| 由UHF信号估算油中尖-板电极局放脉冲波形 |
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| 引用本文： | 周力行,李卫国,文习山. 由UHF信号估算油中尖-板电极局放脉冲波形[J]. 高电压技术, 2006, 32(6): 31-34 |
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| 作者姓名： | 周力行 李卫国 文习山 |
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| 作者单位： | 长沙理工大学电气与信息工程学院,长沙,410076;武汉大学电气工程学院,武汉,430072;华北电力大学电气工程学院,北京,102201;武汉大学电气工程学院,武汉,430072 |
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| 摘 要： | 从电磁辐射理论出发,建立了局部放电脉冲电流的电磁辐射模型,讨论了变压器油箱外壳对局部放电辐射的影响。在此基础上提出了利用UHF信号估算油中尖-板电极局部放电脉冲电流波形的方法。仿真及模拟实验表明,该法能有效估算油中尖-板电极局部放电脉冲电流波形,可供变压器局放模式识别和绝缘诊断参考。
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| 关 键 词： | 局部放电 变压器 特高频 偶极辐射 脉冲电流波形 |
| 文章编号： | 1003-6520(2006)06-0031-04 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005-08-30 |
Partial Discharge Pulse Waveform Estimation of PD Pulse of Point-plate Electrode in Oil Based on UHF Signal |
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| ZHOU Lixing,LI Weiguo,WEN Xishan. Partial Discharge Pulse Waveform Estimation of PD Pulse of Point-plate Electrode in Oil Based on UHF Signal[J]. High Voltage Engineering, 2006, 32(6): 31-34 |
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| Authors: | ZHOU Lixing LI Weiguo WEN Xishan |
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| Affiliation: | 1. College of Electrical Power and Information Engineering, Changsha University of Science Technology, Changsha 410076, China; 2. School of Electrical Engineering, Wuhan University, Wuhan 430072; China; 3. School of Electrical Engineering, North China Electric Power University, Beijing 102201, China |
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| Abstract: | In this paper,the radiation model of partial discharge(PD) pulse current is established based on the theory of electromagnetic radiation.The influence of metallic tank on the radiation field has been considered in this model.Based on which,a new method for estimating the PD pulse waveform by using its UHF signals is presented.The result of simulating experiment shows that the method can estimate the PD pulse effectively and will contribute to the PD pattern recognition and insulation defect diagnoses. |
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| Keywords: | partial discharge transformer UHF dipole radiation pulse current waveform |
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