长空气间隙放电通道的绝缘恢复特性

doi:10.19595/j.cnki.1000-6753.tces.191567

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Abstract

After the transmission line trips due to gap discharge caused by overvoltage, the insulation recovery time of the discharge channel plays an important role in the setting of the reclosing time of the power system. Based on the Schlieren technique, the insulation recovery process of the discharge channel after withstanding and breakdown was observed under different impulse voltages. The test results show that when the gap withstands, the discharge channel near the electrode dissipates faster, and the evolution shape is similar to the “mushroom cloud”, while the discharge channel far away from the electrode only makes radial expansion; when the gap breaks down, the channel evolves like a “caterpillar”, and the discharge channel has a “bottleneck” phenomenon in the central illuminating area at the bend and bifurcation. The statistical results show that the insulation recovery time under different voltage levels is 5~25ms, and increases logarithmically with the increase of the injection energy when the gap withstands; when the gap breaks down and the natural wind speed is 2m/s, the insulation recovery time under the positive lightning impulse voltage, the positive switching impulse voltage and the negative switching impulse voltage with different voltage levels are 46.1~243.9ms, 6.97~107.74ms and 8.09~153.62ms, respectively.

Key words： Long air gaps discharge channel insulation recovery evolution shape Schlieren technique

Received: 19 November 2019

PACS:

TM855

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	Liu Xiaopeng
	Zhao Xiangen
	Liu Lei
	Wang Xiankang
	He Junjia

Cite this article:

Liu Xiaopeng,Zhao Xiangen,Liu Lei等. Characteristics of the Discharge Channel during the Relaxation Process in the Long Air Gap[J]. Transactions of China Electrotechnical Society, 2021, 36(2): 380-387.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191567 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I2/380

