| 大电流作用下电缆转移阻抗非线性特性研究 |
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| 引用本文： | 石立华, 张刘辉, 张祥, 周颖慧. 大电流作用下电缆转移阻抗非线性特性研究[J]. 电波科学学报, 2014, 29(3): 515-520. doi: 10.13443/j.cjors.2013060903 |
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| 作者姓名： | 石立华 张刘辉 张祥 周颖慧 |
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| 作者单位： | 1.解放军理工大学 电磁环境效应与光电工程国家级重点实验室,江苏 南京 210007;2.中国人民解放军73911部队,江苏 南京 210012 |
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| 基金项目： | 国家自然科学基金(No.51077133) |
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| 摘 要： | 为了研究屏蔽电缆受外界电磁脉冲作用可能产生的非线性效应，提出了屏蔽电缆表面转移阻抗的大电流注入测试方法.建立了大电流注入测试系统，通过注入测试方法获得了不同电流等级下电缆转移阻抗曲线，对比了两类屏蔽多芯电缆的芯线电磁脉冲耦合情况.实验表明：加入一层铁磁性屏蔽层的多芯电缆在注入电流峰值超过2 kA时，芯线耦合电压会呈现非线性效应.并分析了该现象产生的原因.
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| 关 键 词： | 电磁脉冲 屏蔽电缆 非线性效应 转移阻抗 |
| 收稿时间： | 2013-06-09 |
Nonlinear effect of shielded cable transfer impedance by bulk current injection |
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| SHI Lihua, ZHANG Liuhui, ZHANG Xiang, ZHOU Yinghui. Nonlinear effect of shielded cable transfer impedance by bulk current injection[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2014, 29(3): 515-520. doi: 10.13443/j.cjors.2013060903 |
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| Authors: | SHI Lihua ZHANG Liuhui ZHANG Xiang ZHOU Yinghui |
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| Affiliation: | 1.National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering, PLA University of Science and Technology, Nanjing Jiangsu 210007, China;2. Unit 73911 of PLA, Nanjing Jiangsu 210012, China |
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| Abstract: | In order to study the nonlinear effect of shielded cables caused by radiation coupling of electromagnetic pulse (EMP), a measurement method for the surface transfer impedance under bulk current injection is proposed. The measurement system is built, then the transfer impedance is measured by injecting currents of different amplitudes, and the internal wire responses of two kinds of shielded cables are observed. The experiment shows that when the injected peak current value exceeds 2 kA, the coupling voltage nonlinear effect occurs in the multi-conductor cable which contains a ferromagnetic shield layer. The explanation of this phenomenon is also analyzed. |
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| Keywords: | EMP shielded cable nonlinear effect transfer impedance |
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