低环温下特高压GIS设备SF_6气体状态管理系统研究
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摘要
特高压GIS设备中大量采用纯净SF_6气体作为绝缘和灭弧介质。SF_6气体的温度、湿度、纯度及其分解产物是影响特高压GIS设备可靠性重要因素之一。随着特高压工程大规模建设,出现极低温站址,此环境下SF_6气体易液化和出现高概率内部放电故障,严重影响特高压电网安全稳定运行。为提高低环温下特高压GIS设备运行可靠性,文中基于不同媒介热平衡理论和一定工况下气体状态方程,并采用红外温度采集、微量气体微积分分析及电化学检测技术设计一种新型SF_6气体状态管理系统。同时介绍了系统功能、硬件结构和软件控制流程。通过现场应用,数据检测可靠、系统运行稳定,应用结果表明该新型SF_6气体状态管理系统可确保低环温下特高压GIS设备安全稳定运行。
The temperature,humidity,purity and decomposition products of SF_6 gas are important factors affecting the reliability of UHV GIS equipment. SF_6 gas is easy to liquefy and induce internal discharge failure at low ambient temperature toseriously threaten the safe and stable operation of UHV power grid. In order to improve the reliability of the GIS equipment at low ambient temperature,this paper designs a new comprehensively on-line monitoring system of SF_6 based onthe heat balance theory of different media and the gas state equation,in which the technologies of infrared temperature acquisition,trace gas analysis viacalculus,and electrochemical measurement are used. In addition,it introduces the system function,the hardware structure,and the software control flow. Practical applications show that this system works stably,and the measurement data are reliable,indicating the new SF_6 state management system can ensure safe and stable operation of UHV GIS equipment at low ambient temperature.
The temperature,humidity,purity and decomposition products of SF_6 gas are important factors affecting the reliability of UHV GIS equipment. SF_6 gas is easy to liquefy and induce internal discharge failure at low ambient temperature toseriously threaten the safe and stable operation of UHV power grid. In order to improve the reliability of the GIS equipment at low ambient temperature,this paper designs a new comprehensively on-line monitoring system of SF_6 based onthe heat balance theory of different media and the gas state equation,in which the technologies of infrared temperature acquisition,trace gas analysis viacalculus,and electrochemical measurement are used. In addition,it introduces the system function,the hardware structure,and the software control flow. Practical applications show that this system works stably,and the measurement data are reliable,indicating the new SF_6 state management system can ensure safe and stable operation of UHV GIS equipment at low ambient temperature.
引文
[1]颜湘莲,王承玉,杨韧,等.应用SF_6气体分解产物的高压开关设备故障诊断[J].电网技术,2011,35(12):118-123.YAN Xianglian,WANG Chengyu,YANG Ren,et al.Fault diagnosis of high voltage switchgears by decomposition products of SF_6[J].Power System Technology,2011,35(12):118-123.
[2]陆生贵,蔡声镇,苏伟,等.一种高稳定性的SF_6气体在线监测系统的设计与实现[J].福建师范大学学报(自然科学版),2008,24(5):53-56.LU Shenggui,CAI Shengzhen,SU Wei,et al.Design and implementa-tion of a high stable SF_6 gas on-line monitoring system[J].Journal of Fujian Normal University(Natural Science Edition),2008,24(5):53-56.
[3]汪金星,杨韧,郑小川.SF_6开关设备带电测试新技术在陕西电网的应用[J].陕西电力,2008,36(11):15-17.WANG Jinxing,YANG Ren,ZHENG Xiaochuan.Application of novel live test methods for SF_6 switch equipment to Shanxi Power Grid[J].Shaanxi Electric Power,2008,36(11):15-17.
[4]刘永,印华,姚强,等.气体分析技术在GIS故障定位和故障类型判断中的应用[J].高压电器,2009,45(3):132-134.LIU Yong,YIN Hua,YAO Qiang,et al.The appliction of gas analysis technology to fault location and fault diagnosis of GIS[J].High Voltage Appratus,2009,45(3):132-134.
[5]黄春.SF_6气体分析系统的研制[D].郑州:郑州大学,2006.HUANG Chun.Development of SF_6 gas analysis system[J].Zhengzhou:Zhengzhou University,2006.
[6]颜湘莲,王承玉,季严松,等.开关设备中SF_6气体分解产物测试技术[J].电网技术,2010,34(s2):1-6.YAN Xianglian,WANG Chengyu,JI Yansong,et al.Detect techniques for decomposition products of SF_6 in switchgears[J].Power System Technology,2010,34(s2):1-6.
[7]CHU F Y.SF_6 decomposition in gas insulated equipment[J].IEEE Transactions on Dielectrics and Electrical Insulation,1986,21(5):693-725.
