高电压技术2012，Vol.38Issue(2)：469-475,7.
交流输电导线覆冰增长及临界防冰电流的试验研究
Experimental Research on the Icing Accretion and Its Critical Anti-icing Current for Conductors Under AC Condition
摘要
Abstract
The ice load on transmission lines and the load caused by iced conductor galloping can cause tower collapse and conductor breakage accidents,seriously threatening the safe operation of power system.In a large multi-function artificial climate chamber,we experimentally researched the icing growth and critical anti-icing current of different type conductors under different meteorological conditions,and obtained a curve of relationship between icing growth and time under different conditions.Moreover,we analyzed the factors affecting the growth of ice and anti-icing current on transmission lines.The research results show that the running current can reduce the growth rate of ice on conductors.And under the same icing condition,there is a rapid growth of ice on conductor with small diameter.The environmental temperature and wind velocity have a significant effect on ice accretion on transmission lines.And the ambient temperature will determine the type of ice on transmission lines.The conductor may anti-ice when the value of running current is large enough,which depends on the circumstance parameters.The research results can be used to reveal the mechanism of ice accretion on transmission lines.关键词
导线/交流/覆冰/增长过程/温度/风速/防冰Key words
conductor/AC/icing/accretion process/temperature/wind velocity/anti-icing分类
信息技术与安全科学引用本文复制引用
张志劲,黄海舟,蒋兴良,孙才新,胡建林..交流输电导线覆冰增长及临界防冰电流的试验研究[J].高电压技术,2012,38(2):469-475,7.基金项目
国家重点基础研究发展计划（973计划） （）
国家自然科学基金项目（50807056 （）
5021005）~~ （）
