Simulation Analysis of Tree Contact Incipient Fault in the Distribution Network Based on Magnetohydrodynamic
Cong Zihan1, Liu Yadong1, Yan Yingjie1, Fang Jian2, Jiang Xiuchen1
1. School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 China; 2. Guangzhou Power Supply Bureau Co. Ltd Guangzhou 510620 China
Abstract：In order to study the development characteristics of the tree contact incipient fault in the distribution network, based on the theory of magnetohydrodynamics, an arc simulation model is established, and the influence of separation speed and wind speed on the development process of arc is studied. The results show that the increase of the separation speed reduces the maximum temperature of the arc from 14 315.1K to 13 591.6K at the same moment. In addition, the peak value of the arcing peak and the extinguishing peak of the voltage waveform increase, the moment when the arcing peak appears is delayed and the extinguishing peak appears earlier. Wind will lengthen the arc and drive the arc root to move on the surface of the wire and branches. The moving distance of the arc root on the surface of the branches keeps increasing, while the moving distance on the surface of the wire shows a trend of first increasing and then decreasing. As the wind speed increases, the temperature of the arc drops rapidly, and its duration is shortened, and it cannot even last for a power frequency cycle at a wind speed of 20m/s.
丛子涵, 刘亚东, 严英杰, 方健, 江秀臣. 基于磁流体动力学的配电线路树-线早期故障仿真分析[J]. 电工技术学报, 2020, 35(zk2): 562-568.
Cong Zihan, Liu Yadong, Yan Yingjie, Fang Jian, Jiang Xiuchen. Simulation Analysis of Tree Contact Incipient Fault in the Distribution Network Based on Magnetohydrodynamic. Transactions of China Electrotechnical Society, 2020, 35(zk2): 562-568.
[1] 李天友, 徐丙垠, 薛永端. 配电网高阻接地故障保护技术及其发展[J]. 供用电, 2018, 35(5): 2-6, 24. Li Tianyou, Xu Bingyin, Xue Yongduan.High-impedance fault protection of distribution networks and its development[J]. Distribution & Utilization, 2018, 35(5): 2-6, 24. [2] 王宾, 崔鑫, 董新洲. 配电线路弧光高阻故障检测技术综述[J]. 中国电机工程学报, 2020, 40(1): 96-107, 377. Wang Bin, Cui Xin, Dong Xinzhou .Overview of arc high impedance grounding fault detection technologies in distribution system[J]. Proceedings of the CSEE, 2020, 40(1): 96-107, 377. [3] Elkalashy N I, Lehtonen M, Darwish H A, et al.Modeling and experimental verification of high impedance arcing fault in medium voltage networks[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2007, 14(2): 375-383. [4] Wischkaemper J A, Benner C L, Russell B D.Electrical characterization of vegetation contacts with distribution conductors - Investigation of progressive fault behavior[C]//Transmission and Distribution Conference and Exposition, Chicago, IL, USA, 2008: 181-188. [5] 王宾, 耿建昭, 董新洲. 配网高阻接地故障伏安特性分析及检测[J]. 中国电机工程学报, 2014, 34(22): 3815-3823. Wang Bin, Geng Janzhao, Dong Xinzhou.Analysis and detection of volt-ampere characteristics for high impedance faults in distribution systems[J]. Proceedings of the CSEE, 2014, 34(22): 3815-3823. [6] 邱进, 崔鑫, 田野, 等. 小电流接地配电线路弧光高阻接地故障电压特征分析[J]. 电力系统保护与控制, 2019, 47(16): 115-121. Qiu Jin, Cui Xin, Tian Ye, et al.Analysis of the arc high impedance grounding faults voltage characteristics in non-effective grounding feeders[J]. Power System Protection and Control, 2019, 47(16): 115-121. [7] 任伟, 薛永端, 杨帆, 等.