交流GIS绝缘子表面亚毫米级金属颗粒的运动和局部放电特性
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摘要
气体绝缘开关设备(gasinsulatedswitchgear,GIS)绝缘子沿面闪络严重威胁供电安全,故障诱因通常归结为GIS绝缘子表面存在的金属颗粒。GIS内金属颗粒尺寸主要是亚毫米级,认识和了解GIS绝缘子表面亚毫米级金属颗粒的局部放电特性和运动特性是分析GIS绝缘子沿面闪络诱因无法回避的问题,但因为研究难度较大,一直以来GIS绝缘子表面亚毫米级金属颗粒的局部放电特性和运动特性尚不被掌握。为此,在前期研究的基础上,建立灵敏度可达0.02pC的综合局放测量系统和运动观测系统,观测获得了GIS绝缘子表面单个、2个、多个亚毫米级金属颗粒的运动特性和局部放电特性,采用有限元法和电磁场理论分析GIS绝缘子表面亚毫米级金属颗粒的运动机制和局部放电机制,并揭示了两者的关联关系,最后讨论特高频法现场检测技术对GIS绝缘子表面亚毫米级金属颗粒的检测失效问题。
The spacer flashover in gas insulated switchgear(GIS) is a serious threat to power supply safety. The cause of failure is usually attributed to the metal particles on the surface of the GIS spacer. The size of the metal particles in the GIS is mainly submillimeter. The partial discharge characteristics and motion characteristics of the particles are the problems that cannot be avoided by analyzing the flashover incentives of GIS spacers. However, due to the difficulty of research, the partial discharge characteristics and motion characteristics of submillimeter metal particles on the surface of GIS spacers have not been grasp. Therefore, based on the previous research,a comprehensive PD measurement system and motion observation system with sensitivity up to 0.02 pC were established. The motion characteristics and partial discharge characteristics of single, two and large number submillimeter metal particles on the surface of GIS spacer were obtained.Finite element method and electromagnetic field theory were used to analyze the motion mechanism and partial discharge mechanism of submillimeter metal particles on the surface of GIS spacers, and the relationship between the two was revealed.Finally, the failure problems of ultra-high frequency on-site detection technology on detecting submillimeter metal particles on the surface of spacers in GIS were discussed.
The spacer flashover in gas insulated switchgear(GIS) is a serious threat to power supply safety. The cause of failure is usually attributed to the metal particles on the surface of the GIS spacer. The size of the metal particles in the GIS is mainly submillimeter. The partial discharge characteristics and motion characteristics of the particles are the problems that cannot be avoided by analyzing the flashover incentives of GIS spacers. However, due to the difficulty of research, the partial discharge characteristics and motion characteristics of submillimeter metal particles on the surface of GIS spacers have not been grasp. Therefore, based on the previous research,a comprehensive PD measurement system and motion observation system with sensitivity up to 0.02 pC were established. The motion characteristics and partial discharge characteristics of single, two and large number submillimeter metal particles on the surface of GIS spacer were obtained.Finite element method and electromagnetic field theory were used to analyze the motion mechanism and partial discharge mechanism of submillimeter metal particles on the surface of GIS spacers, and the relationship between the two was revealed.Finally, the failure problems of ultra-high frequency on-site detection technology on detecting submillimeter metal particles on the surface of spacers in GIS were discussed.
引文
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[4]赵玉顺,张桦,崔宇豪,等.直流升压条件下频率选择超材料流注放电特性[J].电工技术学报,2018,33(20):4729-4738.Zhao Yushun,Zhang Hua,Cui Yuhao,et al.Analysis of streamer discharge characteristics of a frequency selective metamaterial under DC step-up condition[J].Transactions of China Electrotechnical Society,2018,33(20):4729-4738(in Chinese).
[5]赵明月,林涛,颜湘莲,等.基于氧同位素示踪法的电晕放电中H2O和O2对SF6分解气体形成的影响[J].电工技术学报,2018,33(20):4722-4728.Zhao Mingyue,Lin Tao,Yan Xianglian,et al.Influence of trace H2O and O2 on SF6 decomposition characteristics under corona discharge based on oxygen isotope tracer[J].Transactions of China Electrotechnical Society,2018,33(20):4722-4728(in Chinese).
