GIS内自由导电微粒缺陷的局部放电相位图谱
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摘要
GIS内自由导电微粒的存在是对GIS绝缘的最大威胁,如何检测GIS内自由导电微粒缺陷成为提高GIS设备运行可靠性亟待解决的问题之一。为此,搭建了GIS内自由导电微粒局部放电研究平台,明确了自由导电微粒造成的局部放电信号与微粒运动的关系,推导得到了理论局部放电相位图谱,该结果与实验结果相符。根据上述模型提出了GIS内自由导电微粒缺陷识别方法,并对现场工频局部放电试验的检测有效性进行研究。结果表明,GIS内自由导电微粒缺陷的理论局部放电相位图谱为正弦带状包络,呈现出对称性强、重复率低、放电全相位分布等特点;现场工频局部放电试验能够检测出不超过1 mm的铝质自由微粒,对GIS内自由导电微粒缺陷具有较高的检测有效性。研究为GIS内自由导电微粒缺陷的识别技术提供了理论支持。
The presence of free conductive particles in GIS is the greatest threat to GIS insulation. How to detect foreign matter defects in GIS, especially free conductive particles, is one of the problems to be urgently solved to improve the reliability of GIS equipment. Consequently, we established a research platform of partial discharge of free conductive particles in GIS, and analyzed the relationship between the partial discharge signal and the particle motion caused by free conductive particles. The theoretical phase resolved partial discharge pattern was deduced, which is in accordance with the experimental results. According to the model, the identification method for free conductive particle defects in GIS was proposed, and the effectiveness of free conducting particles defects in GIS was studied. The results show that the phase resolved partial discharge of free conducting particles in GIS is a sinusoidal envelope band. The pattern shows strong symmetry, low repetition rate and full phase distribution. The on-site power-frequency partial discharge tests can be performed to detect free aluminum particles less than 1 mm, and are highly effective in detecting the free conducting particles defects in GIS. This study provides theoretical support for the identification of free conductive particles defect in GIS.
The presence of free conductive particles in GIS is the greatest threat to GIS insulation. How to detect foreign matter defects in GIS, especially free conductive particles, is one of the problems to be urgently solved to improve the reliability of GIS equipment. Consequently, we established a research platform of partial discharge of free conductive particles in GIS, and analyzed the relationship between the partial discharge signal and the particle motion caused by free conductive particles. The theoretical phase resolved partial discharge pattern was deduced, which is in accordance with the experimental results. According to the model, the identification method for free conductive particle defects in GIS was proposed, and the effectiveness of free conducting particles defects in GIS was studied. The results show that the phase resolved partial discharge of free conducting particles in GIS is a sinusoidal envelope band. The pattern shows strong symmetry, low repetition rate and full phase distribution. The on-site power-frequency partial discharge tests can be performed to detect free aluminum particles less than 1 mm, and are highly effective in detecting the free conducting particles defects in GIS. This study provides theoretical support for the identification of free conductive particles defect in GIS.
引文
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[4]SRIVASTAVA K,MORCOS M.A review of some critical aspects of insulation design of GIS/GIL systems[C]∥Proceedings of 2001 IEEEPES Transmission and Distribution Conference and Exposition.Atlanta,USA:IEEE,2001:787-792.
[5]RIECHERT U,HOLAUS W.Ultra high-voltage gas-insulated switchgear-a technology milestone[J].European Transactions on Electrical Power,2012,22(1):60-82.
[6]郭璨,张乔根,游浩洋,等.工频下电场不均匀度对SF6/N2混合气体放电特性的影响与临界半径现象[J].高电压技术,2017,43(3):780-787.GUO Can,ZHANG Qiaogen,YOU Haoyang,et al.Influence of electric field non-uniformity on discharge characteristics and phenomenon of critical radius in SF6/N2 gas mixtures under power frequency voltage[J].High Voltage Engineering,2017,43(3):780-787.
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[9]李庆民,王健,李伯涛,等.GIS/GIL中金属微粒污染问题研究进展[J].高电压技术,2016,42(3):849-860.LI Qingmin,WANG Jian,LI Botao,et al.Review on metal particle contamination in GIS/GIL[J].High Voltage Engineering,2016,42(3):849-860.
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[12]姚陈果,周电波,陈攀,等.采用超高频法监测变电站设备局放水平及其早期预警[J].高电压技术,2011,37(7):1670-1676.YAO Chenguo,ZHOU Dianbo,CHEN Pan,et al.UHF-based monitoring for equipment PD within the substation and early warning[J].High Voltage Engineering,2011,37(7):1670-1676.
[13]李军浩,韩旭涛,刘泽辉,等.电气设备局部放电检测技术述评[J].高电压技术,2015,41(8):2583-2601.LI Junhao,HAN Xutao,LIU Zehui,et al.Review on partial discharge measurement technology of electrical equipment[J].High Voltage Engineering,2015,41(8):2583-2601.
