基于法兰式光纤传感技术的高压组合电器HF气体在线检测
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摘要
SF6气体具有优异的绝缘和灭弧性能,因而广泛应用于高压气体绝缘组合电器(GIS)的生产和使用中,但GIS设备运行状态下的放电和过热故障将导致SF6气体分解生成氟化氢(HF)等多种典型特征气体,因此通过检测高压GIS中HF气体体积分数可有效判断其运行状态。通过提出一种基于可调谐半导体激光吸收光谱检测(TDLAS)和法兰式光纤传感技术的高压组合电器HF气体在线检测方法,即将法兰式光纤传感结构固定安装在GIS管道中,实现了HF气体浓度高精度在线监测。实验数据表明,法兰式光纤传感在线监测装置能够实现对HF气体的有效测量。研究结果表明:盆式绝缘子表面最大场强为11.85kV/mm,低于SF6气体绝缘条件下20kV/mm的场强控制要求,因此盆式绝缘子附近电场不影响光纤传感器运行;在1m光程情况下,HF气体体积分数检出限可达5×10–5以下。研究结果可为高压组合电器SF6气体分解产物在线检测提供一种较为新颖的方案,从而实现对高压GIS内部HF气体的实时在线检测。
Possessing the excellent insulation and arc extinguishing properties, SF6 gas is widely used in the production and operation of the high voltage gas insulator switch-gear(GIS). However, the discharge and overheating faults of GIS equipment will lead to the decomposition of SF6 gas into hydrogen fluoride(HF) and other typical gases. Therefore, detecting the concentration of HF gas in high voltage GIS can effectively judge its operation status. We propose an on-line detection method for HF gas in high voltage combined electrical apparatus based on the tunable diode laser absorption spectroscopy(TDLAS) detection and the flange optical fiber sensing technology. The flange optical fiber sensing structure is fixed in GIS, which can realize high-precision on-line monitoring of HF gas. The experimental results show that the flange fiber optic sensor monitoring device can realize the effective measurement of HF gas. The research results show that the maximum field intensity on the surface of basin insulator is 11.85kV/mm, which is lower than the control field strength of 20kV/mm under the SF6 gas insulation condition. Therefore, the E-field near the basin insulator does not affect the operation of optical fiber sensor. In the case of 1 m light path, the detection limit of HF gas is less than 5×10–5. The results of this study can provide a new scheme for the on-line monitoring of high pressure SF6 gas decomposition products, which can realize on-line monitoring of the internal gas of the high voltage GIS equipment.
Possessing the excellent insulation and arc extinguishing properties, SF6 gas is widely used in the production and operation of the high voltage gas insulator switch-gear(GIS). However, the discharge and overheating faults of GIS equipment will lead to the decomposition of SF6 gas into hydrogen fluoride(HF) and other typical gases. Therefore, detecting the concentration of HF gas in high voltage GIS can effectively judge its operation status. We propose an on-line detection method for HF gas in high voltage combined electrical apparatus based on the tunable diode laser absorption spectroscopy(TDLAS) detection and the flange optical fiber sensing technology. The flange optical fiber sensing structure is fixed in GIS, which can realize high-precision on-line monitoring of HF gas. The experimental results show that the flange fiber optic sensor monitoring device can realize the effective measurement of HF gas. The research results show that the maximum field intensity on the surface of basin insulator is 11.85kV/mm, which is lower than the control field strength of 20kV/mm under the SF6 gas insulation condition. Therefore, the E-field near the basin insulator does not affect the operation of optical fiber sensor. In the case of 1 m light path, the detection limit of HF gas is less than 5×10–5. The results of this study can provide a new scheme for the on-line monitoring of high pressure SF6 gas decomposition products, which can realize on-line monitoring of the internal gas of the high voltage GIS equipment.
引文
[1]谢恒堃.电气绝缘结构设计原理:下册[M].北京:机械工业出版社,1992.XIE Hengkun.Electrical insulation design principles:volume 2[M].Beijing,China:Mechanical Industry Press,1992.
