基于脉冲电流法的高压开关柜局部放电在线监测装置
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摘要
脉冲电流法局部放电检测通常用于电气设备出厂时的型式试验以及其他离线测试中。在充分分析开关柜局部放电检测的现状与问题后,设计了基于开关柜高压带电显示装置的局部放电在线检测的电路原理和信号提取方法。搭建了基于脉冲电流法的高压开关柜局部放电在线检测回路,开发了具备实时监测、判断与分析功能的后台软件。并在10 kV开关柜真型局部放电缺陷仿真平台上进行了真实放电的模拟试验,验证了基于脉冲电流法的高压开关柜局部放电在线监测装置的灵敏度与有效性。该研究对开关柜状态检修以及脉冲电流法在线检测理论研究具有较大意义,为10 kV配网设备局部放电在线监测提供了良好的实现方法。
The pulse current method for partial discharge detection is generally applied in type testing and other off-line tests of electrical equipment at delivery. After intensive analysis of the present situation and existing problems of partial discharge detection in switch cabinets, this paper designs the circuit principle and signal extraction method for partial discharge on-line detection based on a high Voltage Presence Indicating Systems(VPIS). It establishes a high voltage switch cabinet partial discharge on-line detection circuit based on the pulse current method and develops background software integrated with real-time monitoring, judging and analyzing functions. Furthermore, it carries out a real discharge simulation test on a real-type partial discharge defect simulation platform of a 10 kV switch cabinet and verifies the sensitivity and validity of the high-voltage switch cabinet partial discharge on-line monitoring device based on the pulse current method. The study presented in this paper is of great significance for switch cabinet maintenance and theoretical study on pulse current method on-line detection, and has provided a good implementation method for partial discharge on-line monitoring devices for 10 kV distribution network equipment.
The pulse current method for partial discharge detection is generally applied in type testing and other off-line tests of electrical equipment at delivery. After intensive analysis of the present situation and existing problems of partial discharge detection in switch cabinets, this paper designs the circuit principle and signal extraction method for partial discharge on-line detection based on a high Voltage Presence Indicating Systems(VPIS). It establishes a high voltage switch cabinet partial discharge on-line detection circuit based on the pulse current method and develops background software integrated with real-time monitoring, judging and analyzing functions. Furthermore, it carries out a real discharge simulation test on a real-type partial discharge defect simulation platform of a 10 kV switch cabinet and verifies the sensitivity and validity of the high-voltage switch cabinet partial discharge on-line monitoring device based on the pulse current method. The study presented in this paper is of great significance for switch cabinet maintenance and theoretical study on pulse current method on-line detection, and has provided a good implementation method for partial discharge on-line monitoring devices for 10 kV distribution network equipment.
引文
[1]刘云鹏,王会斌,王娟,等.高压开关柜局部放电UHF在线监测系统的研究[J].高压电器,2009,45(1):15-17.LIU Yunpeng,WANG Huibin,WANG Juan,et al.Research on UHF on-line monitoring system of high voltage switch cabinets[J].High Voltage Apparatus,2009,45(1):15-17.
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[8]王有元,李寅伟,陆国俊,等.开关柜局部放电暂态对地电压传播特性的仿真分析[J].高电压技术,2011,37(7):1683-1688.WANG Youyuan,LI Yinwei,LU Guojun,et al.Simulation of transient earth voltages aroused by partial discharge in switchgears[J].High Voltage Engineering,2011,37(7):1683-1688.
[9]任明,彭华东,陈晓清,等.采用暂态对地电压法综合检测开关柜局部放电[J].高电压技术,2010,36(10):2460-2466.REN Ming,PENG Huadong,CHEN Xiaoqing,et al.Application of the transient ground voltage method to comprehensive detection of partial discharge in switchgear[J].High Voltage Engineering,2010,36(10):2460-2466.
[10]蒋愈勇,习伟,刘立斌,等.基于IEC61850的电子式互感器在线监测与校验系统设计[J].电力系统保护与控制,2017,45(21):117-122.JIANG Yuyong,XI Wei,LIU Libin,et al.Design of online monitoring and calibration system for electronic transformer based on IEC61850[J].Power System Protection and Control,2017,45(21):117-122.
[11]张露,王永勤,贺家慧,等.特高压变电站工频电磁场对避雷器在线监测装置测量准确度影响研究[J].电力系统保护与控制,2018,46(3):164-169.ZHANG Lu,WANG Yongqin,HE Jiahui,et al.Accuracy examination of linkage current online measurement of surge arresters under power frequency interference of electric field and magnetic field in the ultra-high voltage substations[J].Power System Protection and Control,2018,46(3):164-169.
