连续雷电冲击下典型杆塔接地装置冲击接地电阻分析
CSTR:
作者:
作者单位:

(1.湖南经研电力设计有限公司,湖南 长沙 410000;2.长沙理工大学电气与信息工程学院,湖南 长沙 410114)

通讯作者:

周力行(1962—),男,博士,教授,主要从事高电压与绝缘技术研究;E?mail:zlxztwyr@163.com

中图分类号:

TM862

基金项目:

湖南省战略性新兴产业科技攻关与重大科技成果转化项目(2018GK4002)


Impulse grounding resistance analysis of typical tower grounding device under continuous lightning impulse
Author:
Affiliation:

(1.The Research of Hunan Province Electric Power Design Limited,Changsha 410000,China; 2.School of Electrical & information Engineering, Changsha University of Science & Technology,Changsha 410114,China)

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    摘要:

    为分析连续雷电冲击下杆塔接地装置的冲击特性,对不同土壤、材料及形状的典型接地体进行连续冲击试验。在连续脉冲冲击下,随着冲击脉冲时间间隔的增大,二次冲击接地电阻由土壤击穿时的较低值增大,逐渐恢复到单脉冲冲击接地电阻;但在一定的时间间隔范围内,含水量较少的土壤中接地装置的二次冲击接地电阻明显大于单脉冲冲击接地电阻;不同形状及不同材料接地体的二次冲击接地电阻不同。在杆塔接地设计时应考虑连续雷电冲击下冲击接地电阻增大现象,综合考虑接地体的材料及其形状。基于实验结果,提出连续雷电冲击下杆塔接地系统的ATPDraw仿真建模方法,该方法能较好地模拟冲击接地火花效应和土壤击穿后土壤电阻率恢复过程。

    Abstract:

    In order to analyze the impulse characteristics of tower grounding device under continuous lightning impulse, continuous impact tests of typical grounding bodies with different soils, materials and shapes are carried out. Under continuous pulse impact, with the increase of impulse time interval, the secondary impact grounding resistance increases from the lower value at soil breakdown to the single pulse impact grounding resistance. However, within a certain time interval, the secondary impulse grounding resistance of grounding device in soil with less water content is significantly greater than that of single pulse impulse. The secondary impulse grounding resistances of grounding bodies with different shapes and materials are different. In the tower grounding design, the increase of impulse grounding resistance under continuous lightning impulse needs to be considered, and the material and shape of grounding body should be comprehensively considered. Based on the experimental results, the ATP Draw simulation modeling method of tower grounding system under continuous lightning impulse is proposed. This method achieves good effect when simulating the spark effect of impulse grounding and the recovery process of soil resistivity after soil breakdown.

