光电离对天然酯绝缘油流注放电影响规律研究

doi:10.19595/j.cnki.1000-6753.tces.220409

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摘要

利用紫外吸收剂调控天然酯绝缘油流注放电的光电离行为,对正负极性流注发光通道轴向长度（速度）、发光照度及流注分支中温度分布等开展了定量评估,以解析光电离对流注放电的影响规律。在25 mm 针-板电极系统及相近的雷电冲击击穿电压和击穿时间下,流注发光和流注分支的超高速观测结果表明：流注发光通道主要沿针-板电极轴向发展并呈近似直线形态,而流注分支则以树枝形态发展;流注发光通道沿轴向速度可从1~2 km/s 激增至5~10 km/s,并以近似直线方式贯穿油隙3~4 次,而流注分支轴向发展速度则均保持在0.5~2.4 km/s;整体来看,正、负极性流注的发光照度均可高达104 lx,但正极性流注的平均发光照度略高于负极性流注。流注发光通道演变行为表明,发光通道中的光电离呈现为明显的“先激励,再电离”的分级光电离特征;当光电离被紫外吸收剂抑制后,流注趋于产生更多径向发展分支,并因此导致流注轴向停止长度缩短1~3 mm。此外,抑制光电离导致流注通道内最高温度上升约74~220 K,在流注分支通道内产生了更多的高温热点,促进流注形成更多径向分支。分析结果证明,由于抑制光电离削弱了流注分支头部区域的轴向电场强度,从而抑制了流注头部的电子雪崩行为,因此降低了流注分支沿轴向发展速率。

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关键词 ：天然酯绝缘油, 流注放电, 光电离, 流注分支

Abstract：

In order to analyze the influence of photoionization on streamer discharge in natural ester insulating oil, an ultraviolet absorber was used to regulate the photoionization behaviour of the streamer discharge; Axial length (velocity) and illuminance of streamer luminescence channels, temperature of streamer branches were quantitatively evaluated. Under conditions with a 25 mm needle-plate electrodes system, similar lightning pulse breakdown voltage, and breakdown time, the ultra-high-speed observations for luminescence channels and branches of streamers demonstrate that: streamer luminescence channel mainly propagates along the axis of needleplate electrodes and approximately presents a morphology of straight line, while streamer branches propagate with dendritic morphology; The axial propagation velocity of streamer channel can increase from 1~2 km/s to 5~10 km/s and penetrates the oil gap 3~4 times in an approximately straight path, while the axial propagation velocity of the streamer branches keeps at 0.5~2.4 km/s; Overall, the illuminance of both positive and negative streamers can reach up to 104 Lx, but the average illuminance of positive streamer is slightly higher than that of negative streamer. The evolution of the luminescence channel of streamers reveals that the photoionization in the luminescence channel presents an explicit feature of step photoionization, i.e. "first excitation then ionization"; When photoionization is inhibited by the ultraviolet absorber, streamers tend to produce more radially propagated branches, consequently causing a decrease in axial stop length of streamer by 1~3 mm. In addition, the inhibition of photoionization leads to the increase of the maximum temperature of streamer by 74~220 K and the generation of more high-temperature hot spots in streamer branches, which promotes streamer to generate more radial branches. The analysis and results prove that the inhibition of photoionization weakens the axial electric field intensity in the head region of streamer branches, which can suppress the electron avalanche behavior at the head of streamer, therefore reducing the axial propagation rate of streamer branches.

Key words： Natural ester insulating oil streamer discharge photoionization streamer branches

收稿日期: 2022-03-21

PACS:	TM85
	TM21

基金资助:

国家自然科学基金（51425702,52177016,52130707,52107017,2018YFB0905802 , U1866603 ）和高等学校学科创新引智计划（BP0820005）资助

通讯作者: 王飞鹏男,1977年生,教授,博士生导师,研究方向为高电压绝缘技术。E-mail：fpwang@cqu.edu.cn

作者简介: 李向荣男,1989 年生,博士研究生,研究方向为高电压绝缘技术。E-mail：731496207@qq.com

引用本文:

李向荣, 王飞鹏, 黄正勇, 王强, 李剑. 光电离对天然酯绝缘油流注放电影响规律研究[J]. 电工技术学报, 0, (): 157-157. Li Xiangrong, Wang Feipeng, Huang Zhengyong, Wang Qiang, Li Jian. Impact of Photoionization on Streamer Discharge in Natural Ester Insulating oil. Transactions of China Electrotechnical Society, 0, (): 157-157.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.220409 https://dgjsxb.ces-transaction.com/CN/Y0/V/I/157