[12]LI Y,WANG Y,LU G,et al.Simulation of transient earth voltages aroused by partial discharge in switchgears[C]//2010 International Conference on High Voltage Engineering and Application(ICHVE),October 11-14,2010,New Orleans,LA,USA:309-312.
[13]苏东,马仲能,李成翔,等.配网开关柜全生命周期成本模型及敏感度分析[J].电力系统保护与控制,2018,46(1):150-155.SU Dong,MA Zhongneng,LI Chengxiang,et al.Life cycle cost model and sensitivity analysis of switchgear[J].Power System Protection and Control,2018,46(1):150-155.
[14]陈攀.基于信号能量特征的开关柜局部放电监测及故障模式识别方法研究[D].重庆:重庆大学,2014.CHEN Pan.Research on partial discharge monitoring and fault pattern recognition in switchgear based on the characteristics of the signal energy[D].Chongqing:Chongqing University,2014.
[15]ZHANG Delong,LI Jianlin,HUI Dong.Coordinated control for voltage regulation of distribution network voltage regulation by distributed energy storage systems[J].Protection and Control of Modern Power Systems,2018,3(3):35-42.DOI:10.1186/s41601-018-0077-1.
[16]冯波,肖代波,李毅,等.暂态对地电压和超声法用于开关柜不同湿度PD检测研究[J].高压电器,2015,51(4):67-71,77.FENG Bo,XIAO Daibo,LI Yi,et al.Detection of partial discharge in switchgear under different humidity using transient earth voltage and ultrasonic method[J].High Voltage Apparatus,2015,51(4):67-71,77.
[17]YAO M.The application of temporary earth voltage(TEV)measurement in the online monitoring of the partial discharge of HV switch cabinet[C]//2010 China International Conference on Electricity Distribution(CICED),September 13-16,2010,Nanjing,China:1-6.
[18]曾雄杰,江健武,侯俊.TEV和UHF在10 kV开关柜带电检测中的应用[J].高压电器,2012,48(1):41-47.ZENG Xiongjie,JIANG Jianwu,HOU Jun.Application of TEV and UHF in PD detection for the live 10 kVswitchgear[J].High Voltage Apparatus,2012,48(1):41-47.
[19]High-voltage test techniques-partial discharge measurements:IEC270[S].2000.
[20]陈庆祺,张伟平,刘勤锋,等.开关柜局部放电暂态对地电压的分布特性研究[J].高压电器,2012,48(10):88-93.CHEN Qingqi,ZHANG Weiping,LIU Qinfeng,et al.Research of transient earth voltage distribution characteristics by partial discharge in switchgears[J].High Voltage Apparatus,2012,48(10):88-93.
[2]关永刚,钱家骊.射频法在高压开关柜局放监测中的应用研究[J].高压电器,2001,37(5):1-3.GUAN Yonggang,QIAN Jiali.Research on the application of the RF method on high voltage switch cabinet PDmonitoring[J].High Voltage Apparatus,2001,37(5):1-3.
[3]尚鹏,王一飞,赵磊,等.高压开关柜局部放电检测分析[J].电子世界,2013(22):76-77.SHANG Peng,WANG Yifei,ZHAO Lei,et al.Detection and analysis of high voltage switch cabinet partial discharge[J].Electronics World,2013(22):76-77.
[4]崔在玉,江昌元,朴基俊.预防气体绝缘开关装置故障的超高频局部放电在线实时监控系统[J].电网技术,2007,31(7):51-54.CUI Zaiyuan,JIANG Changyuan,PIAO Jijun.UHF partial discharge on-line real-time monitoring system preventing failure of gas insulation switch devices[J].Power System Technology,2007,31(7):51-54.
[5]田勇,田景林.6-10 kV开关柜事故统计分析与改进意见[J].东北电力技术,1996(8):5-10.TIAN Yong,TIAN Jinglin.Statistical accident analysis and improvement suggestions for 6-10 kV switch cabinets[J].Northeast Electric Power Technology,1996(8):5-10.
[6]程述一,律方成,谢庆,等.基于暂态对地电压和超声阵列信号的变压器局放定位方法[J].电工技术学报,2012,27(4):255-262.CHENG Shuyi,LüFangcheng,XIE Qing,et al.Study of partial discharge locating method in transformers based on transient earth voltage and ultrasonic array signals[J].Transactions of China Electrotechnical Society,2012,27(4):255-262.