[14]张广东,牛雪松,王晓飞,等.基于超高频法的GIS自由金属微粒局部放电检测与特性研究[J].工业仪表与自动化装置,2015(1):101-105.ZHANG Guangdong,NIU Xuesong,WANG Xiaofei,et al.Partial discharge detection and characteristics probe of free metal particles in GIS based on UHF method[J].Industrial Instrumentation&Automation,2015(1):101-105.
[15]白剑忠.基于超声和超高频检测法的GIS局部放电的研究[D].北京:华北电力大学,2013:23-25.BAI Jianzhong.Study of partial discharge in GIS based on ultrasonic and UHF detection[D].Beijing,China:North China Electric Power University,2013:23-25.
[16]丁登伟,高文胜,刘卫东.采用特高频法的GIS典型缺陷特性分析[J].高电压技术,2011,37(3):706-710.DING Dengwei,GAO Wensheng,LIU Weidong.Analysis on the typical partial discharge using UHF detection method for GIS[J].High Voltage Engineering,2011,37(3):706-710.
[17]黄亮,唐炬,凌超,等.基于多特征信息融合技术的局部放电模式识别研究[J].高电压技术,2015,41(3):947-955.HUANG Liang,TANG Ju,LING Chao,et al.Pattern recognition for partial discharge based on multi-feature fusion technology[J].High Voltage Engineering,2015,41(3):947-955.
[18]CHEN C Y,TAI C C,SU C C,et al.GIS partial discharge examination and classification from the on-line measurements[C]∥International Conference on Condition Monitoring and Diagnosis.Beijing,China:IEEE,2008:412-415.
[19]CAVALLINI A,MONTANARI G C,PULETTI F,et al.A new methodology for the identification of PD in electrical apparatus:properties and applications[J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(2):203-215.
[20]局部放电测量:GB/T 7354-2003[S].北京:中国标准出版社,2003.Partial discharge measurement:GB/T 7354-2003[S].Beijing,China:China Standard Press,2003.
[21]气体绝缘金属封闭输电线路现场交接试验导则:DL/T 304-2011[S].北京:中国电力出版社,2011.Guide for hand-over test of gas-insulated metal-enclosed transmission line on site:DL/T 304-2011[S].Beijing,China:China Electric Power Press,2011.
[22]ALBERTO T P.Charge and force on a conducting sphere between two parallel electrodes[J].Journal of Electrostatics,2002,56(2):199-217.
[23]SAKAI K I,ABELLA D L,KHAN Y,et al.Experimental studies of free conducting wire particle behavior between nonparallel plane electrodes with AC voltages in air[J].IEEE Transactions on Dielectrics and Electrical Insulation,2003,10(3):418-424.
[24]WU Zhicheng,ZHANG Qiaogen,SONG Jiajie,et al.Simulation and motion analysis of spherical free conducting particle between coaxial electrodes[C]∥Electrical Materials and Power Equipment(ICEMPE).Xi’an,China:IEEE,2017:324-327.
[25]中国电力出版社.国网冀北电力有限公司电力设备带电检测技术规范[M].北京:中国电力出版社,2014:48-60.China Electric Power Press.Online detection technical specification of electric power equipment for state grid Jibei Electric power company[M].Beijing,China:China Electric Power Press,2014:48-60.
[2]李军浩,韩旭涛,刘泽辉,等.电气设备局部放电检测技术述评[J].高电压技术,2015,41(8):2583-2601.LI Junhao,HAN Xutao,LIU Zehui,et al.Review on partial discharge measurement technology of electrical equipment[J].High Voltage Engineering,2015,41(8):2583-2601.
[3]唐志国,唐铭泽,李金忠,等.电气设备局部放电模式识别研究综述[J].高电压技术,2017,43(7):2263-2277.TANG Zhiguo,TANG Mingze,LI Jinzhong,et al.Review on partial lischarge fattern recognition of electrical equipment[J].High Voltage Engineering,2017,43(7):2263-2277.
[4]SRIVASTAVA K,MORCOS M.A review of some critical aspects of insulation design of GIS/GIL systems[C]∥Proceedings of 2001 IEEEPES Transmission and Distribution Conference and Exposition.Atlanta,USA:IEEE,2001:787-792.
[5]RIECHERT U,HOLAUS W.Ultra high-voltage gas-insulated switchgear-a technology milestone[J].European Transactions on Electrical Power,2012,22(1):60-82.
[6]郭璨,张乔根,游浩洋,等.工频下电场不均匀度对SF6/N2混合气体放电特性的影响与临界半径现象[J].高电压技术,2017,43(3):780-787.GUO Can,ZHANG Qiaogen,YOU Haoyang,et al.Influence of electric field non-uniformity on discharge characteristics and phenomenon of critical radius in SF6/N2 gas mixtures under power frequency voltage[J].High Voltage Engineering,2017,43(3):780-787.
[7]BOECK W.Insulation co-ordination of GIS,return of experience,on site tests and diagnostic techniques[J].Electra,1998,176:67-97.
[8]康钧,徐世山,李军,等.800 kV GIS设备现场冲击试验技术探讨[J].青海电力,2011,30(7):1-2.KANG Jun,XU Shishan,LI Jun,et al.Technical research for field impact test of 800 kV GIS equipment[J].Qinghai Electric Power,2011,30(7):1-2.
