隔离开关电弧流体数学模型研究与应用

doi:10.19595/j.cnki.1000-6753.tces.200321

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摘要在流注放电理论的基础上,该文从微观粒子的动力学特性出发,研究隔离开关触头间隙放电机理,建立cm级间隙电弧击穿及高频过电压下介质恢复过程的流体数学模型。搭建隔离开关电弧特性实验平台,对比分析仿真与实验波形的特征参数及频率分布,结果表明,击穿过程中,电弧电阻的变化规律由空间电子数密度与电场强度决定,0~1.7ns内电弧电阻下降率较大,随后逐渐变缓,10.89ns放电通道完全导通,电弧电阻减小至0.02Ω,随后气体介质开始恢复,并受电源电压特性决定。仿真电压波形参数与实测数据误差范围为2%~10%。因此,流体数学模型能够科学地解释隔离开关触头间隙微观粒子的动态发展过程,将线路电压特性、放电结构特征与电弧微观发展过程相结合,为指导隔离开关设计提供理论依据。

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关键词 ：隔离开关, 隔离开关, 电弧模型, 电弧模型, 流注放电, 流注放电, 介质恢复, 介质恢复

Abstract：In the paper, the kinetic properties of microparticles are studied based on the streamer discharge theory, and a fluid arc mathematical model applied in centimeter clearance is established. An test platform is built for the disconnector arc characteristics, and the transient characteristics of the arc voltage and current waveforms are compared and analyzed. It can be concluded that the change rule of arc resistance is determined by space electron number density and electric field intensity during the breakdown process. The arc resistance falls faster in 0~1.7ns, and then gradually slows down. The plasma channel is completely turned on at 10.89ns, and the arc resistance is reduced to 0.02Ω. Then, the gas medium begins to recover that determined by the characteristics of power voltage and current. The error range between the simulated voltage waveform and the measured data is 2%~10%. Therefore, the fluid arc mathematical model can scientifically explain the dynamic development process of microparticles in the contact clearance. It combines the system voltage characteristics, structure characteristics of disconnector with the development process of microparticles, which provides a theoretical basis for the design of disconnector.

Key words： Disconnector Disconnector arc model arc model streamer discharge streamer discharge dielectric recovery dielectric recovery

收稿日期: 2020-03-29

PACS:

TM501

通讯作者: 郝莎女,1989年生,博士研究生,研究方向为气体放电及高压开关设备电磁暂态仿真。E-mail: sygygdyhs@163.com

作者简介: 徐建源男,1961年生,教授,博士生导师,研究方向为高压电器、气流电弧理论等。E-mail: intxjy@163.com

引用本文:

郝莎, 徐建源, 林莘. 隔离开关电弧流体数学模型研究与应用[J]. 电工技术学报, 2021, 36(13): 2710-2718. Hao Sha, Xu Jianyuan, Lin Xin. Study on the Application of Fluid Arc Model in Disconnector. Transactions of China Electrotechnical Society, 2021, 36(13): 2710-2718.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.200321 https://dgjsxb.ces-transaction.com/CN/Y2021/V36/I13/2710

