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

doi:10.19595/j.cnki.1000-6753.tces.L80833

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Abstract

The electrical performance of DC gas insulation transmission line (GIL) using SF₆ gas mixture or alternative gas as insulation medium will be deteriorated by free metal particles. The analysis of the factor affecting the insulation strength of SF₆/N₂ and C₄F₇N/CO₂ gas mixtures is mainly performed in this paper. The breakdown experiments with particle were conducted with the ball-bowl electrode under the DC electric field, which included different gas compositions such as C₄F₇N/CO₂ (4%/96%) gas mixture, SF₆/N₂ (volume ratio of SF₆ includes: 20%, 30%, 50%, and 70%, respectively) gas mixtures and pure SF₆ gas. The concept of Discharge Sensitivity by Particles (DSP) was proposed to evaluate the sensitivity of the insulation strength of different compositions gas to the electric field distortion caused by metal particles. The experiment results show that in the pressure range of 0.1 to 0.5MPa, the dielectric strength of 4%C₄F₇N/96%CO₂ is equivalent to that of 30%SF₆/70%N₂ in the absence of particle, while due to the presence of particles, the DSP of 4%C₄F₇N/96%CO₂ gas mixture is higher than that of 20%SF₆/80%N₂ gas mixture and lower than that of 30%SF₆/70%N₂ gas mixture, accompanied by the appearance of discharge current of double peak. The high dielectric strength and low sensitivity to particle discharge of C₄F₇N/CO₂ gas mixture is closely related to the strong electronegativity and high attachment coefficient of C₄F₇N. Combined with the physical model of moving particle-triggered discharge, the emergence of the double peak characteristics of gap breakdown current is also elaborated in this paper.

Key words： Breakdown voltage free spherical conducting particle gas mixture discharge sensitivity by particles (DSP) breakdown current

Received: 30 May 2018 Published: 30 October 2018

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	Wang Jingrui
	Wang Jian
	Ni Xiaoru
	Wang Cong
	Li Qingmin

Cite this article:

Wang Jingrui,Wang Jian,Ni Xiaoru等. 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.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80833 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I20/4682

