| 绝缘子对GIS中电磁波传播特性影响的仿真研究 |
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| 引用本文： | 陈隽,;李劲彬,;夏天,;朱世明,;杨圆,;杨宁,;李军浩,;丁卫东. 绝缘子对GIS中电磁波传播特性影响的仿真研究[J]. 陕西电力, 2014, 0(11): 6-8 |
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| 作者姓名： | 陈隽, 李劲彬, 夏天, 朱世明, 杨圆, 杨宁, 李军浩, 丁卫东 |
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| 作者单位： | [1]国网湖北省电力公司电力科学研究院,湖北武汉430077; [2]国网高压电气设备现场试验技术重点实验室,湖北武汉430077; [3]中国电力科学研究院,北京100085; [4]西安交通大学电气工程学院,陕西西安710049 |
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| 基金项目： | 国家科技部863重大项目计划资助（2011AA-05A121）;国家电网公司2012年科技计划资助（[2012]-515,状态监测系统应用策略、标准体系及校验技术研究） |
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| 摘 要： | 特高频检测方法是GIS局部放电的有效检测方法。特高频电磁波信号在GIS中的传播会影响到其检测精度、检测结果的分析等。以220 kV GIS为基础,构建了无绝缘子和含有不同厚度绝缘子的仿真模型,基于时域有限差分算法(FDTD)仿真研究了绝缘子对GIS中电磁波传播特性的影响。研究结果表明电磁波信号经过绝缘子时会有约60%的衰减,绝缘子厚度则对GIS内电磁波信号的传播影响不大。
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| 关 键 词： | GIS 特高频 绝缘子 传播特性 |
Simulation Study on Influence of Insulator on Propagation Characteristics of Electromagnetic Wave in GIS |
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| Affiliation: | CHEN Jun,LI Jinbin,XIA Tian,ZHU Shiming,YANG Yuan,YANG Ning,LI Junhao( 1.State Grid Hubei Electric Power Research Institute, Wuhan 430077, China;State Grid Field Test Technology Key Laboratory of High Voltage Electrical Equipment, Wuhan 430077,China; 2.China Electric Power Research Institute,Beijing 100085,China; 3.School of Electrical Engineering, Xi＇an Jiaotong University, Xi＇an 710049, China) |
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| Abstract: | UHF detection method is an effective PD detection method.The UHF signal propagation characteristics in GIS will influence the detection accuracy and results analysis.Based on the 220 kV GIS,the paper establishes the simulation model of GIS both with and without insulator,and studies the influence of the insulator on propagation characteristics in GIS by using finite-difference time-domain algorithm （FDTD）.The results show that the attenuation of electromagnetic wave signal after the insulators will be about 60％,while the thickness of the insulation has little influence on the electromagnetic wave propagation. |
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| Keywords: | GIS UHF insulator propagation characteristics |
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