科技创新与应用2024，Vol.14Issue(22)：62-64,69,4.DOI:10.19981/j.CN23-1581/G3.2024.22.015
架空地线直流临界融冰电流影响因素分析
摘要
Abstract
Ice disaster is one of the most serious disasters in power system,line icing will destroy and reduce the mechanical strength of towers,fittings and conductors,increase the load on transmission towers,and lead to frequent accidents such as line breakage and tower collapse,thus affecting the safety and stability of transmission line operation.The ice melting efficiency is related to the current.The higher the current is,the higher the efficiency is.However,for different wires,the ice-melting current must be limited by the maximum allowable temperature of the wire,the capacity of DC ice-melting device and the ice-melting distance of the line.Therefore,the calculation of critical ice-melting current is an important credential for ice-melting engineering.In this paper,the influence of wind speed,ice thickness and ambient temperature on the critical ice melting current of overhead ground wire is analyzed through the physical process of ice melting and finite element simulation software.There is a significant influence between wind speed and ambient temperature,and there is an approximate linear relationship between ice thickness and critical ice melting current.关键词
架空地线/直流融冰/有限元分析/热平衡过程/临界融冰电流Key words
overhead ground wire/DC ice-melting/finite element analysis/thermal balance process/critical ice melting current分类
航空航天引用本文复制引用
熊继开,程龙,王沐东,楚江平,李嗣,王爽,文中..架空地线直流临界融冰电流影响因素分析[J].科技创新与应用,2024,14(22):62-64,69,4.基金项目
国网湖北超高压公司科技资助项目(B71520230043) （B71520230043）