[1] Christophorou L G, Olthoff J K, Brunt R J V. Sulfur hexafluoride and the electric power industry[J]. IEEE Electrical Insulation Magazine, 1997, 13(5): 20-24.
[2] 齐波, 张贵新, 李成榕, 等. 气体绝缘金属封闭输电线路的研究现状及应用前景[J]. 高电压技术, 2015, 41(5): 1466-1473.Qi Bo, Zhang Guixin, Li Chengrong, et al. Research status and prospect of gas-insulated metal enclosed transmission line[J]. High Voltage Engineering, 2015, 41(5): 1466-1473.
[3] 张晓星, 田双双, 肖淞, 等. SF₆替代气体研究现状综述[J]. 电工技术学报, 2018, 33(12): 2883-2893.Zhang Xiaoxing, Tian Shuangshuang, Xiao Song, et al. A review study of SF₆ substitute gases[J]. Transactions of China Electrotechnical Society, 2018, 33(12): 2883-2893.
[4] 李鑫涛, 林莘, 徐建源, 等. SF₆/N₂混合气体电击穿特性仿真及实验[J]. 电工技术学报, 2017, 32(20): 42-52.Li Xintao, Lin Xin, Xu Jianyuan, et al. Simulations and experiments of dielectric breakdown characteri- stics in SF₆/N₂ gas mixtures[J]. Transactions of China Electrotechnical Society, 2017, 32(20): 42-52.
[5] 邓云坤, 马仪, 赵谡, 等. 基于电子输运参数的CF₃I及CF₃I-N₂混合气体绝缘性能分析[J]. 电工技术学报, 2018, 33(7): 1641-1651.Deng Yunkun, Ma Yi, Zhao Su, et al. Analysis of the insulation properties of CF₃I and CF₃I-N₂ gas mixtures from electron transport parameters[J]. Transactions of China Electrotechnical Society, 2018, 33(7): 1641-1651.
[6] 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.
[7] Chen L, Widger P, Kamarudin M S, et al.CF₃I gas mixtures: breakdown characteristics and potential for electrical insulation[J]. IEEE Transactions on Power Delivery, 2017, 32(2): 1089-1097.
[8] Zhao H, Li X, Lin H.Insulation characteristics of c-C₄F₈/N₂ and CF₃I/N₂ mixtures as possible sub- stitutes for SF₆[J]. IEEE Transactions on Power Delivery, 2017, 32(1): 254-262.
[9] 肖淞, 张晓星, 韩晔飞, 等. 不均匀电场下CF₃I/N₂混合气体工频击穿特性实验[J]. 电工技术学报, 2016, 31(20): 228-236.Xiao Song, Zhang Xiaoxing, Han Yefei, et al. Experiment on power frequency puncture of CF₃I/N₂ gas mixtures in non-uniform electric fields[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 228-236.
[10] Qiu Y, Kuffel E.Dielectricc strength of gas mixtures comprising SF₆/CO₂/c-C₄F₈ and SF₆/N₂/c-C₄F₈[J]. IEEE Transactions on Power Apparatus and Systems, 1983, 102(5): 1445-1451.
[11] Kieffel Y, Biquez F.SF₆ alternative development for high voltage switchgears[C]//33rd IEEE Electrical Insulation Conference, Seattle, 2015: 379-383.
[12] Kieffel Y, Biquez F, Vigouroux D, et al.Characteri- stics of g³-an alternative to SF₆[J]. CIRED-Open Access Proceedings Journal, 2017(1): 54-57.
[13] Wang C L, Wu Y, Sun H, et al.Thermophysical properties calculation of C₄F₇N/CO₂ mixture based on computational chemistry—a theoretical study of SF₆ alternative[C]//4th International Conference on Electric Power Equipment, Xi’an, 2017: 255-258.
[14] Nechmi H E, Beroual A, Girodet A, et al.Effective ionization coefficients and limiting field strength of fluoronitriles-CO₂ mixtures[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2017, 24(2): 886-892.
[15] Nechmi H E, Beroual A, Girodet A, et al.Fluoroni- triles/CO₂ gas mixture as promising substitute to SF₆ for insulation in high voltage applications[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(5): 2587-2593.
[16] Nechmi H E, Beroual A, Girodet A, et al.Fluoronitriles/CO₂ gas mixture as an eco-friendly alternative candidate to SF₆ in high voltage insulation systems[C]//2016 IEEE Conference on Insulation and Dielectric Phenomena, Toronto, 2016: 384-387.
[17] 张乔根, 游浩洋, 马径坦, 等. 直流电压下SF₆中自由线形导电微粒运动特性[J]. 高电压技术, 2018, 44(3): 696-703.Zhang Qiaogen, You Haoyang, Ma Jingtan, et al. Motion behavior of free conducting wire-type particles in SF₆ gas under DC voltage[J]. High Voltage Engineering, 2018, 44(3): 696-703.
[18] 贾江波, 查玮, 杨连殿, 等. 直流电压下绝缘子附近球形导电微粒运动起始电压研究[J]. 西安交通大学学报, 2006, 40(6): 699-703.Jia Jiangbo, Zha Wei, Yang Liandian, et al. Threshold voltage of spherical conducting particle motion near spacer in inhomogeneous electric field[J]. Journal of Xi’an Jiaotong University, 2006, 40(6): 699-703.