[8]TOMINAGA S,KUWAHARA H,HIROOKA K,et al.SF_6gas analysis technique and its application for evaluation of internal conditions in SF_6 gas equipment[J].IEEE Transactions on Power Apparatus and Systems 1981,100(9):4196-4206.
[9]王春宁.SF_6气体综合在线监测装置[J].高压电器,2005,41(2):152-154.WANG Chunning.Comprehensive on-line monitoring device of SF_6 gas[J].High Voltage Apparatus,2005,41(2):152-154.
[10]李建基.SF_6在高压断路器和GIS不同放电下的分解物[J].华通技术,1992(3):58-64.LI Jianji.The decompositions of SF_6 in high voltage circuit breaker and GIS under different discharge[J].Hua Tong Technology,1992(3):58-64.
[11]刘可龙.SF_6气体在线监测技术的现状及发展趋势[J].通信电源技术,2013,30(6):83-85.LIU Kelong.SF_6 gas monitoring online technology status and development trend[J].Telecom Power Technology,2013,30(6):83-85.
[12]徐光跃,骆玲,文劲宇.基于嵌入式Linux的高压开关室SF_6气体在线监测系统[J].电工技术,2007(2):30-33.XU Guangyue,LUO Ling,WEN Jinyu.Online SF_6monitonring system for circuit breaker on embedded Linux[J].Electric Engineering,2007(2):30-33.
[13]电力设备预防性试验规程:DL/T 596-1996[S].1997.Preventive test code forelectric power equipment:DL/T596-1996[S].1997.
[14]师晓岩,查玮,孙福,等.UHV GIS内部温度场的红外热诊断技术[J].高电压技术,2007,33(6):16-20.SHI Xiaoyan,CHA Wei,SUN Fu,et al.Inner temperature distribution of UHV GIS using infrared thermo diagnosis technology[J].High Voltage Engineering,2007,33(6):16-20.
[15]陈衡,侯善敬.电力设备故障红外诊断[M].北京:中国电力出版社1999.CHEN Heng,HOU Shanjing.Infrared diagnosis of power equipment fault[M].Beijing:China Electric Power Press,1999.
[16]吴晓文,舒乃秋,李洪涛,等.基于光纤光栅的气体绝缘开关母线温度在线监测系统[J].电力自动化设备,2013,33(4):155-160.WU Xiaowen,SHU Naiqiu,LI Hongtao,et al.Online monitoring system of gas insulated switch busbar temperature based on fiber bragg grating[J].Electric Power Automation Equipment,2013,33(4):155-160.
[17]罗志,王杰.高压开关机械故障诊断平台开发[J].电网技术,2007,31(s1):134-136.LUO Zhi,WANG Jie.Development of mechanical fault analysis and diagnosis platform for HV circuit breaker[J].Power System Technology,2007,31(s1):134-136.
[18]六氟化硫电气设备中气体管理和检测导则:GB/T8905-2012[S].2012.The guide for management and measuring SF_6 gas in electrical equipment:GB/T 8905-2012[S].2012.
[19]Guidelines for the checking and treatment of sulfur hexafluoride(SF_6)taken from electrical equipment and specification for its reuse:IEC 60480-2004[S].2004.
[20]SF_6电气设备中绝缘气体湿度测量方法:DL 506-2007[S].2007.Method of humidity measurement of SF_6 insulated gas in electrical equipment:DL 506-2007[S].2007.
[21]SUEHIRO J Y,ZHOU G B,HARA M.Detection of partial discharge in SF_6 gas using a carbon nanotube-based gas sensor[J].Sensors and Actuators,2005,105(2):164-169.
[22]罗传胜,丁伍行,陈斌,等.SF_6气体综合在线监测技术应用综述[J].电网技术,2014,38(8):115-118.LUO Chuansheng,DING Wuxing,CHEN Bin,et al.An overview of the application of the on-line monitoring technics of SF_6[J].Power System Technology,2014,38(8):115-118.
[2]陆生贵,蔡声镇,苏伟,等.一种高稳定性的SF_6气体在线监测系统的设计与实现[J].福建师范大学学报(自然科学版),2008,24(5):53-56.LU Shenggui,CAI Shengzhen,SU Wei,et al.Design and implementa-tion of a high stable SF_6 gas on-line monitoring system[J].Journal of Fujian Normal University(Natural Science Edition),2008,24(5):53-56.
[3]汪金星,杨韧,郑小川.SF_6开关设备带电测试新技术在陕西电网的应用[J].陕西电力,2008,36(11):15-17.WANG Jinxing,YANG Ren,ZHENG Xiaochuan.Application of novel live test methods for SF_6 switch equipment to Shanxi Power Grid[J].Shaanxi Electric Power,2008,36(11):15-17.
[4]刘永,印华,姚强,等.气体分析技术在GIS故障定位和故障类型判断中的应用[J].高压电器,2009,45(3):132-134.LIU Yong,YIN Hua,YAO Qiang,et al.The appliction of gas analysis technology to fault location and fault diagnosis of GIS[J].High Voltage Appratus,2009,45(3):132-134.