[1] 陈鑫, 郝建, 冯大伟, 等. 三元混合式绝缘油和矿物油的雷电冲击击穿及产气特性对比分析研究[J].电工技术学报, 2020, 35(4): 906-918.
Chen Xin, Hao Jian, Feng Dawei, et al.Comparative study on lightning impulse breakdown and gas production characteristics of three-element mixed insulation oil and mineral oil[J]. Transactions of China Electrotechnical Society, 2020, 35(4): 906-918.
[2] Yoshida Y, Nishimatsu M. Power capacitors[J]. IEEE Transactions on Electrical Insulation, 1986, EI-21(6): 963-973.
[3] Zallo M, Susaeta I, Bargos T, et al.Evaluation of the performance of two commercial starters on the bioremediation of soils contaminated with mineral oil and HCH (Hexachlorocyclohexane)[J]. Biotechnology Letters, 1996, 18(3): 339-342.
[4] Li Xiangrong, Li Jian, Wang Feipeng, et al.Study on the noise characteristics of 10 kV vegetable insulating oil transformer[C]//2018 IEEE International Conference on High Voltage Engineering and Application (ICHVE), Athens, Greece, 2019: 1-4.
[5] 李剑, 姚舒瀚, 杜斌, 等. 植物绝缘油及其应用研究关键问题分析与展望[J]. 高电压技术, 2015, 41(2): 353-363.
Li Jian, Yao Shuhan, Du Bin, et al.Analysis to principle problems and future prospect of research on vegetable insulating oils and their applications[J]. High Voltage Engineering, 2015, 41(2): 353-363.
[6] 廖瑞金, 梁帅伟, 杨丽君, 等. 天然酯-普通纸(或热稳定纸)绝缘热老化特性[J]. 电工技术学报, 2009,24(12): 12-17.
Liao Ruijin, Liang Shuaiwei, Yang Lijun, et al.Insulation thermal aging properties of natural ester immersed paper comparing with that of conventional and thermally upgraded papers[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 12-17.
[7] 高春嘉, 齐波, 韩昊, 等. 大尺寸油纸绝缘结构多电压应力下空间电场特性[J]. 电工技术学报, 2019,34(22): 4816-4826.
Gao Chunjia, Qi Bo, Han Hao, et al.Space electric field characteristics in oil of large-scale oil-pressboard structure under various voltage stresses[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4816-4826.
[8] 魏意恒, 杨丽君, 徐治仁, 等. “快速发展型”放电故障及其对油纸绝缘的损伤特性[J]. 电工技术学报, 2022, 37(4): 1020-1030.
Wei Yiheng, Yang Lijun, Xu Zhiren, et al.The rapiddevelopment-type discharge failure and its damage characteristics to oil-paper insulation[J]. Transactions of China Electrotechnical Society, 2022, 37(4): 1020-1030.
[9] 杨帆, 池骋, 刘刚, 等. 计及温度-电场强度非线性的换流变压器瞬态电场影响分析[J]. 电工技术学报, 2020, 35(23): 4971-4979.
Yang Fan, Chi Cheng, Liu Gang, et al.Study on transient insulation condition of converter transformer based on nonlinearity between temperature and electric field[J]. Transactions of China Electrotechnical Society, 2020, 35(23): 4971-4979.
[10] 林翔. 植物绝缘油长油隙雷电冲击放电特性研究[D].重庆: 重庆大学, 2017.
[11] 温嘉烨, 李元, 林道鸿, 等. 交流电压下变压器油中流注发展时空演化的光-电信号特征研究[J]. 电工技术学报, 2019, 34(4): 838-846.
Wen Jiaye, Li Yuan, Lin Daohong, et al.Optical and electrical characteristics on space-time evolution of streamer propagation in transformer oil under AC voltage[J]. Transactions of China Electrotechnical Society, 2019, 34(4): 838-846.
[12] Rao U M, Fofana I, Beroual A, et al.A review on prebreakdown phenomena in ester fluids: prepared by the international study group of IEEE DEIS liquid dielectrics technical committee[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2020, 27(5): 1546-1560.
[13] Lesaint O.Prebreakdown phenomena in liquids: propagation ‘modes’ and basic physical properties[J]. Journal of Physics D: Applied Physics, 2016, 49(14): 144001.
[14] 张永泽, 唐炬, 潘成, 等. 油流速度对含气泡变压器油击穿特性的影响[J]. 电工技术学报, 2022,37(2): 479-487.
Zhang Yongze, Tang Ju, Pan Cheng, et al.Impact of velocity on breakdown characteristics of transformer oil containing bubbles[J]. Transactions of China Electrotechnical Society, 2022, 37(2): 479-487.
[15] 张永泽, 唐炬, 潘成, 等. 温度对流动变压器油中悬移气泡局部放电特性的影响与作用机制[J]. 电工技术学报, 2020, 35(6): 1357-1367.
Zhang Yongze, Tang Ju, Pan Cheng, et al.Effects of temperature on partial discharge characteristics induced by suspended bubbles in flowing transformer oil and the mechanism[J]. Transactions of China Electrotechnical Society, 2020, 35(6): 1357-1367.
