦合电流的新方法,推导出金属腔体加载贯通导线时线上电流分布的估算公式,分析了耦合电流分布规律.结果表明,贯通导线对入射电磁波具有频率选择特性,贯通导线的电长度为半波长整数倍时,贯通导线上电流谐振,谐振时线上耦合电流波峰数为n,而后采用信号发生器、电流探头等设备建立了含细贯通导线金属腔体电磁耦合实验平台,通过开展贯通导线连续波电磁辐射效应实验验证了该方法的有效性.
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| 关 键 词： | 细导线 金属腔体 连续波辐射 等效电流元 贯通导线 耦合电流 |
| 收稿时间： | 2014/10/14 0:00:00 |
Calculation Method for Wire Coupling Current Penetrating Metal Enclosure Under Electromagnetic Irradiation |
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| LI Xin-feng,WEI Guang-hui,PAN Xiao-dong,WANG Lian-dong and SHEN Xu-jian.Calculation Method for Wire Coupling Current Penetrating Metal Enclosure Under Electromagnetic Irradiation[J].Journal of Beijing Institute of Technology(Natural Science Edition),2016,36(6):625-629,634. |
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| Authors: | LI Xin-feng WEI Guang-hui PAN Xiao-dong WANG Lian-dong and SHEN Xu-jian |
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| Institution: | Institute of Electrostatic and Electromagnetic Protection, Ordnance Engineering College, Shijiazhuang, Hebei 050003, China;State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics & Information System, Luoyang, He''nan 471000, China,Institute of Electrostatic and Electromagnetic Protection, Ordnance Engineering College, Shijiazhuang, Hebei 050003, China,Institute of Electrostatic and Electromagnetic Protection, Ordnance Engineering College, Shijiazhuang, Hebei 050003, China,State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics & Information System, Luoyang, He''nan 471000, China and State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics & Information System, Luoyang, He''nan 471000, China |
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| Abstract: | In order to study the electromagnetic disturbance brought by penetrative wire in power system under electromagnetic irradiation, a new method to calculate the coupling current of thin wire was derived with the equivalent voltage cell theory, which was improved to estimate the coupling current of thin penetrative wire within metal cavity. The coupling current distribution law was analyzed. The results show that, the penetrative wire response exists frequency selecting characteristic to electromagnetic irradiation, when the test wire electric length equals to semi-integer, the number of wave crest equals to n. Then an experimental plat was set up with a signal generator and current probe to analyze the coupling current for thin penetrative wire within metal cavity. The experimental results show the validity of the new method. |
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| Keywords: | thin wire metal enclosure continuous wave irradiation equivalent current cell penetrative wire coupling current |
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