JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (4): 103-109.doi: 10.6040/j.issn.1672-3961.0.2017.100

Previous Articles     Next Articles

Difference calculation of grounding grid performance under different soil layered structures

TAO Yaguang1, LI Tianjiao2, TIAN Ye3, WANG Zhaojun3, CHENG Famin3, LI Qingquan1*   

  1. 1. Shandong Provincial Key Laboratory of UHV Transmission Technology and Equipment, Jinan 250061, Shandong, China;
    2. College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, Heilongjiang, China;
    3. Dongying Power Supply Company of State Grid Shandong Electric Power Company, Dongying 257000, Shandong, China
  • Received:2017-03-14 Online:2017-08-20 Published:2017-03-14

PDF (PC)

825

Abstract: In order to quantify the difference in safety performance of the substation grounding network under different soil structures as much as possible, based on the measured soil resistivity data, the substation ground network safety indicators, such as step voltage and touch voltage of the mountains, coastal and hilly areas under the vertical layered soil structure and the level layered soil structure were analysed, and the differences between regions in percentage were evaluated. The results showed that the soil vertical layered structure and horizontal layered structure could be accurately calculated by using current distribution, electromagnetic field and soil analysis(CDEGS)software,the necessity of considering vertical layered soil was explained by the contrast of step voltage and touch voltage under two kinds of soil structure in different regions,deviation percentage of touch voltage and step voltage near the soil interface part under vertical stratification structure were higher at the same area, and the calculation results of maximum deviation percentage showed that the difference caused by different soil layers structure was more obvious in the bigger resistivity region

Key words: ground network, soil stratification, vertical stratification, CDEGS, deviation percentage, soil interface

CLC Number: 

