Configuration Method and Test Verification for Equalizing Resistance of HVDC Earth Electrode Considering Anisotropy of Soil Resistivity Distribution

TAN Bo; DONG Xiaohui; LIU Mingya; BI Sheng; YANG Jie; TONG Xuefang; WANG Xianghan

doi:10.13296/j.1001-1609.hva.2021.05.020

您当前的位置：

首页 >

文章列表页 >

Configuration Method and Test Verification for Equalizing Resistance of HVDC Earth Electrode Considering Anisotropy of Soil Resistivity Distribution

更新时间：2025-04-26

- Configuration Method and Test Verification for Equalizing Resistance of HVDC Earth Electrode Considering Anisotropy of Soil Resistivity Distribution
- High VoltageApparatus Vol. 57, Issue 5, Pages: 144-150(2021)
- 作者机构：
  
  1. 中国电力科学研究院有限公司武汉分院
  2. 三峡大学电气与新能源学院
  3. 国网电力科学研究院武汉南瑞有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.05.020
  CLC： TM862
- Published：2021
- 稿件说明：
移动端阅览
[1]谭波,董晓辉,刘鸣亚,毕晟,杨杰,童雪芳,王湘汉.考虑土壤电阻率分布各向异性的高压直流接地极均流电阻配置方法及试验验证[J].高压电器,2021,57(05):144-150.

TAN Bo, DONG Xiaohui, LIU Mingya, et al. Configuration Method and Test Verification for Equalizing Resistance of HVDC Earth Electrode Considering Anisotropy of Soil Resistivity Distribution[J]. High voltageapparatus, 2021, 57(5): 144-150.
[1]谭波,董晓辉,刘鸣亚,毕晟,杨杰,童雪芳,王湘汉.考虑土壤电阻率分布各向异性的高压直流接地极均流电阻配置方法及试验验证[J].高压电器,2021,57(05):144-150. DOI： 10.13296/j.1001-1609.hva.2021.05.020.

TAN Bo, DONG Xiaohui, LIU Mingya, et al. Configuration Method and Test Verification for Equalizing Resistance of HVDC Earth Electrode Considering Anisotropy of Soil Resistivity Distribution[J]. High voltageapparatus, 2021, 57(5): 144-150. DOI： 10.13296/j.1001-1609.hva.2021.05.020.

摘要

在高压直流接地极工程中

加装均流电阻是改善地表电位分布

降低极址跨步电压的一种有效手段。然而

由于土壤电阻率分布的复杂性和各向差异性

采用理想的水平分层模型计算配置直流接地极的均流电阻往往存在较大的误差。针对此问题

文中提出了一种基于接地极特性参数实测值的均流电阻配置方法。该方法通过实际测量接地极极环各段的分流比例、接地电阻、互阻、自跨步电压系数、互跨步电压系数等参数

以此作为输入条件

将各段的跨步电压相等作为控制目标

计算获得均流电阻的配置方案。最后通过一个缩比接地极模型

对均流电阻配置方法及过程进行了模拟试验。试验表明

加装均流电阻后

场区的最大跨步电压降低了31%

效果显著

验证了均流电阻对降低跨步电压的有效性。

Abstract

In the HVDC earth electrode project

the installation of equalizing resistance is an effective means to improve the surface potential distribution and reduce the step voltage of the electrode site. However

due to the complexity and anisotropy of soil resistivity distribution

the big error is often existed in calculating the equalizing resistance of HVDC earth electrode by the use of ideal horizontal layer model. Aiming at this problem

in this paper

a kind of equalizing resistance configuration method based on the actually measured value of the characteristic parameters of HVDC earth electrode is proposed.In this method

the configuration scheme of equalizing resistance is obtained through actually measuring the shunt ratio

earthing resistance

mutual resistance

self and mutual step voltage coefficient at each stage and taking them as input condition as well as taking equalization of step voltage of each stage as control target. Finally

the equalizing resistance configuration method and process are simulated and tested by way of a scaled-down HVDC earth electrode model. It is shown by the test that after installing the equalizing resistor

the maximum step voltage in the site reduces by 31% and the result is remarkable

and the effectiveness of the equalizing resistance in reducing the step voltage is verified.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Discussion on Defining the Values of Related Parameters about Grounding Project

Analysis of a Hydro-electric Station Grounding Device Problems and Rebuilding Measures

Step Voltage Test and Simulation for 10 kV Distribution Grid Based on Artificial Short-circuit

Related Author

LI Jing-lu 1

ZHENG Rui-chen 2

YANG Ting-fang 1

LI Zhi-qiang 3

CAO Bin1

PEHG Yong2

YANG De-lun1

SHEN Yuan1

Related Institution

Changsha University of Science and Technology

Nanyang Electric Power Bureau

Shaoguan Electric Power Company

河南南阳473000

广东韶关512000

⁰