[6]黄旭炜,倪潇茹,王健,等.苯硫醚聚酰亚胺电极覆膜材料合成及直流应力下对金属微粒运动特性的抑制作用[J].电工技术学报,2018,33(20):4712-4721.Huang Xuwei,Ni Xiaoru,Wang Jian,et al.Synthesis of phenyl-thioether polyimide as the electrode coating film and its suppression effect on motion behavior of the metal particles under DC stresses[J].Transactions of China Electrotechnical Society,2018,33(20):4712-4721(in Chinese).
[7]程显,徐晖,王瑞雪,等.等离子体复合薄膜沉积抑制金属微粒启举[J].电工技术学报,2018,33(20):4672-4681.Cheng Xian,Xu Hui,Wang Ruixue,et al.Composite thin film deposited by plasma to inhibit the lifting of metal particles[J].Transactions of China Electrotechnical Society,2018,33(20):4672-4681(in Chinese).
[8]王涵,薛建议,陈俊鸿,等.SF6/N2混合气体中金属微粒对GIL盆式绝缘子表面电荷积聚特性的影响[J].电工技术学报,2018,33(20):4663-4671.Wang Han,Xue Jianyi,Chen Junhong,et al.Influence of metal particles on surface charge accumulation characteristics of GIL spacer in SF6/N2 mixture[J].Transactions of China Electrotechnical Society,2018,33(20):4663-4671(in Chinese).
[9]王珏,徐蓉,严萍.环氧复合绝缘材料表面处理方法对高气压下闪络特性的影响[J].电工技术学报,2018,33(20):4704-4711.Wang Jue,Xu Rong,Yan Ping.Effect of surface treatment methods of epoxy composite insulation on flashover characteristics under high pressure[J].Transactions of China Electrotechnical Society,2018,33(20):4704-4711(in Chinese).
[10]王靖瑞,王健,倪潇茹,等.直流电场下C4F7N/CO2与SF6/N2混合气体中铝质球形自由微粒放电敏感度对比分析[J].电工技术学报,2018,33(20):4682-4691.Wang Jingrui,Wang Jian,Ni Xiaoru,et al.Comparative analysis of discharge sensitivity by the free spherical aluminum particle in C4F7N/CO2 and SF6/N2 gas mixtures under DC electric field[J].Transactions of China Electrotechnical Society,2018,33(20):4682-4691(in Chinese).
[11]季洪鑫,李成榕,庞志开,等.GIS中自由运动片状颗粒的局部放电特征[J].中国电机工程学报,2017,37(24):7367-7376.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Partial discharge characteristics of sheet free-movement particle in GIS[J].Proceedings of the CSEE,2017,37(24):7367-7376(in Chinese).
[12]季洪鑫,李成榕,庞志开,等.GIS中线形颗粒起举电压的影响因素[J].中国电机工程学报,2017,37(1):301-313.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Influence factors of the lifting voltage of linear particle in GIS[J].Proceedings of the CSEE,2017,37(1):301-313(in Chinese).
[13]季洪鑫,李成榕,庞志开,等.电压波形对GIS自由金属颗粒放电特性的影响[J].电工技术学报,2016,31(13):218-226.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Influence of voltage waveforms on partial discharge characteristics of GIS mobilized metal particles[J].Transactions of China Electrotechnical Society,2016,31(13):218-226(in Chinese).
[14]Budiman F N,Khan Y,Al-Arainy A A,et al.Estimation of particle initiated PD inception voltage around spacer in GIS[C]//Proceedings of the 4th International Conference on Power Engineering,Energy and Electrical Drives.Istanbul,Turkey:IEEE,2013:517-521.
[15]Xu Yang,Cheng Jiangrong,Liu Weidong,et al.Evaluation of the UHF method based on the investigation of a partial discharge case in post insulators[J].IEEE Transactions on Dielectrics and Electrical Insulation,2017,24(6):3669-3676.
