王文浩,胡锡幸,郦于杰,何文林,徐华,刘江明
WANG Wenhao,HU Xixing,LI Yujie,HE Wenlin,XU Hua,LIU Jiangming

• 1:国网浙江省电力公司电力科学研究院
• 2:国网浙江省电力公司杭州供电公司
• 3:国网浙江省电力公司检修分公司

摘要(Abstract)：

针对一起1 100 kV GIS开关投切后内置式特高频传感器的报警案例,利用特高频信号的传输特性和模式识别技术成功实现了故障定位,进而得出了特高频信号在不同气室间的衰减规律。跟踪分析故障气室特高频信号幅值和在线谱图信息,通过故障气室解体找到了放电点,验证了之前诊断分析的正确性,为特高频法在特高压GIS工程中的应用提供了有效例证。最后提出了特高频法在现场检测的几点建议。
The case that built-in type UHF sensor alarmed after 1 100 kV GIS circuit breaker switching is presented. The fault is located successfully based on the propagation characteristics and pattern recognition techniques of UHF signals, and then attenuation rule of UHF signals in different gas chambers is concluded.By tracking and analyzing the UHF signal amplitude and on-line frequency spectrogram information and detecting discharge point by faulty gas chamber disassembly, the above-mentioned diagnosis and analysis is proved correct, providing an effective example for application of UHF-based method in UHV GIS projects. In the final, the paper brings forward some suggestions on field detection of UHF-based method.

关键词(KeyWords)： 特高压;局部放电;特高频法;衰减特性;典型谱图;定位技术
UHV;partial discharge;UHF;attenuation characteristics;typical spectrogram;location technology

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王文浩,胡锡幸,郦于杰,何文林,徐华,刘江明
WANG Wenhao,HU Xixing,LI Yujie,HE Wenlin,XU Hua,LIU Jiangming

DOI: 10.19585/j.zjdl.2015.04.003

参考文献(References)：

• [1]徐建源,王亮,李爽.特高压GIS隔离开关操作时其壳体电压暂态特性仿真分析[J].高电压技术,2012,38(2):228-294.
• [2]刘振亚.特高压电网[M].北京:中国经济出版社,2005.
• [3]舒印彪.1 000 kV交流特高压输电技术的研究与应用[J].电网技术,2005,29(19):1-6.
• [4]舒印彪,张文亮.特高压输电若干关键技术研究[J].中国电机工程学报,2007,27(31):1-6.
• [5]肖燕,郁惟镛.GIS中局部放电在线监测研究的现状与展望[J].高电压技术,2005,31(1):47-49.
• [6]李信,李成榕,丁立健,等.基于超高频信号检测GIS局放模式识别[J].高电压技术,2003,29(11):26-30.
• [7]李信.GIS局部放电特高频检测技术的研究[D].北京:华北电力大学,2005.