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[3]HOSOKAWA M,OKUMURA K,YAMAGIWA T,et al.Dielectric performance of improved gas insulated bushing for UHV GIS[J].IEEETransactions on Power Delivery,1987,2(2):359-366.
[4]周红,肖淞,张晓星,等.基于紫外差分吸收光谱的痕量SO2气体定量检测[J].中国电机工程学报,2017,37(19):5812-5820.ZHOU Hong,XIAO Song,ZHANG Xiaoxing,et al.Quantum detection of trace sulfur dioxide based on ultraviolet differential optical absorption spectrometry[J].Proceedings of the CSEE,2017,37(19):5812-5820.
[5]唐念,乔胜亚,李丽,等.HF和H2S作为气体绝缘组合电器绝缘缺陷诊断特征气体的有效性[J].电工技术学报,2017,32(19):202-211.TANG Nian,QIAO Shengya,LI Li,et al.Validity of HF and H2S as target gases of insulation monitoring in gas insulated switchgear[J].Proceedings of the CSEE,2017,32(19):202-211.
[6]贾勇勇,邓敏,李玉杰,等.基于深度残差网络的GIS局部放电模式识别技术研究[J].高压电器,2018,54(11):123-129.JIA Yongyong,DENG Min,LI Yujie,et al.Research on GIS partial discharge pattern recognition based on deep residual network[J].High Voltage Apparatus,2018,54(11):123-129.
[7]何莹,张玉钧,尤坤,等.基于激光技术结合温度修正的高温HF气体检测方法研究[J].光谱学与光谱分析,2017,37(3):964-970.HE Ying,ZHANG Yujun,YOU Kun,et al.Study on hydrogen fluoride at high temperature detection method with temperature correction based on laser technology[J].Spectroscopy and Spectral Analysis,2017,37(3):964-970.
[8]陈书旺,孙涛,唐东林.基于谐波检测的硫化氢气体传感器研究[J].传感技术学报,2017,30(1):31-34.CHEN Shuwang,SUN Tao,TANG Donglin.Research on hydrogen sulfide sensor based on harmonic detection[J].Chinese Journal of Sensors and Actuators,2017,30(1):31-34.
[9]丁武文,孙利群,衣路英.基于可调谐半导体激光器吸收光谱的高灵敏度甲烷浓度遥测技术[J].物理学报,2017,66(10):1-9.DING Wuwen,SUN Liqun,YI Luying.High sensitive scheme for methane remote sensor based on tunable diode laser absorption spectroscopy[J].Acta Physica Sinica,2017,66(10):1-9.
[10]周文俊,乔胜亚,郑宇,等.基于特征气体COS和CS2的GIS内环氧树脂固体介质绝缘状态监测[J].高电压技术,2017,43(8):2551-2557.ZHOU Wenjun,QIAO Shengya,ZHENG Yu,et al.Insulation condition monitoring of epoxy resins solid dielectric in GIS using characteristic gases COS and CS2[J].High Voltage Engineering,2017,43(8):2551-2557.
[11]信丰鑫,郭金家,孙加运,等.基于可调谐半导体激光吸收光谱技术对开放式长光程大气CO2的测量[J].大气与环境光学学报,2017,12(4):269-275.XIN Fengxin,GUO Jinjia,SUN Jiayun,et al.Measurement of open-path atmospheric CO2 based on tunable diode laser absorption spectroscopy[J].Journal of Atmospheric and Environmental Optics,2017,12(4):269-275.
[12]张施令.220kV SF6气体绝缘GIS真型试验平台设计与研制[J].水电能源科学,2018,36(5):171-174.ZHANG Shiling.Design and development of 220kV SF6 insulated GIS actual test platform[J].Water Resources and Power,2018,36(5):171-174.
[13]沙彦超,蔡巍,李大卫,等.气体绝缘开关内部固体绝缘件缺陷产气特性[J].高电压技术,2017,43(1):256-265.SHA Yanchao,CAI Wei,LI Dawei,et al.Gas generation characteristics for solid insulation defects in the gas insulated switchgear[J].High Voltage Engineering,2017,43(1):256-265.
