摘要
输电线路的持续覆冰会导致输电线路严重受损,以致电网部分或全网停运。介绍了几种主要电能融冰方法的原理、应用现状和前景。实际应用表明直流融冰、交流短路融冰、过负荷融冰(运行方式融冰)是三种可行和实用的方法,其中以直流融冰技术最为有效。总结了直流融冰技术在我国的研究和实际应用效果,并提出该技术进一步推广应用急需解决的主要技术问题。
Ice-clad transmission lines can seriously damage a power grid as to cause its partial or whole breakdown.The principles,application status and prospect of some main deicing methods are introduced in this paper.The practical application shows that the methods of DC deicing,AC short-circuit deicing and over-load deicing are feasible and useful,and the DC deicing method has become the most effective means to prevent ice disaster of the power grid.The research and application effects of DC deicing technology in China are reviewed,and the main technology issues in its further popularization and application are presented.
出处
《南方电网技术》
2012年第3期33-37,共5页
Southern Power System Technology
基金
国家自然科学基金资助项目"直流融冰技术应用于现代电网关键问题研究"(51177068)
"十一五"国家科技支撑计划资助项目"电网抵御极端天气灾害关键技术及装置开发与应用"(2009BAA23B00)~~
关键词
输电线路
覆冰
直流融冰
交流短路融冰
运行方式融冰
transmission line
ice-clad
DC deicing
AC short-circuit deicing
over-load deicing
