电场不均匀系数对SF<sub>6</sub>/N<sub>2</sub>混合气体负直流电晕电流脉冲特性的影响

doi:10.19595/j.cnki.1000-6753.tces.201633

Abstract
Figure/Table
References (0)
Related Citation (5)

Download: PDF (3122 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

In order to investigate the current pulse characteristics of negative DC corona in SF₆/N₂gas mixtures, a two-dimensional axisymmetric needle-to-plane geometry model in SF₆/N₂ gas mixtures was established, and the negative DC corona discharge under different electric field non-uniformity coefficients was simulated.By coupling the continuity equations of positive ion, negative ion and electron in the discharge with Poisson equation, the formation mechanism of negative corona current pulse was studied. The effect of electric field non-uniformity coefficient on the change process of charged particles and current pulse characteristic parameters was analyzed. The validity of simulation model was verified by the needle-to-plane model corona discharge experimental platform.The simulation results show that during the formation of the current pulse, the electron number density is much smaller than the ion number density, and the positive ion number density is greater than the negative ion number density.Each current pulse corresponds to the formation and drift of a negative-ion cloud.With decreasing the electric field non-uniformity coefficient, the negative corona will deviate from the needle tip first and then move back to the needle tip due to the electrostatic repulsion between the needle electrode and the negative-ion cloud.The pulse amplitude shows an overall increasing trend, the initial pulse duration increases, the rise time and fall time of pulse increase,and the pulse-repetition rate decreases.

Key words： Negative DC corona current pulse electric field non-uniformity coefficient SF₆/N₂ gas mixtures needle-to-plane model

Received: 11 December 2020

PACS:

TM851

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	He Yanliang
	Ding Wei
	Sun Anbang
	Zhang Guanjun

Cite this article:

He Yanliang,Ding Wei,Sun Anbang等. Effect of Electric Field Non-Uniformity Coefficient on Current Pulse Characteristics of Negative DC Corona in SF₆/N₂Gas Mixtures[J]. Transactions of China Electrotechnical Society, 2021, 36(15): 3124-3134.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201633 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I15/3124