[14]徐建源,汪枫,肖凤良.三相共箱GIS盆式绝缘子三维电场的计算分析[J].高电压技术,2000,26(1):11-13.XU Jianyuan,WANG Feng,XIAO Fengliang.Three dimensional electric field calculation of the disk type insulator inside of three phase in one tank type of GIS[J].High Voltage Engineering,2000,26(1):11-13.
[15]李武峰,李鹏,李金忠,等.SF6气体中氧化铝掺杂环氧树脂直流沿面闪络中的冲孔效应[J].高电压技术,2017,43(8):2754-2759.LI Wufeng,LI Peng,LI Jinzhong,et al.Wormholes effects in DCflashover process of alumina filled epoxy resin surfaces in SF6[J].High Voltage Engineering,2017,43(8):2754-2759.
[16]颜湘莲,王承玉,季严松,等.气体绝缘设备中SF6气体分解产物与设备故障关系的建模[J].电工技术学报,2015,30(22):231-238.YAN Xianglian,WANG Chengyu,JI Yansong,et al.Modeling of the relation between SF6 decomposition products and interior faults in gas insulated equipment[J].Transactions of China Electrotechnical Society,2015,30(22):231-238.
[17]王凤智,淡炳雄,傅正财.SF6高压设备电场均匀程度与绝缘水平的统计学分析[J].高压电器,2017,53(10):50-55.WANG Fengzhi,DAN Bingxiong,FU Zhengcai.Statistics analysis of electric field and insulation level of SF6 high voltage equipment[J].High Voltage Apparatus,2017,53(10):50-55.
[18]汲胜昌,高璐,钟理鹏,等.涉及绝缘材料的悬浮电位缺陷下的SF6分解特性[J].高电压技术,2018,44(1):201-209.JI Shengchang,GAO Lu,ZHOU Lipeng,et al.Decomposition characteristics of SF6 under floating potential defects relating to insulation materials[J].High Voltage Engineering,2018,44(1):201-209.
[2]TOSHIAKI R,TATSURO K,MAKOTO H,et al.Development of insulation technology in compact SF6 gas-filled bushings:development of compact 800 k V SF6 gas-filled bushings[J].Electrical Engineering in Japan,2010,171(1):19-27.
[3]HOSOKAWA M,OKUMURA K,YAMAGIWA T,et al.Dielectric performance of improved gas insulated bushing for UHV GIS[J].IEEETransactions on Power Delivery,1987,2(2):359-366.
[4]周红,肖淞,张晓星,等.基于紫外差分吸收光谱的痕量SO2气体定量检测[J].中国电机工程学报,2017,37(19):5812-5820.ZHOU Hong,XIAO Song,ZHANG Xiaoxing,et al.Quantum detection of trace sulfur dioxide based on ultraviolet differential optical absorption spectrometry[J].Proceedings of the CSEE,2017,37(19):5812-5820.
[5]唐念,乔胜亚,李丽,等.HF和H2S作为气体绝缘组合电器绝缘缺陷诊断特征气体的有效性[J].电工技术学报,2017,32(19):202-211.TANG Nian,QIAO Shengya,LI Li,et al.Validity of HF and H2S as target gases of insulation monitoring in gas insulated switchgear[J].Proceedings of the CSEE,2017,32(19):202-211.
[6]贾勇勇,邓敏,李玉杰,等.基于深度残差网络的GIS局部放电模式识别技术研究[J].高压电器,2018,54(11):123-129.JIA Yongyong,DENG Min,LI Yujie,et al.Research on GIS partial discharge pattern recognition based on deep residual network[J].High Voltage Apparatus,2018,54(11):123-129.
[7]何莹,张玉钧,尤坤,等.基于激光技术结合温度修正的高温HF气体检测方法研究[J].光谱学与光谱分析,2017,37(3):964-970.HE Ying,ZHANG Yujun,YOU Kun,et al.Study on hydrogen fluoride at high temperature detection method with temperature correction based on laser technology[J].Spectroscopy and Spectral Analysis,2017,37(3):964-970.