  • TM632
[1] 张波,何金良,曾嵘.电力系统接地技术现状及展望[J]. 高电压技术,2015,41(8):2569-2582. ZHANG Bo, HE Jinliang, ZENG Rong. State of art and prospect of grounding technology in power system[J]. High Voltage Engineering, 2015, 41(8):2569-2582.
[2] 何金良,曾嵘.电力系统接地技术[M]. 北京:科学出版社,2007:367-368.
[3] HAJIABOLI A, FORTIN S, DAWALIBI F P. Numerical techniques for the analysis of HVDC sea electrodes[J]. IEEE Transactions on Industry Applications, 2015, 51(6): 5175-5181.
[4] 赵志斌,崔翔,张波. 多层土壤中含有不同电阻率块状媒质时的接地网分析[J]. 中国电机工程学报,2004,24(9):218-223. ZHAO Zhibin, CUI Xiang, ZHANG Bo. Analysis of grounding systemsin multi-layer soil with finite volumes of different resistivities[J].Proceedings of the Chinese Society for Electrical Engineering, 2004, 24(9):218-223.
[5] 付龙海,吴广宁,王颢,等. 青藏铁路变电站接地网设计规则的提取[J]. 电工技术学报,2006,21(4):25-30. FU Longhai, WU Guangning, WANG Hao, et al. Automatically produce fuzzy rules in Qinghai-Tibet railway grounding grid design[J].Transactions of China Electrotechnical Society, 2006, 21(4): 25-30.
[6] FORTIN S, MITSKEVITCH N, DAWALIBI F P. Analysis of grounding systems in horizontal multilayer soils containing finite heterogeneities[J]. IEEE Transactions on Industry Applications, 2015, 51(6): 5095-5100.
[7] 潘卓洪,张露,谭波,等. 水平层状土壤接地问题的理论推导与数值分析[J]. 高电压技术,2011,37(4):860-866. PAN Zhuohong, ZHANG Lu, TAN Bo, et al. Theoretical derivation and numerical analysis for grounding computation of horizontal multi-layer soil[J]. High Voltage Engineering, 2011, 37(4):860-866.
[8] 何为,张瑞强,杨帆,等. 变电站内水平多层土壤参数反演[J].中国电机工程学报,2014,34(33):5964-5973. HE Wei, ZHANG Ruiqiang, YANG Fan, et al. Parameter estimation of horizontal multi-layer earth in substation[J]. Proceedings of the Chinese Society for Electrical Engineering,2014, 34(33): 5964-5973.
[9] PEREIRA W R, SOARES M G, NETO L M. Horizontal multilayer soil parameter estimation through differential evolution[J]. IEEE Transactions on Power Delivery, 2016, 31(2): 622-629.
[10] 潘卓洪,张露,刘虎,等. 多层水平土壤地表电位分布的仿真分析[J]. 高电压技术,2012,38(1):116-123. PAN Zhuohong, ZHANG Lu, LIU Hu, et al. Simulation and analysis of earth surface potential distribution in horizontal multi-layer soil[J].High Voltage Engineering, 2012, 38(1):116-123.
[11] ZHANG B, CUI X, LI L. Parameter estimation of horizontal multilayer earth by complex image method[J]. IEEE Transactions on Power Delivery, 2005, 20(2):1394-1401.
[12] DAWALIBI F, BLATTNER C J. Earth resistivity measurement interpretation techniques[J]. IEEE Transactions on Power Apparatus and Systems, 1984, 103(2): 374-382.
[13] VISACRO S, ALIPIO R. Frequency dependence of soil parameters: experimental results, predicting formula and influence on the lightning response of grounding electrodes[J]. IEEE Transactions on Power Delivery, 2012, 27(2): 927-934.
[14] 朱时阳,袁涛,朱彬.分层土壤中接地装置冲击散流特性的有限元模型[J].电网技术,2014,38(8):2304-2309. ZHU Shiyang, YUAN Tao, ZHU Bin. Finite element model of impulse dispersing characteristics of grounding equipment in layered soil[J]. Power System Technology, 2014, 38(8):2304-2309.
[15] CALIXTO W P, NETO L M, WU M, et al. Parameters estimation of a horizontal multilayer soil using genetic algorithm[J]. IEEE Transactions on Power Delivery, 2010, 25(3): 1250-1257.
[16] 赵志斌,索志刚. 复杂测试条件下分层土壤模型的建立[J]. 高电压技术,2011,37(5):1281-1287. ZHAO Zhibin, SUO Zhigang. Model of mult-ilayer soil structure on complex measurement condition[J]. High Voltage Engineering, 2011, 37(5): 1281-1287.
[17] NAYEL M, LU B, TIAN Y, et al. Study of soil resistivity measurements in vertical two-layer soil model[C] //Proceedings of Power and Energy Engineering Conference(APPEEC), 2012 Asia-Pacific.Shanghai, China: IEEE, 2012: 1-5.
[18] 沈海滨,康鹏,边凯,等.10 kV 配电线路钢筋混凝土电杆接地特性试验研究[J].电网技术,2014,38(6):1670-1675. SHEN Haibin, KANG Peng, BIAN Kai, et al. Experimental study on grounding characteristics of reinforced concrete poles for 10 kV distribution lines[J].Power System Technology, 2014, 38(6):1670-1675.
[19] 柴艳莉. 基于三层土壤模型的水电站接地系统优化研究[D].重庆:重庆大学,2012. CHAI Yanli. The grounding system optimization of hydropower station based on the three-layer soil model[D]. Chongqing: Chongqing University, 2012.
[20] 陈智.山岩地区复杂地形杆塔接地电阻降阻措施研究[D].长沙:长沙理工大学,2012. CHEN Zhi. Research on tower grounding resistance reduction measures in complex terrain of mountain area[D]. Changsha: Changsha University of Science & Technology, 2012.
[21] 麦杰恒.高土壤电阻率地区变电站接地网长效降阻的实现[J].广东电力,2004,17(2):45-48. MAI Jieheng. Realization of long-acting resistance reduction for grounding system in substation with high soil resistivity[J].Guangdong Electric Power, 2004, 17(2):45-48.
[22] 段旭,王彦辉,程积民. 宁夏固原云雾山天然草坡土壤电阻率和含水率的关系及其空间变异[J]. 农业工程学报,2012,28(7):130-137. DUAN Xu, WANG Yanhui, CHENG Jimin, et al. Spatial variation and relationship of soil resistivity and water moisture on typical grass slopes of Yunwu Mountains[J]. Transactions of the Chinese Society of Agricultural Engineering, 2012, 28(7): 130-137.
No related articles found!
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright 2018 © Editorial office of Journal of Shandong University (Engineering Science)
Supported by Beijing Magtech Co.Ltd