[5]黄春.SF_6气体分析系统的研制[D].郑州:郑州大学,2006.HUANG Chun.Development of SF_6 gas analysis system[J].Zhengzhou:Zhengzhou University,2006.
[6]颜湘莲,王承玉,季严松,等.开关设备中SF_6气体分解产物测试技术[J].电网技术,2010,34(s2):1-6.YAN Xianglian,WANG Chengyu,JI Yansong,et al.Detect techniques for decomposition products of SF_6 in switchgears[J].Power System Technology,2010,34(s2):1-6.
[7]CHU F Y.SF_6 decomposition in gas insulated equipment[J].IEEE Transactions on Dielectrics and Electrical Insulation,1986,21(5):693-725.
[8]TOMINAGA S,KUWAHARA H,HIROOKA K,et al.SF_6gas analysis technique and its application for evaluation of internal conditions in SF_6 gas equipment[J].IEEE Transactions on Power Apparatus and Systems 1981,100(9):4196-4206.
[9]王春宁.SF_6气体综合在线监测装置[J].高压电器,2005,41(2):152-154.WANG Chunning.Comprehensive on-line monitoring device of SF_6 gas[J].High Voltage Apparatus,2005,41(2):152-154.
[10]李建基.SF_6在高压断路器和GIS不同放电下的分解物[J].华通技术,1992(3):58-64.LI Jianji.The decompositions of SF_6 in high voltage circuit breaker and GIS under different discharge[J].Hua Tong Technology,1992(3):58-64.
[11]刘可龙.SF_6气体在线监测技术的现状及发展趋势[J].通信电源技术,2013,30(6):83-85.LIU Kelong.SF_6 gas monitoring online technology status and development trend[J].Telecom Power Technology,2013,30(6):83-85.
[12]徐光跃,骆玲,文劲宇.基于嵌入式Linux的高压开关室SF_6气体在线监测系统[J].电工技术,2007(2):30-33.XU Guangyue,LUO Ling,WEN Jinyu.Online SF_6monitonring system for circuit breaker on embedded Linux[J].Electric Engineering,2007(2):30-33.
[13]电力设备预防性试验规程:DL/T 596-1996[S].1997.Preventive test code forelectric power equipment:DL/T596-1996[S].1997.
[14]师晓岩,查玮,孙福,等.UHV GIS内部温度场的红外热诊断技术[J].高电压技术,2007,33(6):16-20.SHI Xiaoyan,CHA Wei,SUN Fu,et al.Inner temperature distribution of UHV GIS using infrared thermo diagnosis technology[J].High Voltage Engineering,2007,33(6):16-20.
[15]陈衡,侯善敬.电力设备故障红外诊断[M].北京:中国电力出版社1999.CHEN Heng,HOU Shanjing.Infrared diagnosis of power equipment fault[M].Beijing:China Electric Power Press,1999.
[16]吴晓文,舒乃秋,李洪涛,等.基于光纤光栅的气体绝缘开关母线温度在线监测系统[J].电力自动化设备,2013,33(4):155-160.WU Xiaowen,SHU Naiqiu,LI Hongtao,et al.Online monitoring system of gas insulated switch busbar temperature based on fiber bragg grating[J].Electric Power Automation Equipment,2013,33(4):155-160.
[17]罗志,王杰.高压开关机械故障诊断平台开发[J].电网技术,2007,31(s1):134-136.LUO Zhi,WANG Jie.Development of mechanical fault analysis and diagnosis platform for HV circuit breaker[J].Power System Technology,2007,31(s1):134-136.
[18]六氟化硫电气设备中气体管理和检测导则:GB/T8905-2012[S].2012.The guide for management and measuring SF_6 gas in electrical equipment:GB/T 8905-2012[S].2012.
[19]Guidelines for the checking and treatment of sulfur hexafluoride(SF_6)taken from electrical equipment and specification for its reuse:IEC 60480-2004[S].2004.
[20]SF_6电气设备中绝缘气体湿度测量方法:DL 506-2007[S].2007.Method of humidity measurement of SF_6 insulated gas in electrical equipment:DL 506-2007[S].2007.
[21]SUEHIRO J Y,ZHOU G B,HARA M.Detection of partial discharge in SF_6 gas using a carbon nanotube-based gas sensor[J].Sensors and Actuators,2005,105(2):164-169.
[22]罗传胜,丁伍行,陈斌,等.SF_6气体综合在线监测技术应用综述[J].电网技术,2014,38(8):115-118.LUO Chuansheng,DING Wuxing,CHEN Bin,et al.An overview of the application of the on-line monitoring technics of SF_6[J].Power System Technology,2014,38(8):115-118.