三电极气体火花开关导通电流及其电磁辐射特性

邱永峰; 卞立安; 刘柱; 肖培; 蒋建辉; 李高升; 杨建华; 刘金亮

doi:10.11884/HPLPB202032.190326

三电极气体火花开关导通电流及其电磁辐射特性

doi: 10.11884/HPLPB202032.190326

1.
湖南大学电气与信息工程学院，长沙 410082
2.
国防科技大学前沿交叉学科学院，长沙 410073

基金项目: 电子测试技术重点实验室开放基金项目（6142001180205）；广西精密导航技术与应用重点实验室开放基金项目（DH201811）

详细信息

作者简介:
邱永峰（1985—），男，博士后，主要从事脉冲功率技术、强电磁脉冲测量、天线新技术等方面的研究；qiu19851219@126.com

中图分类号: TP2
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出版历程
- 收稿日期: 2019-09-01
- 修回日期: 2019-10-29
- 刊出日期: 2019-12-26

Current and electromagnetic radiation characteristics of three-electrode gas spark switch

1.
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
2.
College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

摘要

摘要: 针对三电极气体火花开关工作时产生的强电磁辐射，首先对开关的导通电流及其电磁辐射进行了理论分析，利用CST电磁仿真软件对气体火花开关开展了静电场仿真研究，分析了开关短程导通时的击穿场强；其次对三电极气体火花开关的导通电流和远场辐射场强进行了实验测量，对实验结果进行分析和总结；最后采用电磁屏蔽方法对开关的强电磁辐射进行了有效抑制。研究结果可以为有关脉冲功率装置的电磁辐射及防护提供参考和借鉴。
- 气体火花开关 /
- 电磁辐射 /
- 脉冲电流 /
- 频谱
Abstract: Strong electromagnetic radiation is produced when the three-electrode gas spark switch works. In this paper, firstly, theoretical analysis of the on-current and electromagnetic radiation of the switch is carried out, then the switch is simulated by CST software and the breakdown field strength of which is calculated. Secondly, the on-current and far-field radiation field strength of the three-electrode gas spark switch are measured experimentally, and the results are summarized and analyzed. Finally, the strong electromagnetic radiation of the switch is suppressed with electromagnetic shielding method effectively. The research results can provide reference for electromagnetic radiation and protection of pulse power devices.
- gas spark switch /
- electromagnetic radiation /
- pulse current /
- frequency spectrum

HTML全文

图 1 CST静电场仿真

Figure 1. Electrostatic field simulation with CST

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图 2 气体火花开关电流波形

Figure 2. Current waveform of gas spark switch

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图 3 实验测量布局图

Figure 3. Experimental setup in measurement

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图 4 气体火花开关电磁辐射信号

Figure 4. Electromagnetic radiation signal of gas spark switch

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图 5 金属屏蔽系统

Figure 5. Metal shielding system

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