[16]齐波,李成榕,郝震,等.GIS绝缘子表面固定金属颗粒沿面局部放电发展的现象及特征[J].中国电机工程学报,2011,31(1):101-108.Qi Bo,Li Chengrong,Hao Zhen,et al.Evolution phenomena and features of surface partial discharge initiated by immobilized metal particles on GIS insulators[J].Proceedings of the CSEE,2011,31(1):101-108(in Chinese).
[17]李岩松,李世延,仇仔来,等.GIS绝缘子表面固定金属颗粒放电特性研究[J].电测与仪表,2014,51(15):33-36.Li Yansong,Li Shiyan,Qiu Zilai,et al.Study on discharge characteristics of fixed metal particles on GIS insulator surface[J].Electrical Measurement&Instrumentation,2014,51(15):33-36(in Chinese).
[18]高有华,王彩云,刘晓明,等.盆式绝缘子存在自由金属颗粒时的电场分析及其对沿面闪络的影响[J].电工电能新技术,2015,34(8):56-61.Gao Youhua,Wang Caiyun,Liu Xiaoming,et al.Analysis of electric field of basin-type insulator existing metal particles and its influence on surface flashover[J].Advanced Technology of Electrical Engineering and Energy,2015,34(8):56-61(in Chinese).
[19]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(in Chinese).
[20]国家电网公司生产技术部.电网设备状态检测技术应用典型案例[M].北京:中国电力出版社,2012.State Grid Corporation Operation and Maintenance Department.Grid equipment condition detection technology application case[M].Beijing:China Electric Power Press,2012(in Chinese).
[21]徐洋,刘卫东,许渊,等.GIS绝缘件局部放电脉冲电流互参考试验测量方法[J].高压电器,2018,54(5):87-90,100.Xu Yang,Liu Weidong,Xu Yuan,et al.PD test and measurement method of GIS insulators based on cross-reference of the pulse current[J].High Voltage Apparatus,2018,54(5):87-90,100(in Chinese).
[22]黎斌.SF6高压电器设计[M].3版.北京:机械工业出版社,2010:57.Li Bin.SF6 high voltage electrical appliance design[M].3rd ed.Beijing:Mechanical Industry Press,2010:57(in Chinese).
[23]刘少辉.GIS局放脉冲电流和UHF信号的联合定位[J].高压电器,2015,51(12):126-129,135.Liu Shaohui.Combined location of pulse current and UHFsignal in GIS[J].High Voltage Apparatus,2015,51(12):126-129,135(in Chinese).
[24]张广东,秦睿,张忠元,等.基于超高频特高频法的GIS局部放电特征图谱提取与研究[J].高压电器,2016,52(9):71-77.Zhang Guangdong,Qin Rui,Zhang Zhongyuan,et al.Extraction and analysis of characteristic spectrum of partial discharge in GIS based on UHF method[J].High Voltage Apparatus,2016,52(9):71-77(in Chinese).
[25]李宾宾.一起GIS局放在线监测装置误报警事件的分析及处理[J].安徽电力,2017,34(1):4-8.Li Binbin.Analysis and treatment of a false alarm event occurred on GIS partial discharge monitoring system[J].Anhui Electric Power,2017,34(1):4-8(in Chinese).
[2]Jeong D H,Kwon K R,Seo K B,et al.Dielectric strength and insulating property on surface of spacer for particle contamination under dry air gas[C]//Proceedings of 20132nd International Conference on Electric Power Equipment-Switching Technology.Matsue,Japan:IEEE,2013:1-4.
[3]傅智为,林一泓,吴勇昊,等.特高压1100 kV GIS现场交流耐压试验技术[J].电力系统保护与控制,2018,46(3):158-163.Fu Zhiwei,Lin Yihong,Wu Yonghao,et al.Test technology of on site AC voltage test of UHV 1100 kVGIS[J].Power System Protection and Control,2018,46(3):158-163(in Chinese).