    参考文献
    [1] 薛士敏,陈硕,顾诚,等.一种基于暂态量的柔性直流系统保护及雷击识别方法[J].电力系统保护与控制,2022,50(9):45?53. XUE Shimin,CHEN Shuo,GU Cheng,et al.A method for protection and lightning identification in a flexible DC system based on transient quantities[J].Power System Protection and Control,2022,50(9):45?53.
    [2] 刘宇晴,王晗钰,林子鉴,等.基于雷电记录与行波数据的雷击故障测距结果优化方法[J].电网与清洁能源2021,37(1):1?7. LIU Yuqing,WANG Hanyu,LIN Zijian,et al.An optimization method for lightning fault location results based on lightning records and traveling wave data[J]. Power System and Clean Energy,2021,37(1):1?7.
    [3] 郭蕾,古维富,刘彬,等.杆塔接地装置的冲击阻抗建模及应用[J].电工技术学报,2020,35(10):2239?2247. GUO Lei,GU Weifu,LIU Bin,et al.Impulse impedance modeling and application of tower grounding device[J].Journal of Electrical Technology,2020,35(10):2239?2247.
    [4] 罗东辉,袁涛,司马文霞,等.连续冲击电流作用下土壤放电通道体积特征参数提取方法及机理分析[J].高电压技术,2020,46(5):1791?1799. LUO Donghui,YUAN Tao,SIMA Wenxia,et al.Mechanism and method of volume parameter extraction of soil discharge channel under successive impulse currents[J].High Voltage Engineering,2020,46(5):1791?1799.
    [5] 毕洁廷,计及山谷深度的输电线路雷电绕击率三EGM研究[J],中国电力,2021,54(8):91?97. BI Jieting. Three dimensional EGM study on shielding failure rate of transmission lines considering canyon depth[J].Electric Power,2021,54(8):91?97.
    [6] 梅诚.雷电冲击下接地装置冲击降阻与散流优化研究[D].成都:西南交通大学,2019. MEI Cheng.Research on impact resistance reduction and dispersion optimization of grounding devices under lightning impulse[D].Chengdu:Southwest Jiaotong University,2019.
    [7] 王红坡.关于防雷接地中的冲击接地电阻分析[J].价值工程,2018,37(27):146?148. WANG Hongpo.Analysis of impact earthing resistance in lightning protection grounding[J].Value Engineering,2018,37(27): 146?148.
    [8] 杨鑫,王延夫,唐国栋,等.耦合地线在10 kV架空线路中的应用研究[J].高压电器,2022,58(12):92?101+108. YANG Xin,WANG Yanfu,TANG Guodong,et al. Research on application of coupled ground wire in 10 kV overhead line[J].High Voltage Apparatus,2022,58(12):92?101+108.
    [9] 肖微,胡元潮,阮江军,等.柔性石墨复合接地材料及其接地特性[J].电工技术学报,2017,32(2):85?94. XIAO Wei,HU Yuanchao,RUAN Jiangjun,et al.Flexible graphite composite electrical grounding material and its grounding application features[J].Transactions of China Electrotechnical Society,2017,32(2):85?94.
    [10] 陈一悰,赵壮民,李军浩.冲击电压下CVT传递特性及其缺陷故障检测研究[J].智慧电力,2022,50(8):89? 94+108. CHEN Yicong,ZHAO Zhuangmin,LI Junhao.Research on CVT transmission characteristics and defect fault detection under impulse voltage[J].Smart Power,2022,50(8):89?94+108.
    [11] 匡福志,李霞,钟湘平,等.山区配电线路塔位地形雷击风险分类[J].电力科学与技术学报,2021,36(4):66?72. KUANG Fuzhi,LI Xia,ZHONG Xiangping,et al.Classification of lightning strike risk for distribution line tower terrain in mountainous area[J].Journal of Electric Power Science and Technology,2021,36(4):66?72.
    [12] 魏睿,周力行,彭超敏,等.同相供电系统中负载突变时的电流检测方法[J].电力科学与技术学报,2020,35(4):147?153. WEI Rui,ZHOU Lixing,PENG Chaomin,et al.In phase change in load current monitoring method in power system research[J].Journal of Electric Power Science and Technology,2020,35(4):147?153.
    [13] 王巨丰,韩力,卢辛,等.基于气吹灭弧模型研究工频电弧发展及抑制机理[J].电测与仪表,2021,58(8):104? 109. WANG Jufeng,HAN Li,LU Xin,et al. Study on the development of power frequency arc and suppression mechanism based on gas?blown arc?extinguishing model[J].Electrical Measurement & Instrumentation,2021,58(8):104?109.
    [14] 宰红斌,刘云峰,卫栋,等.面向采空区的输电线路杆塔设计优化方法[J].电力工程技术,2021,40(4):182?188. ZAI Hongbin,LIU Yunfeng,WEI Dong,et al. Optimization method of transmission line tower design for goaf[J].Electric Power Engineering Technology,2021,40(4):182?188.
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引用本文

刘宇彬,雷川丽,唐利松,等.连续雷电冲击下典型杆塔接地装置冲击接地电阻分析[J].电力科学与技术学报,2023,38(1):243-248.
LIU Yubin, LEI Chuanli, TANG Lisong, et al. Impulse grounding resistance analysis of typical tower grounding device under continuous lightning impulse[J]. Journal of Electric Power Science and Technology,2023,38(1):243-248.

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  • 在线发布日期: 2023-04-10
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