中性点不接地配电网电弧接地故障建模与分析[J/OL]. 电网技术, https: //doi. org/10. 13335/j. 1000-3673. pst. 2019. 2509. Ren Wei, Xue Yongduan, Yang Fan, et al.Modeling and analysis of arc grounding faults in isolated neutral distribution network[J]. Power System Technology, https: //doi. org/10. 13335/j.1000-3673.pst.2019.2509. [8] 韦明杰, 张恒旭, 石访, 等. 基于谐波能量和波形畸变的配电网弧光接地故障辨识[J]. 电力系统自动化, 2019, 43(16): 148-161. Wei Mingjie, Zhang Hengxu, Shi Fang, et al.Identification of arcing grounded fault in distribution network based on harmonic energy and waveform distortion[J]. Automation of Electric Power Systems, 2019, 43(16): 148-161. [9] 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. [10] 杨明波, 龙毅, 樊三军, 等. 基于组合Mayr和Cassie电弧模型的弧光接地故障仿真及分析[J]. 电测与仪表, 2019, 56(10): 8-13. Yang Mingbo, Long Yi, Fan Sanjun, et al.Simulation and analysis of arc grounding fault based on combined Mayr and Cassie arc models[J]. Electrical Measurement & Instrumentation, 2019, 56(10): 8-13. [11] 王宾, 倪江, 王海港, 等. 输电线路弧光高阻接地故障单端测距分析[J]. 中国电机工程学报, 2017, 37(5): 1333-1341. Wang Bin, Ni Jiang, Wang Haigang, et al.Single-end fault location for high impedance arc grounding fault in transmission line[J]. Proceedings of the CSEE, 2017, 37(5): 1333-1341. [12] 王宾, 梁晨光, 李凤婷. 计及间隙长度的弧光接地故障建模及单端测距[J]. 中国电机工程学报, 2019, 39(4): 1001-1008. Wang Bin, Liang Chenguang, Li Fengting.Arc modeling and single-end fault location for arc grounding fault in transmission line considering arc gap length[J]. Proceedings of the CSEE, 2019, 39(4): 1001-1008. [13] Wu Yi, Rong Mingzhe, Sun Zhiqiang, et al.Numerical analysis of arc plasma behaviour during contact opening process in low-voltage switching device[J]. Journal of Physics D-Applied Physics, 2007, 40(3): 795-802. [14] Wang Lijun, Jia Shenli, Shi Zongqian, et al.High-current vacuum arc underaxial magnetic field: numerical simulation and comparisons with experiments[J]. Journal of Applied Physics, 2006, 100(11): 313-323. [15] Zhai Guofu, Bo Kai, Chen Mo, et al.Investigation on plasma jet flow phenomena during DC air arc motion in bridge-type contacts[J]. Plasma Science and Technology, 2016, 18(5): 485-489. [16] 林铭, 杨庆贤, 饶久平, 等. 木材热物理参数理论表达式的推导及其计算值与实测值比较[J]. 福建农林大学学报(自然科学版), 2015, 44(6): 646-650. Lin Ming, Yang Qingxian, Rao Jiuping, et al.Derivation of a new expression for wood thermophysics parameters and comparison to experimental value[J]. Journal of Fujian Agriculture and Forestry University (Natural Science Edition), 2015, 44(6): 646-650. [17] Yos J.Revised transport properties for high temperature air and its components[D]. Massachusetts: Avco Space Systems Division, 1967. [18] 颜湘莲, 陈维江, 贺子鸣, 等. 采用光谱诊断法测量长间隙空气电弧温度[J]. 中国电机工程学报, 2011, 31(19): 146-152. Yan Xianglian, Chen Weijiang, He Ziming, et al.Temperature measurement of air arc in long gap by spectrum diagnosis[J]. Proceedings of the CSEE, 2011, 31(19): 146-152. [19] 王巨丰, 郭伟, 梁雪, 等. 爆炸气流灭弧试验与灭弧温度仿真分析[J]. 高电压技术, 2015, 41(5): 1505-1511. Wang Jufeng, Guo Wei, Liang Xue, et al.Analysis of explosion airflow arc-extinguishing test and arc-extinguishing temperature simulation[J]. High Voltage Engineering, 2015, 41(5): 1505-1511.
2020, Vol. 35 
