高压架空输电线路防冰、融冰、除冰技术研究综述

Summary of research on anti-ice,ice melting and de-icing of high voltage overhead transmission lines

目前的防、融、除冰技术多样,但尚无明确的体系来划分三者间的区别。对以往的国内外防冰、融冰、除冰技术进行梳理归纳,划分高压架空输电线路防、融、除冰三大技术体系,并指出当前防、融、除冰技术发展需克服的一些难点。除此之外,介绍正在研究的自制热融冰导线、基于PTC(Positive Temperature Coefficient)材料的智能融冰导线方案以及目前部分地区已工程应用的地线融冰技术。最后,从“智能电网”中的“可适应、可自愈”角度出发,提出建设一体化防、融、除冰技术体系,并对融冰技术的下一步发展趋势进行了展望。

The current technologies for prevention,melting and deicing are diverse,but there is no clear system to distinguish the differences between the three.This paper sorts out the past domestic and foreign anti-icing,melting ice and de-icing technologies,and points out that the current development of anti-icing,melting and deicing technologies needs to overcome some difficulties.In addition,this paper introduces the self-made hot-melt ice wire that the team is studying,the concept of intelligent ice-melting wire based on Positive Temperature Coefficient(PTC)material,and the ground melting ice technology that has been applied in some areas.Finally,from the perspective of“adaptable and self-healing”in the“smart grid”,this paper proposes to build an integrated prevention,melting and deicing technology system,and discusses prospects for the next development trend of ice melting technology.