金属网电磁屏蔽特性的解析研究

doi:10.11930/j.issn.1004-9649.201807077

中国电力 ›› 2019, Vol. 52 ›› Issue (8): 78-84.DOI: 10.11930/j.issn.1004-9649.201807077

金属网电磁屏蔽特性的解析研究

王永红¹, 肖冰¹, 何日², 胡逸帆², 焦重庆², 徐克强³

1. 国网内蒙古东部电力有限公司电力科学研究院, 内蒙古呼和浩特 010020;
2. 华北电力大学新能源电力系统国家重点实验室, 北京 102206;
3. 南京恒经通电子科技有限公司, 江苏南京 210000

收稿日期:2018-07-30 修回日期:2018-09-12 发布日期:2019-08-14
通讯作者: 焦重庆(1981-),男,通信作者,博士,副教授,从事电力系统电磁兼容与电磁环境研究,E-mail:cqjiao@ncepu.edu.cn
作者简介:王永红(1963-),男,博士,高级工程师(教授级),从事电力系统继电保护与控制研究,E-mail:wyh88188@sina.com.cn;何日(1994-),女,硕士研究生,从事电力系统电磁兼容研究,E-mail:jennyandsun@163.com
基金资助:
国家自然科学基金资助项目（51307055）。

Analytical Study on Electromagnetic Shielding Characteristics of Wire Mesh

WANG Yonghong¹, XIAO Bing¹, HE Ri², HU Yifan², JIAO Chongqing², XU Keqiang³

1. State Grid Inner Mongolia East Electric Power Co., Ltd. Power Science Research Institute, Hohhot 010020, China;
2. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China;
3. Hengjingtong Electronic Technology Co., Ltd, Nanjing 210000, China

Received:2018-07-30 Revised:2018-09-12 Published:2019-08-14
Supported by:
This work is supported by National Natural Science Foundation of China (No.51307055).

摘要/Abstract

摘要： 基于金属网表面阻抗模型和全波仿真软件，讨论了金属网对平面波屏蔽效能计算公式的适用范围。在此基础上利用全波仿真软件，计算了金属网网孔形状为菱形时的屏蔽效能，对金属网的屏蔽机理进行了分析。根据传输线理论和金属网表面阻抗模型，将双层无限大金属网用传输线模型进行等效，提出了计算双层无限大金属网屏蔽效能的解析模型，通过解析模型计算结果与全波仿真结果相比较，验证了解析模型的准确性，进一步探讨了双层金属网的屏蔽特性以及与单层金属网屏蔽效能的差异。

关键词: 金属网, 平面波, 屏蔽效能, 屏蔽机理, 传输线理论

Abstract: Based on the surface impedance model of metal mesh and the full wave simulation software, in this article the applicable range of the formula for calculating the shielding effectiveness of metal mesh for plane wave is discussed.On this basis, when the shape of metal mesh is diamond, the shielding effectiveness of the metal mesh is calculated by using the full-wave simulation software, and then the mechanism of the wire mesh is analyzed. According to transmission line theory and the surface impedance of metal mesh, the transmission line model is equivalent to double-layer infinite metal mesh, and an analytical model for calculating shielding effectiveness of double-layer infinite metal mesh is proposed. Furthermore, shielding characteristics of the double-layer metal mesh and the difference between the single-layer metal mesh and the double-layer metal mesh are discussed.

Key words: wire mesh, plane wave, shielding effectiveness, shielding mechanism, transmission line theory

中图分类号:

TM153.5

王永红, 肖冰, 何日, 胡逸帆, 焦重庆, 徐克强. 金属网电磁屏蔽特性的解析研究[J]. 中国电力, 2019, 52(8): 78-84.

WANG Yonghong, XIAO Bing, HE Ri, HU Yifan, JIAO Chongqing, XU Keqiang. Analytical Study on Electromagnetic Shielding Characteristics of Wire Mesh[J]. Electric Power, 2019, 52(8): 78-84.

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金属网电磁屏蔽特性的解析研究

Analytical Study on Electromagnetic Shielding Characteristics of Wire Mesh

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