| GIS中局部放电电磁波的模式特性 |
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| 引用本文： | 刘君华,姚明,黄成军,段大鹏,钱勇,江秀臣.GIS中局部放电电磁波的模式特性[J].高电压技术,2009,35(7):1654-1660. |
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| 作者姓名： | 刘君华 姚明 黄成军 段大鹏 钱勇 江秀臣 |
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| 作者单位： | 1. 上海交通大学电气工程系,上海,200240
2. 上海电力公司生产技术部,上海,200122 |
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| 摘 要： | 超高频法(UHF)通过检测GIS中局部放电(简称局放)时产生的超高频电磁波信号实现局放检测,具有灵敏度高、抗干扰能力强等优点,在GIS现场在线监测中得到了广泛的应用和关注。为进一步研究GIS中局放产生的电磁波特性,从局放源的激励特性出发,采用时域有限差分法(FDTD)进行仿真计算分析,着重研究了GIS中局放激励的电磁波模式分布特性以及各模式分量与局放源之间的关系。研究结果表明,GIS中局放激励的电磁波各高次模式中TE11(0°)、TE21(0°)、TE31(0°)模式分量为相应模波的主导分量,电磁波信号在φ为0°和180°处最强,且电磁波各模式分量的大小与局放脉冲波形、局放源位置、局放通道长度等因素之间具有一定的关系特性。
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| 关 键 词： | GIS 局部放电 超高频 电磁波 模式 时域有限差分法 |
Characteristics of PD EM-wave Modes in GIS |
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| LIU Jun-hua
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YAO Ming
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HUANG Cheng-jun
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DUAN Da-peng
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QIAN Yong
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JIANG Xiu-chen.Characteristics of PD EM-wave Modes in GIS[J].High Voltage Engineering,2009,35(7):1654-1660. |
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| Authors: | LIU Jun-hua YAO Ming HUANG Cheng-jun DUAN Da-peng QIAN Yong JIANG Xiu-chen |
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| Affiliation: | 1.Department of Electrical Engineering;Shanghai Jiao Tong University;Shanghai 200240;China;2.Department of Production and Technology;Shanghai Municipal Electrical Power Company;Shanghai 200122;China |
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| Abstract: | In order to explore the characteristics of electromagnetic waves(EM-waves)which were excited by partial discharge in gas insulated switchgear(GIS),the model for analyzing the characteristics of PD signals in GIS is established and simulated by using finite difference time domain(FDTD)method.The characteristics of distribution of EM-wave modes which were excited by partial discharge in GIS and the relationship between EM-wave modes and PD source were emphatically analyzed.Firstly,the characteristics of EM-wa... |
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| Keywords: | GIS partial discharge UHF EM-wave mode FDTD |
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