[16] Ingebrigtsen S, Lundgaard L E, Åstrand P O.Effects of additives on prebreakdown phenomena in liquid cyclohexane: II. Streamer propagation[J]. Journal of Physics D: Applied Physics, 2007, 40(18): 5624-5634.
[17] Ingebrigtsen S, Smalo H S, Astrand P O, et al.Effects of electron-attaching and eEectron-releasing additives on streamers in liquid cyclohexane[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2009, 16(6): 1524-1535.
[18] Wang Kaizheng, Wang Feipeng, Lou Ziyi, et al.Relationship between the electrical characteristics of molecules and fast streamers in ester insulation oil[J]. International Journal of Molecular Sciences, 2020, 21(3): 974.
[19] 王开正. 抗老化中链脂肪酸三酯绝缘油的击穿及流注放电研究[D]. 重庆: 重庆大学, 2020.
[20] Joshi R P, Thagard S M.Streamer-like electrical discharges in water: part I. fundamental mechanisms[J]. Plasma Chemistry and Plasma Processing, 2013, 33(1): 1-15.
[21] Sun Anbang, Huo Chao, Zhuang Jie.Formation mechanism of streamer discharges in liquids: a review[J]. High Voltage, 2016, 1(2): 74-80.
[22] Madshaven I, Hestad O L, Unge M, et al.Photoionization model for streamer propagation mode change in simulation model for streamers in dielectric liquids[J]. Plasma Research Express, 2020, 2(1): 015002.
[23] Madshaven I, Smalø H S, Unge M, et al.Photoionization model for the transition to fast mode streamers in dielectric liquids[C]//2016 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Toronto, ON, Canada, 2016: 400-403.
[24] Madshaven I.Modeling the propagation of streamers in liquids-the townsend-meek criterion and a novel model for photoionization[D]. Norway: Norwegian University of Science and Technology, 2015.
[25] Liang Suning, Wang Feipeng, Huang Zhengyong, et al.Significantly improved electrical breakdown strength of natural ester liquid dielectrics by doping ultraviolet absorbing molecules[J]. IEEE Access, 2019, 7: 73448-73454.
[26] Li Xiangrong, Wang Feipeng, Wang Kaizheng, et al.Numerical evaluation on the propagation of nonbreakdown streamer in natural ester under negative lightning impulse voltage via shadowgraph imaging[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2021, 28(4): 1198-1206.
[27] IEC 60060 High voltage test techniques[S]. 1994.
[28] Grana C, Borghesani D, Santinelli P, et al.Veiling Luminance estimation on FPGA-based embedded smart camera[C]//2012 IEEE Intelligent Vehicles Symposium, Madrid, Spain, 2012: 334-339.
[29] Lu W, Liu Q, Wang Z D.Pre-breakdown and breakdown mechanisms of an inhibited gas to liquid hydrocarbon transformer oil under negative lightning impulse voltage[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2017, 24(5): 2809-2818.
[30] Lu W, Liu Q, Wang Z D.Pre-breakdown and breakdown mechanisms of an inhibited gas to liquid hydrocarbon transformer oil under negative lightning impulse voltage[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2017, 24(5): 2809-2818.
[31] 赵丽娟. 发光物理:分立发光中心的能级与发光[M]. 天津: 南开大学出版社, 2021.
[32] Blasse G, Grabmaier B C.发光材料[M].陈昊鸿,李江译. 北京: 高等教育出版社, 2019.
[33] 刘民, 唐炬, 潘成. 空气中针板直流正负电晕发展过程实验研究[J]. 高电压技术, 2016, 42(4): 1018-1027.
Liu Min, Tang Ju, Pan Cheng.Development processes of positive and negative DC corona under needle-plate electrode in the air[J]. High Voltage Engineering, 2016, 42(4): 1018-1027.
[34] 张连珠, 孟秀兰. 离子(N₂⁺, N⁺)在氮辉光放电等离子体光辐射中的作用[J]. 核聚变与等离子体物理,2008, 28(2): 115-120.
Zhang Lianzhu, Meng Xiulan.Role of ions (N₂⁺, N⁺) in the optical emission in nitrogen glow discharge plasma[J]. Nuclear Fusion and Plasma Physics, 2008, 28(2): 115-120.
[35] Hwang J G, Zahn M, Pettersson L A A. Mechanisms behind positive streamers and their distinct propagation modes in transformer oil[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2012, 19(1): 162-174.
[36] 沈其工, 方瑜, 周泽存. 高电压技术[M]. 4 版. 北京:中国电力出版社, 2012.
[37] 李元, 穆海宝, 邓军波, 等. 正极性纳秒脉冲电压下变压器油中流注放电仿真研究[J]. 物理学报,2013, 62(12): 124703.
Li Yuan, Mu Haibao, Deng Junbo, et al.Simulational study on streamer discharge in transformer oil under positive nanosecond pulse voltage[J]. Acta Physica Sinica, 2013, 62(12): 124703.