高压直流接地极对地表电位和跨步电压分布影响研究

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英文篇名：Study on the Influence of Ground Potential on Ground Surface and Step Voltage of High-Voltage DC 作者：陈伟 ; 吴训松 ; 曹斌 ; 喻圣 英文作者：CHEN Wei;WU Xun-song;CAO Bin;YU Sheng;College of Electrical Engineering & Renewable,China Three Gorges University;Fuzhou Power Supply Company,State Grid Jiangxi Electric Power Company; 关键词：接地极 ; 极环 ; 电位 ; 跨步电压 ; 埋深 ; 土壤 英文关键词：ground electrode;;pole ring;;potential;;step voltage;;duried depth;;soil 中文刊名：DILY 英文刊名：Journal of Electric Power 机构：三峡大学电气与新能源学院;国网江西省电力公司抚州供电公司; 出版日期：2019-02-25 出版单位：电力学报 年：2019 期：v.34;No.148 基金：国家自然科学基金(51507092) 语种：中文; 页：DILY201901007 页数：7 CN：01 ISSN：14-1185/TM 分类号：51-57

摘要

通过分析土壤电阻率和接地极极环自身参数对电位分布的影响,为工程实际提供理论依据。研究运用接地分析软件CDEGS来模拟分析地表电位分布的影响因素,以实际工程土壤简化模型,逐个分析相关参数具体对地表电位分布的影响,比较了不同形式接地极在不同埋深下地表电位和跨步电压的分布,得出双圆环接地极实用价值更大。基于分析结果,可为后续新建直流接地极设计选址及直流线路设计规划提供参考依据。
        This research analyzes the influence of soil resistivity and ground pole's own parameters on the potential distribution,and provides theoretical basis for engineering practice.In this paper,professional grounding analysis software CDEGS was used to simulate and analyze the influencing factors of surface potential distribution.With the actual engineering soil simplified model,the influence of related parameters on the surface potential distribution was analyzed one by one.The distribution of surface potentials and step voltage at different buried depths and types of grounding electrodes is compared,it is concluded that the double-ring grounding pole is more practical.Based on the analysis results,it can provide reference for the design and location of the new DC grounding electrode and the design and planning of the DC line.

引文

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