[1] 周朕蕊, 韩冬, 赵明月, 等. SF₆替代气体分解特性的研究综述[J]. 电工技术学报, 2020, 35(23): 4998-5014.
Zhou Zhenrui, Han Dong, Zhao Mingyue, et al.Review on decomposition characteristics of SF₆alternative gases[J]. Transactions of China Electrotechnical Society, 2020, 35(23): 4998-5014.
[2] 张晓星, 陈琪, 张季, 等. 高气压下环保型 C₄F₇N/CO₂混合气体工频击穿特性[J].电工技术学报, 2019, 34(13): 2839-2845.
ZhangXiaoxing, ChenQi, ZhangJi, et al. Power frequency breakdown characteristics of environmental-friendly C₄F₇N/CO₂gas mixtures under high pressure conditions[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2839-2845.
[3] 刘溟, 邹建明, 邱睿, 等. SF₆及SF₆/N₂中分解气体在气体绝缘传输管道内的扩散特性计算[J]. 电工技术学报, 2020, 35(11): 2478-2490.
Liu Ming, Zou Jianming, Qiu Rui, et al.The computation of diffusion characteristics of decomposition gases in SF₆ and SF₆/N₂ within gas insulated transmission lines[J]. Transactions of China Electrotechnical Society, 2020, 35(11): 2478-2490.
[4] 李康, 郭润睿, 张国强. 一种SF₆替代气体——氟碳气体的故障分解气体产生规律及基于分解物气体的故障判据研究[J]. 电工技术学报, 2019, 34(12): 2649-2656.
Li Kang, Guo Runrui, Zhang Guoqiang.Study on fault decomposition properties and fault diagnostic criterion of fluorocarbon gas—a substitute gas for SF₆[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2649-2656.
[5] He Yanliang, Sun Anbang, Xue Jianyi, et al.Experimental study on pulse characteristics of negative corona discharge in SF₆/N₂ gas mixtures under DC voltages[J]. AIP Advances, 2020, 10(5): 055027.
[6] Lieberoth-Leden B, Pfeiffer W.Predischarge development in N₂ andSF₆ at high gas pressure[J]. IEEE Transactionson Electrical Insulation,1989, 24(2): 285-296.
[7] 何寿杰, 张钊, 李庆, 等. 针板负直流电晕放电中的脉冲等离子体特性[J].高电压技术, 2018, 44(3): 870-875.
He Shoujie, Zhang Zhao, Li Qing, et al.Characteristics of pulsing plasma in needle-plane corona discharge driven by negative direct power source[J]. High Voltage Engineering, 2018, 44(3): 870-875.
[8] 徐建源, 陈会利, 林莘, 等.针-板电极下SF₆的电晕放电特性分析[J].高电压技术, 2019, 45(1): 293-302.
Xu Jianyuan, Chen Huili, Lin Xin, et al.Analysis of corona discharge characteristics of SF₆under pin-plate electrodes[J]. High Voltage Engineering, 2019, 45(1): 293-302.
[9] 臧奕茗, 钱勇, 刘伟, 等.C₄F₇N/CO₂混合气体中尖端缺陷的流注放电仿真研究[J].电工技术学报, 2020, 35(1): 34-42.
ZangYiming, QianYong, LiuWei, et al. Simulation study on streamer of tip defects in C₄F₇N/CO₂mixed gas[J]. Transactions of China Electrotechnical Society, 2020, 35(1): 34-42.
[10] 梅丹华, 方志, 邵涛. 大气压低温等离子体特性与应用研究现状[J]. 中国电机工程学报, 2020, 40(4): 1339-1358.
Mei Danhua, Fang Zhi, Shao Tao.Recent progress on characteristics and applications of atmospheric pressure low temperature plasmas[J]. Proceedings of the CSEE, 2020, 40(4): 1339-1358.
[11] Malik NH, Qureshi A H. Calculationofdischargeinceptionvoltages in SF₆-N₂mixtures[J]. IEEE Transactionson Electrical Insulation,1979, EI-14(2): 70-76.
[12] 邱毓昌, 冯允平. SF₆/N₂混合气体绝缘强度的计算[J]. 中国电机工程学报, 1993, 13(增刊1): 57-62.
Qiu Yuchang, Feng Yunping.Calculation of dielectric strength of SF₆/N₂gas mixtures[J]. Proceedings of the CSEE, 1993, 13(S1): 57-62.
[13] 汪沨, 李锰, 潘雄峰, 等. 基于FEM-FCT算法的SF₆/N₂混合气体中棒-板间隙电晕放电特性的仿真研究[J]. 电工技术学报, 2013, 28(9): 261-267.
Wang Feng, Li Meng, Pan Xiongfeng, et al.Corona discharge simulations of rod-plate gap in SF₆/N₂gas mixtures using FEM-FCT method[J]. Transactions of China Electrotechnical Society, 2013, 28(9): 261-267.
[14] 陈会利, 徐建源, 李璐维, 等. 不均匀电场SF₆/N₂混合气体击穿特性的实验研究[J]. 高压电器, 2016, 52(12): 110-115.
Chen Huili, Xu Jianyuan, Li Luwei, et al.Experimental study on breakdown characteristics of SF₆/N₂ mixtures in non-uniform electric field[J]. High Voltage Apparatus, 2016, 52(12): 110-115.
[15] 庞培川, 孙泽明, 张芊, 等. 直流电压作用下极不均匀电场中SF₆/N₂混合气体局部放电起始特性研究[J]. 西安交通大学学报, 2019, 53(4): 1-7.
Pang Peichuan, Sun Zeming, Zhang Qian, et al.Study on partial discharge initial characteristics of extremely inhomogeneous electric field in SF₆/N₂mixture under DC high voltage[J]. Journalof Xi’an Jiaotong University, 2019, 53(4): 1-7.
[16] GeorghiouG E, PapadakisA P, MorrowR,et al. Numerical modelling of atmospheric pressure gas discharges leading to plasma production[J].Journal of Physics D: Applied Physics,2005, 38(20): R303-R328.
[17] Gao Qingqing, Niu Chunping, AdamiakKazimierz, et al. Numerical simulation of negative point-plane corona discharge mechanism in SF₆ gas[J]. Plasma Sources Scienceand Technology,2018, 27(11):115001.
[18] Morrow R. A survey of the electron and ion transport propertiesof SF₆[J].IEEE Transactionson Plasma Science, 1986, PS-14(3):234-239.
[19] Davies A J, Davies C S, Evans C J.Computer simulation of rapidly developing gaseous discharges[J]. Proceedingsof IEE,1971, 118(6): 816-823.
[20] 李璐维, 林莘, 徐建源, 等. SF₆/N₂和SF₆/CF₄混合气体放电参数计算分析[J]. 高压电器, 2016, 52(12): 60-65.
Li Luwei, Lin Xin, Xu Jianyuan, et al.Calculation of the discharging parameters of SF₆/N₂ and SF₆/CF₄mixtures[J]. High Voltage Apparatus, 2016, 52(12): 60-65.
[21] Guo Can, Zhang Qiaogen, MaJingtan, et al. Negative synergistic effect of SF₆/N₂gas mixtures in non-uniform electric field under lightning impulse[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2018, 25(4):1393-1402.
[22] Herrebout D, Bogaerts A, Yan M, et al.One-dimensional fluid model for an rf methane plasma of interest in deposition of diamond-like carbon layers[J]. Journal of Applied Physics, 2001, 90(2):570-579.
[23] DhaliS K, PalA K.Numerical simulation of streamers in SF₆[J].Journal of Applied Physics,1988, 63(5): 1355-1362.
[24] ZengF, Zhang M,YangD, et al.Hybrid numerical simulation of decomposition of SF₆ under negative DC partial discharge process[J].Plasma Chemistry and Plasma Processing,2019, 39(1): 205-226.
[25] SatoN.Discharge current induced by the motion of charged particles[J].Journal of Physics D: Applied Physics,1980, 13(1): L3-L6.
[26] 邱毓昌. GIS装置及其绝缘技术[M]. 北京: 水利电力出版社, 1994.
[27] 侯志强, 郭若琛, 李军浩. 直流电压下SF₆/N₂混合气体沿面局部放电特性[J]. 电工技术学报, 2020, 35(14): 3087-3096.
Hou Zhiqiang, Guo Ruochen, Li Junhao.Partial discharge characteristics of the surface discharge in SF₆/N₂ of the mixed gas under DC voltage[J]. Transactions of China Electrotechnical Society, 2020, 35(14): 3087-3096.
[28] ReidA J, Judd M D. Ultra-wide bandwidth measurement of partial discharge current pulses in SF₆[J]. Journal of Physics D: Applied Physics, 2012, 45(16): 165203.
[29] Reid A J,Judd M D, Stewart B G, et al.Partial discharge current pulses in SF₆ and the effect of superposition of their radiometric measurement[J] Journal of Physics D: Applied Physics, 2006, 39(19):4167-4177.
[30] He Yanliang, Sun Anbang, Zhang Xing, et al.Effect of trace SF₆ on negative corona characteristics in SF₆/N₂ gas mixtures under DC voltages[J]. AIP Advances, 2020, 10(8): 085303.