500 kV输电线路区段固定式直流地线融冰方案应用研究  

Research on the application of sectional fixed DC ground wires de-icing method for 500 kV transmission lines

作　　者：郝夏鹏 张要强 苗栋 唐华 郭华栋 张星 HAO Xiapeng;ZHANG Yaoqiang;MIAO Dong;TANG Hua;GUO Huadong;ZHANG Xing(State Grid HeNan Energy Interconnection Power Design Institute Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]国网河南能源互联网电力设计院有限公司,河南郑州450000

出　　处：《电气应用》2025年第4期126-131,共6页Electrotechnical Application

摘　　要：随着全球气候的变化,架空输电线路覆冰问题频发,严重影响电网的安全运行。直流地线融冰技术是一种有效解决因线路覆冰而导致铁塔受损、倒塌和断线等事故的方法。以河南500 kV汉郑线124#~149#为研究对象,针对实际情况,对融冰方案比较、融冰接线方式选取、融冰电流选取和地线融冰站选址等问题进行深入研究与分析,提出最合理的区段固定式直流地线融冰技术方案,率先完成全国首个交流超高压线路地线融冰项目,为后续交流超高压输电线路地线融冰的设计提供参考。With the change of global climate,the problem of overhead transmission line icing occurs frequently,which seriously affects the safe operation of power grid.DC ground ice melting technology is an effective method to solve the accidents caused by the ice covering of the line,such as tower damage,collapse and line breaking.In this paper,124-149 of 500 kV Hanzheng Line in Henan Province is taken as the research object.According to the actual situation,in-depth research and analysis are carried out on the ice-melting scheme comparison,ice-melting wiring mode selection,ice-melting current selection,ground ice melting station location,etc.,the most appropriate Sectional Fixed DC ground wire ice melting technology scheme is proposed,taking the lead in completing the nation’s first AC ultra-high voltage line ground wire de-icing project,providing a reference for the design of subsequent AC ultra-high voltage transmission line ground wire de-icing.

关 键 词：500 kV输电线路 覆冰 区段固定式直流地线融冰 地线融冰站 

分 类 号：TM726[电气工程—电力系统及自动化]