[19] 王健, 李伯涛, 李庆民, 等. 直流GIL中线性金属微粒对柱式绝缘子表面电荷积聚的影响[J]. 电工技术学报, 2016, 31(15): 213-222.Wang Jian, Li Botao, Li Qingmin, et al. Impact of linear metal particle on surface charge accumulation of post insulator within DC GIL[J]. Transactions of China Electrotechnical Society, 2016, 31(15): 213-222.
[20] 律方成, 刘宏宇, 李志兵, 等. 直流电压下SF₆气体中电极覆膜对金属微粒启举的影响机理[J]. 电工技术学报, 2017, 32(13): 239-247.Lü Fangcheng, Liu Hongyu, Li Zhibing, et al. Influence mechanism of dielectric coated electrodes on metallic particle lift-off in SF₆ gas under DC voltage[J]. Transactions of China Electrotechnical Society, 2017, 32(13): 239-247.
[21] 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.
[22] Wang Jian, Li Qingmin, Li Botao, et al.Theoretical and experimental studies of the air gap breakdown triggered by a free spherical conducting particle in DC uniform field[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(4): 1951-1958.
[23] 肖淞, 张晓星, 周倩, 等. 不同类型自由金属微粒对SF₆绝缘特性的影响[J]. 中国电机工程学报, 2018, 38(5): 1582-1591.Xiao Song, Zhang Xiaoxing, Zhou Qian, et al. Influence of different types of free metal particles on the properties of SF₆ insulation[J]. Proceedings of the CSEE, 2018, 38(5): 1582-1591.
[24] Hosokawa M, Endo F, Yamagiwa T, et al.Particle- initiated breakdown characteristics and reliability improvement in SF₆ gas insulation[J]. IEEE Transactions on Power Delivery, 1986, 1(1): 58-65.
[25] 李敏, 汪沨, 许松枝, 等. 基于分形理论的SF₆/N₂混合气体放电仿真[J]. 电工技术学报, 2016, 31(24): 88-95.Li Min, Wang Feng, Xu Songzhi, et al. Simulation of discharge in SF₆/N₂ gas mixtures based on fractal theory[J]. Transactions of China Electrotechnical Society, 2016, 31(24): 88-95.
[26] Ward S A.Optimum SF₆-N₂, SF₆-air, SF₆-CO₂ mixtures based on particle contamination[C]// Conference Record of the 2000 IEEE International Symposium on Electrical Insulation, Anaheim, 2000: 292-295.
[27] 雷鸣, 陈琳. 关于GIL和GIS母线产品基本结构尺寸设计探讨[J]. 高压电器, 2013, 49(4): 128-133.Lei Ming, Chen Lin. Discusses on basic structure design of GIL and GIS busbar[J]. High Voltage Apparatus, 2013, 49(4): 128-133.
[28] 黎斌. SF6高压电器设计[M]. 北京: 机械工业出版社, 2010.
[29] 王璁, 屠幼萍, 罗颜, 等. 应用于直流GIL中环境友好型气体的绝缘性能研究[J]. 中国电机工程学报, 2016, 36(24): 6711-6717.Wang Cong, Tu Youping, Luo Yan, et al. Insulation performance of environmentally friendly gas applied to HVDC-GIL[J]. Proceedings of the CSEE, 2016, 36(24): 6711-6717.
[30] 李冰, 肖登明, 赵谡, 等. 第二代气体绝缘输电线路的温升数值计算[J]. 电工技术学报, 2017, 32(13): 271-276.Li Bing, Xiao Dengming, Zhao Su, et al. Temperature rise numerical calculation of the second generation gas insulated transmission line[J]. Transactions of China Electrotechnical Society, 2017, 32(13): 271-276.
[31] 李旭东, 周伟, 屠幼萍, 等. 0.1~0.25MPa气压下二元混合气体SF₆-N₂和SF₆-CO₂的击穿特性[J]. 电网技术, 2012, 36(4): 260-264.Li Xudong, Zhou Wei, Tu Youping, et al. Breakdown characteristics of binary gas mixtures SF₆-N₂ and SF₆-CO₂ under 0.1~0.25MPa atmosphere pressures[J]. Power System Technology, 2012, 36(4): 260-264.
[32] Dengming Xiao.Gas discharge and gas insulation[M]. Shanghai: Shanghai Jiao Tong University Press, 2017: 243-257.
[33] Sakai K, Tsuru S, Abella D L, et al.Conducting particle motion and particle-initiated breakdown in dc electric field between diverging conducting plates in atmospheric air[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1999, 6(1): 122-130.
[34] Cooke C M, Wootton R E, Cookson A H, et al.Influence of particles on AC and DC electrical performance of gas insulated systems at extra- high-voltage[J]. IEEE Transactions on Power Apparatus and Systems, 1977, 96(3): 768-777.
[35] Rizk F A, Masetti C, Comsa R P, et al.Particle- initiated breakdown in SF₆ insulated systems under high direct voltage[J]. IEEE Transactions on Power Apparatus and Systems, 1979, 98(3): 825-836.