[4]赵玉顺,张桦,崔宇豪,等.直流升压条件下频率选择超材料流注放电特性[J].电工技术学报,2018,33(20):4729-4738.Zhao Yushun,Zhang Hua,Cui Yuhao,et al.Analysis of streamer discharge characteristics of a frequency selective metamaterial under DC step-up condition[J].Transactions of China Electrotechnical Society,2018,33(20):4729-4738(in Chinese).
[5]赵明月,林涛,颜湘莲,等.基于氧同位素示踪法的电晕放电中H2O和O2对SF6分解气体形成的影响[J].电工技术学报,2018,33(20):4722-4728.Zhao Mingyue,Lin Tao,Yan Xianglian,et al.Influence of trace H2O and O2 on SF6 decomposition characteristics under corona discharge based on oxygen isotope tracer[J].Transactions of China Electrotechnical Society,2018,33(20):4722-4728(in Chinese).
[6]黄旭炜,倪潇茹,王健,等.苯硫醚聚酰亚胺电极覆膜材料合成及直流应力下对金属微粒运动特性的抑制作用[J].电工技术学报,2018,33(20):4712-4721.Huang Xuwei,Ni Xiaoru,Wang Jian,et al.Synthesis of phenyl-thioether polyimide as the electrode coating film and its suppression effect on motion behavior of the metal particles under DC stresses[J].Transactions of China Electrotechnical Society,2018,33(20):4712-4721(in Chinese).
[7]程显,徐晖,王瑞雪,等.等离子体复合薄膜沉积抑制金属微粒启举[J].电工技术学报,2018,33(20):4672-4681.Cheng Xian,Xu Hui,Wang Ruixue,et al.Composite thin film deposited by plasma to inhibit the lifting of metal particles[J].Transactions of China Electrotechnical Society,2018,33(20):4672-4681(in Chinese).
[8]王涵,薛建议,陈俊鸿,等.SF6/N2混合气体中金属微粒对GIL盆式绝缘子表面电荷积聚特性的影响[J].电工技术学报,2018,33(20):4663-4671.Wang Han,Xue Jianyi,Chen Junhong,et al.Influence of metal particles on surface charge accumulation characteristics of GIL spacer in SF6/N2 mixture[J].Transactions of China Electrotechnical Society,2018,33(20):4663-4671(in Chinese).
[9]王珏,徐蓉,严萍.环氧复合绝缘材料表面处理方法对高气压下闪络特性的影响[J].电工技术学报,2018,33(20):4704-4711.Wang Jue,Xu Rong,Yan Ping.Effect of surface treatment methods of epoxy composite insulation on flashover characteristics under high pressure[J].Transactions of China Electrotechnical Society,2018,33(20):4704-4711(in Chinese).
[10]王靖瑞,王健,倪潇茹,等.直流电场下C4F7N/CO2与SF6/N2混合气体中铝质球形自由微粒放电敏感度对比分析[J].电工技术学报,2018,33(20):4682-4691.Wang Jingrui,Wang Jian,Ni Xiaoru,et al.Comparative analysis of discharge sensitivity by the free spherical aluminum particle in C4F7N/CO2 and SF6/N2 gas mixtures under DC electric field[J].Transactions of China Electrotechnical Society,2018,33(20):4682-4691(in Chinese).
[11]季洪鑫,李成榕,庞志开,等.GIS中自由运动片状颗粒的局部放电特征[J].中国电机工程学报,2017,37(24):7367-7376.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Partial discharge characteristics of sheet free-movement particle in GIS[J].Proceedings of the CSEE,2017,37(24):7367-7376(in Chinese).
[12]季洪鑫,李成榕,庞志开,等.GIS中线形颗粒起举电压的影响因素[J].中国电机工程学报,2017,37(1):301-313.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Influence factors of the lifting voltage of linear particle in GIS[J].Proceedings of the CSEE,2017,37(1):301-313(in Chinese).