[1] 万启发, 霍锋, 谢梁, 等. 长空气间隙放电特性研究综述[J]. 高电压技术, 2012, 38(10): 2499-2505.
Wan Qifa, Huo Feng, Xie Liang, et al.Summary of research on flashover characteristics of long air- gap[J]. High Voltage Engineering, 2012, 38(10): 2499-2505.
[2] 谷琛, 张文亮, 范建斌. 超/特高压输电工程典型间隙操作冲击放电特性试验研究综述[J]. 电网技术, 2011, 35(1): 11-17.
Gu Chen, Zhang Wenliang, Fan Jianbin.Summary of experimental study on switching impulse flashover characteristics of typical air gaps in EHV/UHV transmission systems[J]. Power System Technology, 2011, 35(1): 11-17.
[3] 蔡国伟, 雷宇航, 葛维春, 等. 高寒地区风电机组雷电防护研究综述[J]. 电工技术学报, 2019, 34(22): 4804-4815.
Cai Guowei, Lei Yuhang, Ge Weichun, et al.Review of research on lightning protection for wind turbines in alpine areas[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4804-4815.
[4] 张刘春. ±1100kV特高压直流输电线路防雷保护[J].电工技术学报, 2018, 33(19): 4611-4617.
Zhang Liuchun.Lightning protection of ±1100kV UHVDC transmission line[J]. Transactions of China Electrotechnical Society, 2018, 33(19): 4611-4617.
[5] 蔡新景, 邹晓兵, 王新新. 氮气短间隙的耐受电压和气体密度恢复特性[J]. 高电压技术, 2011, 37(6): 1471-1478.
Cai Xinjing, Zou Xiaobing, Wang Xinxin.Recovery of hold off voltage and gas density in short nitrogen gaps[J]. High Voltage Engineering, 2011, 37(6): 1471-1478.
[6] 袁宇春, 张保会. 对整定线路重合闸时间的讨论[J].继电器, 2000, 28(1): 13-15.
Yuan Yuchun, Zhang Baohui.Discussions for setting reclosing time of transmission lines[J]. Relay, 2000, 28(1): 13-15.
[7] 叶海峰, 谈发力, 吴昊, 等. 多重雷击导致变电站重合闸失败原因分析[J]. 水电能源科学, 2017, 35(9): 173-176.
Ye Haifeng, Tan Fali, Wu Hao, et al.Analysis of reclosing failure of substation caused by multiple lightning strikes[J]. Water Resources and Power, 2017, 35(9): 173-176.
[8] Les Renardières Group.Double impulse tests of long airgaps. part 1: engineering problems and physical processes: the basis of recent tests[J]. Physical Science, Measurement and Instrumentation, Manage- ment and Education-Reviews, IEE Proceedings A, 1986, 133(7): 395-409.
[9] Les Renardières Group.Double impulse tests of long airgaps. part 2: leader decay and reactivation[J]. Physical Science, Measurement and Instrumentation, Management and Education Reviews, IEE Pro- ceedings A, 1986, 133(7): 410-437.
[10] 陈维江, 曾嵘, 贺恒鑫. 长空气间隙放电研究进展[J]. 高电压技术, 2013, 39(6): 1281-1295.
Chen Weijiang, Zeng Rong, He Hengxin.Research progress of long air gap discharges[J]. High Voltage Engineering, 2013, 39(6): 1281-1295.
[11] Zhao Xiangen, Liu Lipeng, Wang Xiaolei, et al.On the velocity-current relation of positive leader discharges[J]. Geophysical Research Letters, 2019, 46(1): 512-518.
[12] 邓慰, 孟刚, 陈勇, 等. 高海拔地区500kV单回输电线路空气间隙放电特性[J]. 电工技术学报, 2013, 28(9): 255-260, 267.
Deng Wei, Meng Gang, Chen Yong, et al.Flashover characteristic for high altitude 500kV single-circuit transmission line[J]. Transactions of China Electro- technical Society, 2013, 28(9): 255-260, 267.
[13] 刘昌, 周旋, 庄池杰, 等. 两种湿度下特高压尺度真型工程间隙操作冲击放电试验观测[J]. 电工技术学报, 2019, 34(10): 2239-2246.
Liu Chang, Zhou Xuan, Zhuang Chijie, et al.Obser- vation of leader discharges in UHV engineering real- size air gaps under switching impulse under two kinds of humidity[J]. Transactions of China Electro- technical Society, 2019, 34(10): 2239-2246.
[14] 杨亚奇, 李卫国, 夏喻, 等. 低气压下长间隙交直流放电特性研究[J]. 电工技术学报, 2018, 33(5): 1143-1150.
Yang Yaqi, Li Weiguo, Xia Yu, et al.Research of AC and DC discharge characteristics of long gap under low pressure[J]. Transactions of China Electro- technical Society, 2018, 33(5): 1143-1150.
[15] 谢耀恒, 彭平, 刘赟, 等. 低电压上升率条件下正极性不连续先导发展特性[J]. 电工技术学报, 2018, 33(14): 3406-3414.
Xie Yaoheng, Peng Ping, Liu Yun, et al.The deve- lopment characteristics of the discontinuous leader under the positive switching impulse with low rate of voltage rising[J]. Transactions of China Electro- technical Society, 2018, 33(14): 3406-3414.
[16] 赵贤根, 岳一石, 杨永超, 等. 适用于流注茎温度场测量的定量纹影系统及其图片处理方法[J]. 中国电机工程学报, 2017, 37(23): 7047-7057, 7097.
Zhao Xiangen, Yue Yishi, Yang Yongchao, et al.Quantitative schlieren system and image processing method applicable to the measurement of stem temper- ature field[J]. Proceedings of the CSEE, 2017, 37(23): 7047-7057, 7097.
[17] Turnbull S M, MacGregor S J, Tuema F A, et al. A quantitative laser schlieren method for measurement of neutral gas density in high-pressure gas switches[J]. Measurement Science and Technology, 1993, 4(10): 1154-1159.
[18] Zhao Xiangen, Liu Lipeng, Yue Yishi, et al.On the use of quantitative schlieren techniques in temper- ature measurement of leader discharge channels[J]. Plasma Sources Science Technology, 2019, DOI: 10. 1088/1361-6595/ab1c3e.
[19] Kurimoto A, Farish O, Tedford D J.Schlieren studies of impulse breakdown in air gaps[J]. Proceedings of the Institution of Electrical, 1978, 125(8): 767-769.
[20] Domens P, Gibert A, Dupuy J, et al.Leader filament study near the anode in a rod plane gap[J]. Journal of Physics D: Applied Physics, 1991, 24(7): 1088-1097.
[21] Yue Yishi, He Junjia.Digital time-resolved optical measurement of discharge currents in long air gaps[J]. Review of Scientific Instruments, 2013, 84(8): 085107.
[22] Zhao Xiangen, He Junjia, Luo Bing, et al.Relaxation process of the discharge channel near the anode in long air gaps under positive impulse voltages[J]. Journal of Physics D: Applied Physics, 2017, 50(48): 485206.
[23] 赵贤根. 正极性冲击电压下长空气间隙流注茎特性研究[D]. 武汉: 华中科技大学, 2017.
[24] Aleksandrov N L, Bazelyan M, Konchakov A M.Evolution of the channel of a long leader in air after a sharp decrease in the discharge current[J]. Plasma Physics Reports, 2003, 29(3): 220-225.
[25] 邵沈会, 闫广新, 林雪峰. 石河子与新疆主网联网短路电流限制措施研究[J]. 电力勘测设计, 2019(9): 1-6.
Shao Shenhui, Yan Guangxin, Lin Xuefeng.Study on short-circuit current limiting measures for grid networking project of Shihezi power grid and state grid of Xinjiang[J]. Electric Power Survey & Design, 2019(9): 1-6.
[26] 艾琳, 冯艳虹, 陈为化, 等. 特高压接入京津冀北500kV电网短路电流问题及限流措施研究[J]. 电力系统保护与控制, 2017, 45(9): 133-137.
Ai Lin, Feng Yanhong, Chen Weihua, et al.Research on short-circuit current problem and limiting measures caused by UHV substation connecting to 500kV network in Beijing-Tianjin area and northern Hebei[J]. Power System Protection and Control, 2017, 45(9): 133-137.