[8]陈书旺,孙涛,唐东林.基于谐波检测的硫化氢气体传感器研究[J].传感技术学报,2017,30(1):31-34.CHEN Shuwang,SUN Tao,TANG Donglin.Research on hydrogen sulfide sensor based on harmonic detection[J].Chinese Journal of Sensors and Actuators,2017,30(1):31-34.
[9]丁武文,孙利群,衣路英.基于可调谐半导体激光器吸收光谱的高灵敏度甲烷浓度遥测技术[J].物理学报,2017,66(10):1-9.DING Wuwen,SUN Liqun,YI Luying.High sensitive scheme for methane remote sensor based on tunable diode laser absorption spectroscopy[J].Acta Physica Sinica,2017,66(10):1-9.
[10]周文俊,乔胜亚,郑宇,等.基于特征气体COS和CS2的GIS内环氧树脂固体介质绝缘状态监测[J].高电压技术,2017,43(8):2551-2557.ZHOU Wenjun,QIAO Shengya,ZHENG Yu,et al.Insulation condition monitoring of epoxy resins solid dielectric in GIS using characteristic gases COS and CS2[J].High Voltage Engineering,2017,43(8):2551-2557.
[11]信丰鑫,郭金家,孙加运,等.基于可调谐半导体激光吸收光谱技术对开放式长光程大气CO2的测量[J].大气与环境光学学报,2017,12(4):269-275.XIN Fengxin,GUO Jinjia,SUN Jiayun,et al.Measurement of open-path atmospheric CO2 based on tunable diode laser absorption spectroscopy[J].Journal of Atmospheric and Environmental Optics,2017,12(4):269-275.
[12]张施令.220kV SF6气体绝缘GIS真型试验平台设计与研制[J].水电能源科学,2018,36(5):171-174.ZHANG Shiling.Design and development of 220kV SF6 insulated GIS actual test platform[J].Water Resources and Power,2018,36(5):171-174.
[13]沙彦超,蔡巍,李大卫,等.气体绝缘开关内部固体绝缘件缺陷产气特性[J].高电压技术,2017,43(1):256-265.SHA Yanchao,CAI Wei,LI Dawei,et al.Gas generation characteristics for solid insulation defects in the gas insulated switchgear[J].High Voltage Engineering,2017,43(1):256-265.
[14]徐建源,汪枫,肖凤良.三相共箱GIS盆式绝缘子三维电场的计算分析[J].高电压技术,2000,26(1):11-13.XU Jianyuan,WANG Feng,XIAO Fengliang.Three dimensional electric field calculation of the disk type insulator inside of three phase in one tank type of GIS[J].High Voltage Engineering,2000,26(1):11-13.
[15]李武峰,李鹏,李金忠,等.SF6气体中氧化铝掺杂环氧树脂直流沿面闪络中的冲孔效应[J].高电压技术,2017,43(8):2754-2759.LI Wufeng,LI Peng,LI Jinzhong,et al.Wormholes effects in DCflashover process of alumina filled epoxy resin surfaces in SF6[J].High Voltage Engineering,2017,43(8):2754-2759.
[16]颜湘莲,王承玉,季严松,等.气体绝缘设备中SF6气体分解产物与设备故障关系的建模[J].电工技术学报,2015,30(22):231-238.YAN Xianglian,WANG Chengyu,JI Yansong,et al.Modeling of the relation between SF6 decomposition products and interior faults in gas insulated equipment[J].Transactions of China Electrotechnical Society,2015,30(22):231-238.
[17]王凤智,淡炳雄,傅正财.SF6高压设备电场均匀程度与绝缘水平的统计学分析[J].高压电器,2017,53(10):50-55.WANG Fengzhi,DAN Bingxiong,FU Zhengcai.Statistics analysis of electric field and insulation level of SF6 high voltage equipment[J].High Voltage Apparatus,2017,53(10):50-55.
[18]汲胜昌,高璐,钟理鹏,等.涉及绝缘材料的悬浮电位缺陷下的SF6分解特性[J].高电压技术,2018,44(1):201-209.JI Shengchang,GAO Lu,ZHOU Lipeng,et al.Decomposition characteristics of SF6 under floating potential defects relating to insulation materials[J].High Voltage Engineering,2018,44(1):201-209.
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