[13]季洪鑫,李成榕,庞志开,等.电压波形对GIS自由金属颗粒放电特性的影响[J].电工技术学报,2016,31(13):218-226.Ji Hongxin,Li Chengrong,Pang Zhikai,et al.Influence of voltage waveforms on partial discharge characteristics of GIS mobilized metal particles[J].Transactions of China Electrotechnical Society,2016,31(13):218-226(in Chinese).
[14]Budiman F N,Khan Y,Al-Arainy A A,et al.Estimation of particle initiated PD inception voltage around spacer in GIS[C]//Proceedings of the 4th International Conference on Power Engineering,Energy and Electrical Drives.Istanbul,Turkey:IEEE,2013:517-521.
[15]Xu Yang,Cheng Jiangrong,Liu Weidong,et al.Evaluation of the UHF method based on the investigation of a partial discharge case in post insulators[J].IEEE Transactions on Dielectrics and Electrical Insulation,2017,24(6):3669-3676.
[16]齐波,李成榕,郝震,等.GIS绝缘子表面固定金属颗粒沿面局部放电发展的现象及特征[J].中国电机工程学报,2011,31(1):101-108.Qi Bo,Li Chengrong,Hao Zhen,et al.Evolution phenomena and features of surface partial discharge initiated by immobilized metal particles on GIS insulators[J].Proceedings of the CSEE,2011,31(1):101-108(in Chinese).
[17]李岩松,李世延,仇仔来,等.GIS绝缘子表面固定金属颗粒放电特性研究[J].电测与仪表,2014,51(15):33-36.Li Yansong,Li Shiyan,Qiu Zilai,et al.Study on discharge characteristics of fixed metal particles on GIS insulator surface[J].Electrical Measurement&Instrumentation,2014,51(15):33-36(in Chinese).
[18]高有华,王彩云,刘晓明,等.盆式绝缘子存在自由金属颗粒时的电场分析及其对沿面闪络的影响[J].电工电能新技术,2015,34(8):56-61.Gao Youhua,Wang Caiyun,Liu Xiaoming,et al.Analysis of electric field of basin-type insulator existing metal particles and its influence on surface flashover[J].Advanced Technology of Electrical Engineering and Energy,2015,34(8):56-61(in Chinese).
[19]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(in Chinese).
[20]国家电网公司生产技术部.电网设备状态检测技术应用典型案例[M].北京:中国电力出版社,2012.State Grid Corporation Operation and Maintenance Department.Grid equipment condition detection technology application case[M].Beijing:China Electric Power Press,2012(in Chinese).
[21]徐洋,刘卫东,许渊,等.GIS绝缘件局部放电脉冲电流互参考试验测量方法[J].高压电器,2018,54(5):87-90,100.Xu Yang,Liu Weidong,Xu Yuan,et al.PD test and measurement method of GIS insulators based on cross-reference of the pulse current[J].High Voltage Apparatus,2018,54(5):87-90,100(in Chinese).
[22]黎斌.SF6高压电器设计[M].3版.北京:机械工业出版社,2010:57.Li Bin.SF6 high voltage electrical appliance design[M].3rd ed.Beijing:Mechanical Industry Press,2010:57(in Chinese).
[23]刘少辉.GIS局放脉冲电流和UHF信号的联合定位[J].高压电器,2015,51(12):126-129,135.Liu Shaohui.Combined location of pulse current and UHFsignal in GIS[J].High Voltage Apparatus,2015,51(12):126-129,135(in Chinese).
[24]张广东,秦睿,张忠元,等.基于超高频特高频法的GIS局部放电特征图谱提取与研究[J].高压电器,2016,52(9):71-77.Zhang Guangdong,Qin Rui,Zhang Zhongyuan,et al.Extraction and analysis of characteristic spectrum of partial discharge in GIS based on UHF method[J].High Voltage Apparatus,2016,52(9):71-77(in Chinese).
[25]李宾宾.一起GIS局放在线监测装置误报警事件的分析及处理[J].安徽电力,2017,34(1):4-8.Li Binbin.Analysis and treatment of a false alarm event occurred on GIS partial discharge monitoring system[J].Anhui Electric Power,2017,34(1):4-8(in Chinese).
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