[1]杜京义,周艳玲,赵向军,等.接地网腐蚀状态监测传感器的优化布置方法[J].西安科技大学学报,2017,(01):141-148.[doi:10.13800/j.cnki.xakjdxxb.2017.0121]
 DU Jing-yi,ZHOU Yan-ling,ZHAO Xiang-jun,et al.Optimal placement method of grounding grid corrosion state monitoring sensors[J].Journal of Xi’an University of Science and Technology,2017,(01):141-148.[doi:10.13800/j.cnki.xakjdxxb.2017.0121]
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接地网腐蚀状态监测传感器的优化布置方法(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2017年01期
页码:
141-148
栏目:
出版日期:
2017-01-30

文章信息/Info

Title:
Optimal placement method of grounding grid corrosion state monitoring sensors
文章编号:
1672-9315(2017)01-0141-08
作者:
杜京义周艳玲赵向军蔡 驰
西安科技大学 电气与控制工程学院,陕西 西安 710054
Author(s):
DU Jing-yiZHOU Yan-lingZHAO Xiang-junCAI Chi
College of Electrical and Control Engineering,Xi’an University of Science and Technology,Xi’an 710054,China
关键词:
接地网 三电极传感器 电场分布 有限元法 简化接地网
Keywords:
Key words:grounding grid three electrode sensor distribution of electric field finite element method simplified grounding grid
分类号:
TM 621.7
DOI:
10.13800/j.cnki.xakjdxxb.2017.0121
文献标志码:
A
摘要:
针对目前发变电站接地网的检测问题,常用的物理方法需大规模挖掘来检查接地网的腐蚀和断裂情况,不但影响发变电站的正常运行,还影响环境绿化,造成巨大的经济损失。设计了一种检测接地网腐蚀状态的三电极传感器; 提出了对接地网电位分布准确判断的有限元法,先利用有限元法对接地网及周围土壤建立三维有限元模型; 然后使用有限元软件ANSYS Maxwell对接地网模型进行计算,得到接地网中电场的分布情况; 最后在接地网电位相对较强和较弱的土壤区域埋设三电极传感器。结果表明:利用有限元法对接地网进行建模可以仿真出接地网的电场分布,找出接地网电位较高和较低的部分,有效地简化了接地网; 在不影响发变电站正常运行的情况下,根据传感器的腐蚀情况判断接地网的腐蚀情况,极大地降低了经济损失,具有实际可行的意义。
Abstract:
Abstract:Aiming at the grounding grid detection problem of power plant and substation,common physical method needs large-scale excavation to check corrosion and breakage of the grounding grid,which not only affect the normal operation of the substation,but also damage the environment greening,causing huge economic losses.In this paper,a three electrode sensor is designed to detect the corrosion of grounding grid and the finite element method is proposed to accurately determine the potential distribution of grounding grid,using the finite element method to build three-dimensional finite element modelfor grounding grid and surrounding earth; then use the finite element analysis software ANSYS Maxwell to calculate the grounding grid model and get the distribution of the electric field in the grounding grid; at last bury grounding grid corrosion detection sensors in the area where has relatively strong and weak grounding grid electric potential.The results show:using the finite element method model of grounding grid can simulate the distribution of the electric field,find out the higher and lower part of the grounding grid,and effectively simplify the grounding grid.In the case of without affecting the operation of substations,based on the corrosion state of sensors to judge the corrosion state of grounding grid,greatly reducing the economic losses,has a practical significance.

参考文献/References:

[1] 张丽萍,袁建生,李中新.变电站接地网模拟计算[J].中国电机工程学报,1999,19(5):76-79.ZHANG Li-ping,YUAN Jian-sheng,LI Zhong-xin.Simulation calculation of substation grounding systems[J].Proceedings of the Chinese Society for Electrical Engineering,1999,19(5):76-79.[2] Zheng R,He J,Hu J,et al.The theory and implementation of corrosion diagnosis for grounding system[C]//Industry Applications Conference 2002,37th IAS Annual Meeting,Pittsburgh(PA),US,2002(2):1 120.[3]Guemes J A,Hernando F E.Method for calculating the ground Resistance of grounding grids using FEM[J].IEEE Transactions on Power Delivery,2004,19(2):595.[4]Sverak J G.Progress in step and touch voltage equations of ANSI/IEEE Std 80-historical perspective[J].IEEE Transactions on Power Delivery,1998,13(3):762.[5]Dawalibi F P,Ma J,Southey R D.Behavior of grounding systems in multiplayer soils:a parametric analysis[J].IEEE Transactions on Power Delivery,1994,9(1):334.[6]陈锡栋,杨 婕,赵晓栋,等.有限元法的发展现状及应用[J].中国制造业信息化,2010,39(11):6-8.CHEN Xi-dong,YANG Jie,Zhao Xiao-dong, et al. The statusand development of finite element method[J].Machine Designand Manufacturing Engeering, 2010, 39(11):6-8.[7]鲁志伟,文习山,史艳玲,等.大型变电站接地网工频接地参数的数值计算[J].中国电机工程学报,2003,23(12):89-93.LU Zhi-wei,WEN Xi-shan,SHI Yan-ling,et al. Numericalcalculation of large substation grounding grid sin industryfrequency[J].Proceedings of The Chinese Society for Electrical Engineering,2003,23(12):89-93.[8]王天正,徐 霞,王鹏皓,等.接地网腐蚀检测方法及其应用前景[J].电气制造,2015(1):73-75.WANG Tian-zheng,XU Xia,WANG Peng-hao,et al.Corrosionof grounding grid detection method and its application prospect[J]. Electrical Manufacturing,2015(1):73-75.[9]闫爱军,邓 博,付纪华,等.碳钢接地网在土壤中的腐蚀机理研究[J].陕西电力,2013,41(6):65-67.YAN Ai-jun,DENG Bo,FU Ji-hua,et al.Corrosion mechanism ofcarbon steel grounding grid in soil[J].Shaanxi Electric Power,2013,41(6):65-67.[10][日]藤岛昭.电化学测定方法[M].北京:北京大学出版社,1995.Akira Fujishima. Electrochemical determination methods[M].Beijing:Peking University Press, 1995.[11]贾 铮,戴长松,陈 玲.电化学测量方法[M].北京:化学工业出版社,2007.JIA Zheng,DAI Chang-song,CHEN Ling.Electrochemicalmeasurement[M].Beijing:Chemical Industry Press, 2007.[12]关 星.基于DSP技术的电化学工作站的研究与设计[D].哈尔滨:哈尔滨理工大学,2007.GUAN Xing. The study and design on the eclectrochemicalpower measurement workstation[D].Harbin:Harbin University ofScience and Technology, 2007.[13]李 瑞.三电极电化学传感器等效电路模型的研究[D].大连:大连理工大学,2010.LI Rui. Study on equivalent circuit model of three-electrodeelectrochemical sensor[D].Dalian:Dalian University of Technology, 2010.[14]CHENG Qing-li,ZHANG Wei-hua,TAO Bin.Investigation of the electrochemical corrosion of copper under a micrometric electrolyte droplet using a three-electrode system[J].China Petroleum and Chemical Corporation Qingdao Safety Engineering Institute,2015(7):1 345-1 350.[15]Economou A,Bolis S D,Efstathiou C E,et al.A“virtual” electroanalytical instrument for square wave voltammetry[J].Analytica Chimica Acta,2002,467(1-2):179-188.

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备注/Memo

备注/Memo:
通讯作者:杜京义(1965-),男,山东淄博人,博士,教授,E-mail:517571853@qq.com
更新日期/Last Update: 1900-01-01