融冰绝缘地线对变电站雷电过电压的影响

doi:10.11930/j.issn.1004-9649.201608030

摘要/Abstract

摘要： 地线直流融冰采用了全线绝缘化设计，而地线绝缘化设计将对变电站雷电过电压产生影响。以500 kV融冰绝缘地线为例，介绍了融冰绝缘地线架设方式，采用 ATP-EMTP 软件建立500 kV变电站雷电侵入波过电压模型，分析了融冰绝缘地线架设对500 kV变电站雷电过电压的影响，总结了雷击点位置、杆塔接地电阻、避雷器配置方案对变电站设备雷电过电压的影响规律。研究结果表明：融冰绝缘地线架设对变电站设备最大过电压影响很小；雷击杆塔离变电站越近，变电站高压设备产生的过电压越大；母线避雷器对变电站设备保护效果较好，雷电侵入波产生的最大过电压下降较多；杆塔接地电阻越小，变电站设备最大过电压越小。其结论对涉及融冰绝缘地线变电站具有一定的参考价值。

关键词: 超高压输电线路, 直流融冰, 绝缘地线, 变电站, 雷电过电压, ATP-EMTP

Abstract: The ground wire using full insulation design is employed in the direct current (DC) melting ice technology. But the design of insulated ground wire will affect the largest over-voltage level of electrical equipment in substation. In this paper taking the actual 500 insulated ground wire as an example, the way of erected melting ice insulated ground wire was described. The insulated ground wire simulation model of 500 kV substation was established using ATP-EMTP simulation software. The influence of erection of the melting ice ground wire of 500 kV substation lightning overvoltage was analyzed. The influences law of the lightning-point distance, tower grounding resistance and arrester configuration on the lightning overvoltage of substation equipment were summarized. The results show that the melting ice insulated ground wire has little effects on the largest overvoltage of substation equipment. The closer of the lightning point to the substation is, the greater of over-voltage of substation equipment is. The bus arresters have well protective effects on the substation equipment. The largest overvoltage of substation equipment can be declined by using the bus arresters. The overvoltage level of substation equipment can decrease with the decrease of tower grounding resistance. The results can provide a certain reference to run and design the insulated ground wire in practice.

Key words: EHV AC, DC melting ice, insulated ground wire, substation, lightning over voltage, ATP-EMTP

中图分类号:

TM863

马御棠, 马仪, 曹晓斌, 黄然, 陈奎, 周仿荣. 融冰绝缘地线对变电站雷电过电压的影响[J]. 中国电力, 2018, 51(6): 96-101.

MA Yutang, MA Yi, CAO Xiaobin, HUANG Ran, CHEN Kui, ZHOU Fangrong. Analysis of the Lightning Overvoltage of Substation in Melting Ice Insulated Ground Wire System[J]. Electric Power, 2018, 51(6): 96-101.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201608030

