| 采用特高频检测技术的局部放电源定位方法 |
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| 引用本文： | 高文胜,丁登伟,刘卫东,冯瑞. 采用特高频检测技术的局部放电源定位方法[J]. 高电压技术, 2009, 35(11): 2680-2684 |
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| 作者姓名： | 高文胜 丁登伟 刘卫东 冯瑞 |
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| 作者单位： | 清华大学电机系,北京,100084 |
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| 摘 要： | 局部放电的发生伴随着电磁波的发射,电磁波在特高频段(300MHz~3GHz)的抗干扰能力很强,因此通过接受该频段的电磁波进行局部放电的检测与定位很有研究前景。近年来特高频法(ultra high frequency method,简称UHF)在局部放电的检测与定位工作中得到广泛推广。为改进确定时延的方法,准确定位放电源,采用了特高频法和信号传播时延来实现对局部放电源的定位。该法采用信号初始峰值法、相关法和能量最小值法求取信号传播时延,通过比较讨论3种方法的优劣,确定了一套求取时延的方案。最后用空间搜索法实现对缺陷中局部放电的定位。
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| 关 键 词： | 局部放电 特高频 时延 能量累积 空间搜索 定位 |
Location of PD by Searching in Space Using UHF Method |
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| GAO Wen-sheng , DING Deng-wei , LIU Wei-dong , FENG Rui. Location of PD by Searching in Space Using UHF Method[J]. High Voltage Engineering, 2009, 35(11): 2680-2684 |
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| Authors: | GAO Wen-sheng DING Deng-wei LIU Wei-dong FENG Rui |
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| Affiliation: | GAO Wen-sheng,DING Deng-wei,LIU Wei-dong,FENG Rui(Department of Electrical and Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | PD goes with emission of electromagnetic wave,the wave in the ultra high spectrum has strong anti-jamming ability,so there is sunshiny future to detect the partial discharge by receiving the ultra high spectrum electromagnetic wave.So far,the UHF method has been taken in the PD monitoring and location widely.The measurement of PD is a non-destructive and sensitive diagnostic tool for the condition assessment of insulating systems.Two major tasks of PD measurements may be distinguished,the type of the PD and... |
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| Keywords: | partial discharge(PD) UHF time delay cumulative energy searching in space location |
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