基于ATP-Draw的双层土壤中杆塔接地装置冲击特性的仿真研究  

Simulation research on impulse characteristics of pole tower grounding device in double layer soil based on ATP-Draw

作　　者：周力行[1] 罗力之 刘宇彬 苏虹 刘瑾琪 邓裕文 ZHOU Lixing;LUO Lizhi;LIU Yubing;SU Hong;LIU Jinqi;DENG Yuwen(School of Electrical&Information Engineering,Changsha University of Science&Technology,Changsha 410114,China;State Grid Hunan Electric Power Company Economic Research Institute,Changsha 410000,China;Loudi Electric Power Corporation,Loudi 417700,China)

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410114 [2]国网湖南省电力公司经济研究院,湖南长沙410000 [3]国网娄底供电公司,湖南娄底417700

出　　处：《电力科学与技术学报》2022年第5期191-197,共7页Journal of Electric Power Science And Technology

基　　金：国家自然科学基金(51777015);湖南电力有限公司依托工程基建新技术研究应用项目(HN-YTKY-XL04)。

摘　　要：为研究分层土壤对接地装置冲击散流特性的影响,本文提出一种基于ATP-Draw的双层土壤中杆塔接地装置冲击特性仿真方法。采用拉普拉斯方法计算双层土壤中的水平接地体、垂直接地体的接地电阻值,以及双层土壤结构下接地装置各部分链式电路模型的电导参数、电容参数、电感参数等,搭建复杂土壤中杆塔接地装置的ATP-Draw仿真模型,该模型能够实现分层土壤中输电线路杆塔接地装置雷电冲击特性的仿真分析及冲击接地电阻的准确计算,可用于杆塔接地系统设计。In order to study the influence of layered soil on the impulse current dispersing characteristics of grounding device.This paper proposes a simulation method for the impulse characteristics of the double-layer soil tower grounding device based on ATP-Draw.By using the Laplace method,the grounding resistance of the horizontal grounding body and the vertical grounding body in the double-layer soil are calculated.The conductivity parameters,capacitance parameters,and inductance parameters of each part of the chain circuit model of the grounding device under the double-layer soil structure are obtained.ATP-Draw simulation model of pole grounding device in complex soil is established.The proposed model can realize the simulation analysis of lightning impulse characteristics of transmission line pole grounding device in the sealed layer soil and the accurate calculation of impact grounding resistance.The contribution of this paper can be applied in the grounding system design of power transmission tower.

关 键 词：双层土壤 镜像法 接地体 ATP 冲击接地电阻 仿真 

分 类 号：TM75[电气工程—电力系统及自动化]