GIS光局放诊断及闪弧侦测保护系统的研究
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摘要
随着电网快速发展,气体绝缘组合开关设备(GIS)因局部放电而绝缘事故频发。国内广泛应用的特高频法误报警率高、不可靠,极大地制约了GIS设备状态检修的发展。本文在分析局部放电所产生的光效应的基础上设计了一种新型的基于弧光技术的光局放监测系统,其组成包括光局放诊断系统和闪弧侦测保护系统两部分。光局放诊断系统能够在极短时间内准确诊断局部放电信号,给出具体的放电类型并定位,适用于带电检测。当GIS内部出现超限弧光时,闪弧侦测保护系统能准确发出报警信号,给运维人员提供精准的故障气室定位,适用于长期在线监测。这两个系统的成功组合运用,将会大大提高开关运行的安全性与可靠性,极大地促进GIS设备的状态检修技术发展。
With the rapid development of the power grid,the gas insulated combination switch equipment(GIS) has been frequently isolated due to partial discharge. The high frequency false alarm rate is high and unreliable,which restricts the development of state maintenance of GIS equipment. Effect of light based on the analysis of partial discharge based on the design of a new kind of technology based on arc discharge monitoring system,the light of its constituent discharge diagnosis system including light flash arc detection and protection system of two parts. The diagnostic system can accurately diagnose the local discharge signal in a very short time,give the specific discharge type and position,apply to the electric test. When the overlimit arc occurs inside the GIS,the flash-arc detection protection system can send out the alarm signal accurately and provide accurate fault gas room positioning for operation and maintenance personnel,which is suitable for long-term online monitoring. The successful combination of these two systems will greatly improve the security and reliability of switching operation,and greatly promote the development of state maintenance technology of GIS equipment.
With the rapid development of the power grid,the gas insulated combination switch equipment(GIS) has been frequently isolated due to partial discharge. The high frequency false alarm rate is high and unreliable,which restricts the development of state maintenance of GIS equipment. Effect of light based on the analysis of partial discharge based on the design of a new kind of technology based on arc discharge monitoring system,the light of its constituent discharge diagnosis system including light flash arc detection and protection system of two parts. The diagnostic system can accurately diagnose the local discharge signal in a very short time,give the specific discharge type and position,apply to the electric test. When the overlimit arc occurs inside the GIS,the flash-arc detection protection system can send out the alarm signal accurately and provide accurate fault gas room positioning for operation and maintenance personnel,which is suitable for long-term online monitoring. The successful combination of these two systems will greatly improve the security and reliability of switching operation,and greatly promote the development of state maintenance technology of GIS equipment.
引文
[1]王昌长,李福祺,高胜友.电气设备的在线监测与故障诊断.北京:清华大学出版社,2006:100-201.WANGChangchang,LIFuqi,GAOShengyou.Onlinemonitoring and fault diagnosis of electrical equipment. Beijing:tsinghua university press,2006:100-201.
[2]王鹏皓,闫杰,王天正.紫外成像法的GIS盆式绝缘子局部放电研究[J].高压电器,2015,51(9):0034-0038.WANG Penghao,YAN Jie,WANG Tianzheng. Study onpartial discharge of GIS basin insulator with uv imaging method[J].High voltage electric equipment,2015,51(9):0034-0038.
[3]唐炬,曾福平,范庆涛,等.基于荧光光纤检测GIS局部放电的多重分形谱识别[J].高电压技术,2014,40(2):465-473.TANG Ju,ZENG Fuping,FAN Qingtao,et al. Multi-fractal spectrumidentification based on fluorescence fiber detection for local discharge of GIS[J]. High voltage technology,2014,40(2):465-473.
[4]黄鹏.高速电弧光保护系统及应用研究[D].广州:华南理工大学,2012.HUANG Peng. High speed arc light protection system andapplication research[D]. Guangzhou:south China university oftechnology,2012.
[5]Xiaodong Wang,Baoqing Li,Zhixiong Xiao,et al. An ultra-sensitive optical MEMS sensor for partial discharge detection[J]. J.Micromech. Microeng.,2005,15(2005)521–527.
[2]王鹏皓,闫杰,王天正.紫外成像法的GIS盆式绝缘子局部放电研究[J].高压电器,2015,51(9):0034-0038.WANG Penghao,YAN Jie,WANG Tianzheng. Study onpartial discharge of GIS basin insulator with uv imaging method[J].High voltage electric equipment,2015,51(9):0034-0038.
[3]唐炬,曾福平,范庆涛,等.基于荧光光纤检测GIS局部放电的多重分形谱识别[J].高电压技术,2014,40(2):465-473.TANG Ju,ZENG Fuping,FAN Qingtao,et al. Multi-fractal spectrumidentification based on fluorescence fiber detection for local discharge of GIS[J]. High voltage technology,2014,40(2):465-473.
[4]黄鹏.高速电弧光保护系统及应用研究[D].广州:华南理工大学,2012.HUANG Peng. High speed arc light protection system andapplication research[D]. Guangzhou:south China university oftechnology,2012.
[5]Xiaodong Wang,Baoqing Li,Zhixiong Xiao,et al. An ultra-sensitive optical MEMS sensor for partial discharge detection[J]. J.Micromech. Microeng.,2005,15(2005)521–527.