[7]陈希.开关柜内部绝缘缺陷的检测与研究[D].武汉:华中科技大学,2012.CHEN Xi.Detection and research on the switchboard’s internal insulation fault[D].Wuhan:Huazhong University of Science&Technology,2012.
[8]王有元,李寅伟,陆国俊,等.开关柜局部放电暂态对地电压传播特性的仿真分析[J].高电压技术,2011,37(7):1683-1688.WANG Youyuan,LI Yinwei,LU Guojun,et al.Simulation of transient earth voltages aroused by partial discharge in switchgears[J].High Voltage Engineering,2011,37(7):1683-1688.
[9]任明,彭华东,陈晓清,等.采用暂态对地电压法综合检测开关柜局部放电[J].高电压技术,2010,36(10):2460-2466.REN Ming,PENG Huadong,CHEN Xiaoqing,et al.Application of the transient ground voltage method to comprehensive detection of partial discharge in switchgear[J].High Voltage Engineering,2010,36(10):2460-2466.
[10]蒋愈勇,习伟,刘立斌,等.基于IEC61850的电子式互感器在线监测与校验系统设计[J].电力系统保护与控制,2017,45(21):117-122.JIANG Yuyong,XI Wei,LIU Libin,et al.Design of online monitoring and calibration system for electronic transformer based on IEC61850[J].Power System Protection and Control,2017,45(21):117-122.
[11]张露,王永勤,贺家慧,等.特高压变电站工频电磁场对避雷器在线监测装置测量准确度影响研究[J].电力系统保护与控制,2018,46(3):164-169.ZHANG Lu,WANG Yongqin,HE Jiahui,et al.Accuracy examination of linkage current online measurement of surge arresters under power frequency interference of electric field and magnetic field in the ultra-high voltage substations[J].Power System Protection and Control,2018,46(3):164-169.
[12]LI Y,WANG Y,LU G,et al.Simulation of transient earth voltages aroused by partial discharge in switchgears[C]//2010 International Conference on High Voltage Engineering and Application(ICHVE),October 11-14,2010,New Orleans,LA,USA:309-312.
[13]苏东,马仲能,李成翔,等.配网开关柜全生命周期成本模型及敏感度分析[J].电力系统保护与控制,2018,46(1):150-155.SU Dong,MA Zhongneng,LI Chengxiang,et al.Life cycle cost model and sensitivity analysis of switchgear[J].Power System Protection and Control,2018,46(1):150-155.
[14]陈攀.基于信号能量特征的开关柜局部放电监测及故障模式识别方法研究[D].重庆:重庆大学,2014.CHEN Pan.Research on partial discharge monitoring and fault pattern recognition in switchgear based on the characteristics of the signal energy[D].Chongqing:Chongqing University,2014.
[15]ZHANG Delong,LI Jianlin,HUI Dong.Coordinated control for voltage regulation of distribution network voltage regulation by distributed energy storage systems[J].Protection and Control of Modern Power Systems,2018,3(3):35-42.DOI:10.1186/s41601-018-0077-1.
[16]冯波,肖代波,李毅,等.暂态对地电压和超声法用于开关柜不同湿度PD检测研究[J].高压电器,2015,51(4):67-71,77.FENG Bo,XIAO Daibo,LI Yi,et al.Detection of partial discharge in switchgear under different humidity using transient earth voltage and ultrasonic method[J].High Voltage Apparatus,2015,51(4):67-71,77.
[17]YAO M.The application of temporary earth voltage(TEV)measurement in the online monitoring of the partial discharge of HV switch cabinet[C]//2010 China International Conference on Electricity Distribution(CICED),September 13-16,2010,Nanjing,China:1-6.
[18]曾雄杰,江健武,侯俊.TEV和UHF在10 kV开关柜带电检测中的应用[J].高压电器,2012,48(1):41-47.ZENG Xiongjie,JIANG Jianwu,HOU Jun.Application of TEV and UHF in PD detection for the live 10 kVswitchgear[J].High Voltage Apparatus,2012,48(1):41-47.
[19]High-voltage test techniques-partial discharge measurements:IEC270[S].2000.
[20]陈庆祺,张伟平,刘勤锋,等.开关柜局部放电暂态对地电压的分布特性研究[J].高压电器,2012,48(10):88-93.CHEN Qingqi,ZHANG Weiping,LIU Qinfeng,et al.Research of transient earth voltage distribution characteristics by partial discharge in switchgears[J].High Voltage Apparatus,2012,48(10):88-93.