设计了一种可提取局部放电超高频信号的微带天线，测试了天线的频率响应，并搭建了一套基于脉冲电流法和超高频法的局部放电检测系统，提取了SF6气体在针板间隙和绝缘介质内部空穴中的放电信号，比较分析了微带天线与高频罗戈夫式线圈的检测性能。结果表明：这种新型超高频天线能够有效提取局部放电信号，并且小型轻便，现场安装无需改变电气回路，抗干扰能力优于高频罗氏线圈，且能为放电类型的识别和干扰信号的排除提供参考，适于变电站GIS类设备的局部放电在线监测。
A micro-strip antenna which can extract ultrahigh frequency(UHF) signal of partial discharge (PD) was designed. The frequency response of the antenna was tested, and a PD detection system based on the pulse current method and UHF method was designed to extract the PD signal of SF6 gas in the needle plate gap and internal hole of insulating medium. The detection properties of the micro-strip anten-na and the Rogowski coil were compared. The results show that the new small UHF antenna could effec-tively extract partial discharge signal, needn’t change the electrical circuit when used, and its anti-interfer-ence ability is better than that of Rogowski coil, which could provide references to the identification of discharge type and exclusion of interference signals, suitable for monitoring the PD of GIS equipment on-line.
参考文献
| [1] | Hoshino T.;Kato K.;Hayakawa N.;Okubo H. .A novel technique for detecting electromagnetic wave caused bypartial discharge in GIS[J].IEEE Transactions on Power Delivery,2001(4):545-551. |
| [2] | Raymond Bell;Chris Charlson;Shaun Paul Halliday;Terry Irwin;Jose Lopez-Rolclan;John Nixon .High-Voltage Onsite Commissioning Tests for Gas-Insulated Substations Using UHF Partial Discharge Detection[J].IEEE Transactions on Power Delivery,2003(4):1187-1191. |
| [3] | 姚勇,岳彦峰,黄兴泉.GIS超高频/超声波局放检测方法的现场应用[J].高电压技术,2008(02):422-424. |
| [4] | 张依强,吴广宁,刘继午,罗杨,徐慧慧,王鹏,曹开江.超高频法提取方波脉冲下的局部放电信号[J].绝缘材料,2012(02):53-56,60. |
| [5] | 成永红,谢小军,陈玉,胡学胜,朱哲蕾.气体绝缘系统中典型缺陷的超宽频带放电信号的分形分析[J].中国电机工程学报,2004(08):99-102. |
| [6] | 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(01):47-49. |
| [7] | 李继胜,赵学风,杨景刚,黎大健,李彦明.GIS典型缺陷局部放电测量与分析[J].高电压技术,2009(10):2440-2445. |
| [8] | 陈安明,杨洋,黄文龙,张智勇,付祥波.基于SF6分解产物的GIS放电故障诊断分析[J].绝缘材料,2013(02):83-85. |
| [9] | Ming Yao;Chengjun Huang;Jiang Wang.Investiga-tion of PD Electromagnetic Wave Characteristics in GIS[A].,2008:96-100. |
| [10] | 杨俊坤,彭詠涛,谭向宇,王科.GIS设备中通过SF6气体分解产物检测判定放电类型的研究[J].绝缘材料,2012(02):61-64. |
| [11] | 孙才新,许高峰,唐炬,侍海军,朱伟.检测GIS局部放电的内置传感器的模型及性能研究[J].中国电机工程学报,2004(08):89-94. |
| [12] | 钱勇,黄成军,江秀臣,肖燕.基于超高频法的GIS局部放电在线监测研究现状及展望[J].电网技术,2005(01):40-43,55. |
| [13] | 李信,李成榕,丁立健,杨静,赵清娇,沈小军.新型GIS局放超高频传感器抑制干扰的研究[J].高电压技术,2004(02):37-39. |
| [14] | 潘瑞琼,孟忠.一种GIS绝缘子预埋天线式超高频局部放电传感器的研究与应用[J].华北电力技术,2012(04):19-22. |
| [15] | 田朝勃,索南加乐,罗苏南,杨奖利.应用于GIS保护及监测的罗氏线圈电子式电流互感器[J].中国电力,2003(10):53-56. |
| [16] | 赵学风,孙振权,姚秀,李彦明.冲击电压下局部放电测量用高频电流传感器[J].高电压技术,2009(11):2704-2708. |
| [17] | 孙强,董明,任重,任明,李彦明,邱爱慈.现场用GIS冲击耐压试验及局部放电检测装置设计[J].高电压技术,2012(03):639-644. |
| [18] | 唐炬,宋胜利,孙才新,李剑.用于局部放电在线监测的高频微电流传感器[J].仪器仪表学报,2003(05):520-524. |
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