高电压技术2019，Vol.45Issue(4)：1131-1136,6.DOI:10.13336/j.1003-6520.hve.20180511004
基于人员体表场强的±800 kV特高压直流线路带电作业进入等电位的路径研究
Research of Entering Path for Live Work on ±800 kV UHV DC Transmission Lines by Body Surface Electric Field Strength
摘要
Abstract
To study the optimization of entering path for live work on ±800 kV UHV DC transmission lines, the electric field of the operator's surface during the process of equipotential was simulated. According to the actual situation of live work on ±800 kV UHV DC transmission lines, a simulation model was established by using the finite element analysis software ANSYS, and the distribution of the electric field intensity of human body in different positions was calculated and analyzed when the operator entered the equipotential along all possible paths. The results show that the electric field strength of human body surface continuously increases during the process of entering from 8 m away from the wire to 1 m from the wire, and the maximum value will reach 5.8 times the minimum value. The maximum electric field strength varied by 1.7 times for different paths. Compared the path of entering from the outside of crossarm with that from tower body, subtle difference in change of electric field intensity can be found. Horizontal entry from the tower body is the most reasonable entering path, where the maximum electric field strength is about 565.9 kV/m. The test data have verified the feasibility of the simulation method.关键词
UHV DC/输电线路/等电位带电作业/进入路径/电场强度Key words
UVH DC/transmission lines/equipotential live working/entering path/electric field strength引用本文复制引用
张亚迪,车彬,邱中华,彭勇,杜志叶,黄泽华..基于人员体表场强的±800 kV特高压直流线路带电作业进入等电位的路径研究[J].高电压技术,2019,45(4):1131-1136,6.基金项目
国家自然科学基金 (51477120) （51477120）
国家电网公司科技项目 (SGXN000AQJS160001) （SGXN000AQJS160001）
湖北省自然科学基金 (2016CFB448) （2016CFB448）
武汉市高新技术产业科技创新团队培养计划 (2016070204020165) （2016070204020165）