https://www.electricpower.com.cn/CN/Y2018/V51/I6/96

参考文献

[1] 王海姣, 刘明光, 李宗垒. 变电站进线段应用避雷针保护的优势[J]. 高压电器, 2014, 50(2):68-74.WANG Haijiao, LIU Mingguang, LI Zonglei. Adopting lightning rod for protecting incoming line of transformer substation[J]. High Voltage Apparatus, 2014, 50(2):68-74.
[2] 胡伟, 陈勇, 万启发, 等. 三峡550 kV GIS的雷电冲击耐受试验方法[J]. 高电压技术, 2011, 37(4):883-887.HU Wei, CHEN Yong, WAN Qifa, et al. Test on lighting impulse withstand voltage of the three gorges right bank 550 kV GIS substation[J]. High Voltage Engineering, 2011, 37(4):883-887.
[3] 刘强, 谷定燮, 张元芳. 雷击杆塔塔顶时导线上感应电压敏感性分析[J]. 高电压技术, 2005, 31(3):31-33.LIU Qiang, GU Dingxie, ZHANG Yuanfang. Sensitivity analysis of lightning performance calculations for transmission lines[J]. High Voltage Engineering, 2005, 31(3):31-33.
[4] 胡伟涛. 500 kV HGIS雷电冲击试验击穿的原因分析[J]. 高压电器, 2013, 49(12):145-149.HU Weitao. Breakdown Analysis of a 500 kV HGIS equipment in lightning impulse test[J]. High Voltage Apparatus, 2013, 49(12):145-149.
[5] 刘青, 张玉峰, 程勇. 220 kV GIS变电站雷电过电压防护措施的研究[J]. 高压电器, 2008, 44(4):329-331.LIU Qing, ZHANG Yufeng, CHENG Yong. Research on protection against lightning over-voltage on transformer in a 220 kV GIS substation[J]. High Voltage Apparatus, 2008, 44(4):329-331.
[6] 匡洪海, 肖伸平. 500 kV变电站雷击保护的建模分析J]. 高压电器, 2008, 44(5):409-412.KUANG Honghai, XIAO Shenping. Modeling and analysis of lightning protection for 500 kV substation[J]. High Voltage Apparatus, 2008, 44(5):409-412.
[7] 陈仕龙, 曹蕊蕊, 毕贵红, 等. 基于形态学的特高压直流输电线路雷击干扰识别[J]. 中国电力, 2014, 47(10):40-46.CHEN Shilong, CAO Ruirui, BI Guihong, et al. Identification of UHVDC transmission line lightning disturbance based on morphology[J]. Electric Power, 2014, 47(10):40-46.
[8] 董家斌. 500 kV主变压器雷击事故分析[J]. 中国电力, 2014, 47(5):6-10.DONG Jiabin. Analysis of lightning outage for 500 kV main transformer[J]. Electric Power, 2014, 47(5):6-10.
[9] 王成亮, 王光亮, 包玉树. 一起变压器雷击故障的分析[J]. 中国电力, 2012, 45(12):66-70.WANG Chengliang, WANG Guangliang, BAO Yushu. Analysis on a transformer lightning accident[J]. Electric Power, 2012, 45(12):66-70.
[10] 张恒旭, 刘玉田, 张鹏飞. 极端冰雪灾害下电网安全评估需求分析与框架设计[J]. 中国电机工程学报, 2009, 29(16):8-14.ZHANG Hengxu, LIU Yutian, ZHANG Pengfei. Requirements analysis and framework design for power system security assessment considering extreme ice disasters[J]. Proceedings of the CSEE, 2009, 29(16):8-14.
[11] 黄新波, 刘家兵, 蔡伟, 等. 电力架空线路覆冰雪的国内外研究现状[J]. 电网技术, 2008, 32(4):23-28.HUANG Xinbo, LIU Jiabing, CAI Wei, et al. Present research situation of icing and snowing of overhead transmission lines in China and foreign countries[J]. Power System Technology, 2008, 32(4):23-28.
[12] 胡毅. 电网大面积冰灾分析及对策探讨[J]. 高电压技术, 2008, 34(2):215-219.HU Yi. Analysis and countermeasures discussion for large area icing accident on power grid[J]. High Voltage Engineering, 2008, 34(2):215-219.
[13] 侯慧, 尹项根, 陈庆前, 等. 南方部分500 kV主网架2008年冰雪灾害中受损分析与思考[J]. 电力系统自动化, 2008, 32(11):12-15.HOU Hui, YIN Xianggen, CHEN Qingqian, et al. Review on the wide area blackout of 500 kV main power grid in some areas of south China in 2008 snow disaster[J]. Automation of Electric Power Systems, 2008, 32(11):12-15
[14] 吴伯华, 张孝军, 方瑜. 超高压线路绝缘地线的研究[J]. 中国电力, 1997, 30(3):11-12.WU Bohua, ZHANG Xiaojun, FANG Yu. Study on the performance of insulated ground wire on EHV transmission lines[J]. Electric Power, 1997, 30(3):11-12.
[15] 刘青. 宝能220 kV GIS变电站雷电侵入波过电压的研究[J]. 高压电器, 2008, 44(2):142-144.LIU Qing. Research on lightning intruding waves in 220 kV Baoneng gas insulated substation[J]. High Voltage Apparatus, 2008, 44(2):142-144.
[16] 甘凌霞. 500 kV GIS变电站雷电过电压保护研究[J]. 高压电器2009, 45(6):110-114.GAN Lingxia. Lightning over-voltage protection for 500 kV GIS substation[J]. High Voltage Apparatus, 2009, 45(6):110-114.
[17] 向军, 周羽生, 郑剑武, 等. 1000 kV交流紧凑型输电变电站雷击侵入波分析[J]. 电瓷避雷器, 2012(3):67-76.XIANG Jun, ZHOU Yusheng, ZHENG Jianwu, et al. Analysis on lightning invasion waves of 1000 kV AC compact transmission substation[J]. Insulators and Surge Arresters, 2012(3):67-76.
[18] 袁兆祥, 周洪伟. 500 kV HGIS变电站雷电侵入波的计算分析[J]. 高电压技术, 2007, 33(6):71-75.YUAN Zhaoxiang, ZHOU Hongwei. Calculation and study of lightning intruding surge for 500 kV HGIS substation[J]. High Voltage Technology, 2007, 33(6):71-75.
[19] 刘渝根, 刘纬, 陈先禄. 500 kV变电站雷电侵入波研究[J]. 重庆大学学报(自然科学版), 2000, 23(3):17-19.LIU Yugen, LIU Wei, CHEN Xianlu. Research on lightning intruded wave for 500 kV substations[J]. Journal of Chongqing University (Natural Science Edition), 2000, 23(3):17-19.
[20] 陈奎, 曹晓斌, 吴广宁, 等. 超高压输电线路融冰绝缘地线单相短路电流分析[J]. 电网技术, 2014, 38(11):3266-3270.CHEN Kui, CAO Xiaobin, WU Guangning, et al. Analysis on single-phase short-circuit current in insulated ground wire during ice-melting of EHVAC transmission lines[J]. Power System Technology, 2014, 38(11):3266-3270.
[21] 相龙阳, 彭春华, 刘刚. 500 kV变电站雷电过电压的仿真研究[J]. 电力科学与工程, 2011, 27(2):30-35.XIANG Longyang, PENG Chunhua, LIU Gang. Simulation research on lightning over voltage of 500 kV substation[J]. Electric Power Science and Engineering, 2011, 27(2):30-35.
[22] 彭鹏, 粟时平, 颜勤. 变电站雷电侵入波保护的仿真分析[J]. 电力科学与技术学报, 2009, 24(3):49-53.PENG Peng, LI Shiping, YAN Qin. Simulation and analysis for substations lightning intruded wave protection[J]. Journal of Electric Power Science and Technology, 2009, 24(3):49-53.
[23] 陈梁金, 李文艺, 施围. 750 kV GIL-GIS系统雷电侵入波防护的研究, 高电压技术, 2005, 31(6):39-41.CHEN Liangjin, LI Wenyi, SHI Wei. Study on the protection of lightning intruding waves in 750 kV GIL-GIS system[J]. High Voltage Engineering, 2005, 31(6):39-41.