[1] 孟涛, 林莘, 徐建源. 分段电弧模型下VFTO的计算与分析[J]. 电工技术学报, 2010, 25(9): 69-73.
Meng Tao, Lin Xin, Xu Jianyuan.Calculation of very fast transient over-voltage on the condition of segmental arcing model[J]. Transactions of China Electrotechnical Society, 2010, 25(9): 69-73.
[2] Zhan Huamao, Duan Shaofeng, Li Chengrong.A novel arc model for very fast transient overvoltage simulation in a 252kV gas-insulated switchgea[J]. IEEE Transactions on Plasma Science, 2014, 48(10): 12-16.
[3] 许晔, 郭谋发, 陈彬, 等. 配电网单相接地电弧建模及仿真分析研究[J]. 电力系统保护与控制, 2015, 43(7): 57-64.
Xu Ye, Guo Moufa, Chen Bin, et al.Modeling and simulation analysis of arc in distribution network[J]. Power System Protection and Control, 2015, 43(7): 57-64.
[4] 陈维江, 颜湘莲, 王绍武, 等. 气体绝缘开关设备中特快速瞬态过电压研究的新进展[J]. 中国电机工程学报, 2011, 31(31): 1-11.
Chen Weijiang, Yan Xianglian, Wang Shaowu, et al.Recent progress in investigations on very fast transient overvoltage in gas insulated switchgear[J]. Proceedings of the CSEE, 2011, 31(31): 1-11.
[5] Chen Weijiang, Wang Hao, Han Bin, et al.Study on the influence of disconnector characteristics on very fast transient overvoltages in 1100kV gas insulated switchgear[J]. IEEE Transactions on Power Delivery, 2015, 30(4): 2037-2044.
[6] 夏亚龙, 林莘, 徐建源, 等. 非平衡态SF₆等离子体弛豫特性研究[J]. 电工技术学报, 2018, 33(5): 1125-1132.
Xia Yalong, Lin Xin, Xu Jianyuan, et al.Study on the relaxation characteristics of non-equilibrium SF₆ plasma[J]. Transactions of China Electrotechnical Society, 2018, 33(5): 1125-1132.
[7] 张建功, 赵军, 谢鹏康, 等. VFTO作用下电子式电流互感器二次端口电磁特性仿真分析[J]. 电工技术学报, 2015, 30(增刊2): 88-94.
Zhang Jiangong, Zhao Jun, Xie Pengkang, et al.Simulation and analysis of electromagnetic pro- perties at the secondary port of electronic current transformers under very fast transient overvoltage[J]. Transactions of China Electrotechnical Society, 2015, 30(S2): 88-94.
[8] Davies A J, Davies C S, Evans C J.Computer simulation of rapidly developing gaseous discharges[J]. IEEE Proceedings-Science: Measurement and Tech- nology, 1971, 118(6): 816-823.
[9] Dhail S K, Williams P F.Two-dimensional studies of streamers in gases[J]. Journal of Applied Physics, 1987, 62(12): 4696-4707.
[10] Kulikovsky A A.The role of photo ionization in positive streamer dynamics[J]. Journal of Physics D: Applied Physics, 2000, 33(12): 1514-1524.
[11] Min W G, Kim H S, Lee S H, et al.A study on the streamer simulation using adaptive mesh generation and FEM-FCT[J]. IEEE Transactions on Magnetics, 2001, 37(5): 3141-3144.
[12] 庄池杰, 耿屹楠, 曾嵘. 基于不连续有限元的短间隙气体放电仿真算法及其应用[J]. 高电压技术, 2013, 39(4): 970-978.
Zhuang Chijie, Geng Yinan, Zeng Rong.Discon- tinuous Galerkin method for short air gap discharge simulations and its applications[J]. High Voltage Engineering, 2013, 39(4): 970-978.
[13] 汪沨, 李敏, 李锰, 等. 基于ETG-通量校正传输法的短间隙SF₆/N₂混合气体流注放电数值仿真[J]. 电工技术学报, 2016, 31(6): 234-241.
Wang Feng, Li Min, Li Meng, et al.Numerical simulation of short gap streamer discharge in SF₆/N₂ gas mixtures based on Euler-Taylor-Galerkin-flux corrected transport method[J]. Transactions of China Electrotechnical Society, 2016, 31(6): 234-241.
[14] 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.
[15] 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.
Zang Yiming, Qian Yong, Liu Wei, et al.Simulation study on streamer of tip defects in C₄F₇N/CO₂ mixed gas[J]. Transactions of China Electrotechnical Society, 2020, 35(1): 34-42.
[16] 杨亚奇, 李卫国. 低气压直流电压下流注放电特性与极性效应的反转[J]. 电工技术学报, 2018, 33(13): 3080-3088.
Yang Yaqi, Li Weiguo.DC streamer discharge characteristics and the reversion of polarity effect under low pressure condition[J]. Transactions of China Electrotechnical Society, 2018, 33(13): 3080-3088.
[17] Rylander T, Bondeson A.Stable FEM-FDTD hybrid method for Maxwell's equations[J]. Computer Physics Communications, 2000, 125(1): 75-82.
[18] Barron B R, Dai Weizhong.A hybrid FE-FD scheme for solving parabolic two-step micro heat transport equations in an irregularly shaped three-dimensional double-layered thin film[J]. Numerical Heat Transfer, Part B: Fundamentals, 2006, 49(5): 437-465.
[19] 刘里鹏. 流注放电的混合数值方法与解析模型研究[D]. 武汉: 华中科技大学, 2013.
[20] Morrow R, Lowke J.Streamer propagation in air[J]. Journal of Physics D: Applied Physics, 1997, 30(4): 614-627.
[21] Ebert U, Montijn D C.Photo ionization in negative streamers: fast computations and two propagation modes[J]. Applied Physics Letters, 2007, 90(8): 1-3.
[22] Georghiou G E, Morrow R, Metaxas A C.The effect of photoemission on the streamer development and propagation in short uniform gaps[J]. Journal of Physics D: Applied Physics, 2001, 34(2): 200-208.
[23] 焦重庆, 李明洋, 崔翔. 特高压气体绝缘开关设备套管的宽频等效电路建模[J]. 电工技术学报, 2016, 31(20): 64-72.
Jiao Chongqing, Li Mingyang, Cui Xiang.Broadband equivalent circuit model of bushing for gas insulated switchgear in ultra high voltage substation[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 64-72.
[24] 李鑫涛. SF₆/N₂和SF₆/CF₄放电机理及断路器介质恢复特性研究[D]. 沈阳: 沈阳工业大学, 2017.
[25] 夏亚龙. SF₆断路器中非平衡态等离子体电弧弧后介质恢复特性研究[D]. 沈阳: 沈阳工业大学, 2019.
[26] 杨文英, 刘兰香, 翟国富. 热场影响下新能源用接触器弹跳特性研究[J]. 电工技术学报, 2019, 34(22): 4687-4698.
Yang Wenying, Liu Lanxiang, Zhai Guofu.The bounce characteristics of contactors for new energy under the influence of thermal field[J]. Transactions of China Electrotechnical Society, 2019, 34(22): 4687-4698.