[9]李庆民,王健,李伯涛,等.GIS/GIL中金属微粒污染问题研究进展[J].高电压技术,2016,42(3):849-860.LI Qingmin,WANG Jian,LI Botao,et al.Review on metal particle contamination in GIS/GIL[J].High Voltage Engineering,2016,42(3):849-860.
[10]LAGHARI J R,QURESHI A H.A review of particle-contaminated gas breakdown[J].IEEE Transactions on Dielectrics and Electrical Insulation,1981,16(5):388-398.
[11]吴治诚,马径坦,王国利,等.工频局部放电试验与雷电冲击耐受试验对GIS内局部电场集中缺陷检测的有效性[J].高电压技术,2019,45(1):203-208.WU Zhicheng,MA Jingtan,WANG Guoli,et al.Effectiveness of power-frequency partial discharge tests and lightning impulse withstand tests to detect enhanced partial electrical field defects in GIS[J].High Voltage Engineering,2019,45(1):203-208.
[12]姚陈果,周电波,陈攀,等.采用超高频法监测变电站设备局放水平及其早期预警[J].高电压技术,2011,37(7):1670-1676.YAO Chenguo,ZHOU Dianbo,CHEN Pan,et al.UHF-based monitoring for equipment PD within the substation and early warning[J].High Voltage Engineering,2011,37(7):1670-1676.
[13]李军浩,韩旭涛,刘泽辉,等.电气设备局部放电检测技术述评[J].高电压技术,2015,41(8):2583-2601.LI Junhao,HAN Xutao,LIU Zehui,et al.Review on partial discharge measurement technology of electrical equipment[J].High Voltage Engineering,2015,41(8):2583-2601.
[14]张广东,牛雪松,王晓飞,等.基于超高频法的GIS自由金属微粒局部放电检测与特性研究[J].工业仪表与自动化装置,2015(1):101-105.ZHANG Guangdong,NIU Xuesong,WANG Xiaofei,et al.Partial discharge detection and characteristics probe of free metal particles in GIS based on UHF method[J].Industrial Instrumentation&Automation,2015(1):101-105.
[15]白剑忠.基于超声和超高频检测法的GIS局部放电的研究[D].北京:华北电力大学,2013:23-25.BAI Jianzhong.Study of partial discharge in GIS based on ultrasonic and UHF detection[D].Beijing,China:North China Electric Power University,2013:23-25.
[16]丁登伟,高文胜,刘卫东.采用特高频法的GIS典型缺陷特性分析[J].高电压技术,2011,37(3):706-710.DING Dengwei,GAO Wensheng,LIU Weidong.Analysis on the typical partial discharge using UHF detection method for GIS[J].High Voltage Engineering,2011,37(3):706-710.
[17]黄亮,唐炬,凌超,等.基于多特征信息融合技术的局部放电模式识别研究[J].高电压技术,2015,41(3):947-955.HUANG Liang,TANG Ju,LING Chao,et al.Pattern recognition for partial discharge based on multi-feature fusion technology[J].High Voltage Engineering,2015,41(3):947-955.
[18]CHEN C Y,TAI C C,SU C C,et al.GIS partial discharge examination and classification from the on-line measurements[C]∥International Conference on Condition Monitoring and Diagnosis.Beijing,China:IEEE,2008:412-415.
[19]CAVALLINI A,MONTANARI G C,PULETTI F,et al.A new methodology for the identification of PD in electrical apparatus:properties and applications[J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(2):203-215.
[20]局部放电测量:GB/T 7354-2003[S].北京:中国标准出版社,2003.Partial discharge measurement:GB/T 7354-2003[S].Beijing,China:China Standard Press,2003.
[21]气体绝缘金属封闭输电线路现场交接试验导则:DL/T 304-2011[S].北京:中国电力出版社,2011.Guide for hand-over test of gas-insulated metal-enclosed transmission line on site:DL/T 304-2011[S].Beijing,China:China Electric Power Press,2011.
[22]ALBERTO T P.Charge and force on a conducting sphere between two parallel electrodes[J].Journal of Electrostatics,2002,56(2):199-217.
[23]SAKAI K I,ABELLA D L,KHAN Y,et al.Experimental studies of free conducting wire particle behavior between nonparallel plane electrodes with AC voltages in air[J].IEEE Transactions on Dielectrics and Electrical Insulation,2003,10(3):418-424.
[24]WU Zhicheng,ZHANG Qiaogen,SONG Jiajie,et al.Simulation and motion analysis of spherical free conducting particle between coaxial electrodes[C]∥Electrical Materials and Power Equipment(ICEMPE).Xi’an,China:IEEE,2017:324-327.
[25]中国电力出版社.国网冀北电力有限公司电力设备带电检测技术规范[M].北京:中国电力出版社,2014:48-60.China Electric Power Press.Online detection technical specification of electric power equipment for state grid Jibei Electric power company[M].Beijing,China:China Electric Power Press,2014:48-60.