电力架空线路覆冰雪的国内外研究现状

总结了国内外电力覆冰雪的研究现状，包括线路覆冰雪造成的危害，以及覆冰雪与气象因素之间的关系、覆冰雪增长预测模型、冰雪在线监测、线路除冰技术等方面的研究成果。文章还介绍了作者研发的输电线路冰雪在线监测系统的实际运行效果，并重点分析了转移负载法、短路法、交直流电流法等几种常见热力除冰方法的适用条件。

Present Research Situation of Icing and Snowing of Overhead Transmission Lines in China and Foreign Countries

The present research situation of icing and snowing of overhead transmission lines in China and other countries are summarized,including the research findings in the damage caused by icing and snowing of overhead transmission lines,the relation between icing and snowing and meteorology,the forecasting model for growth of ice and snow coating,online monitoring of icing and snowing and de-icing technology for overhead lines.In this paper the practical running results of the online icing and snowing monitoring system for transmission lines that is developed by the authors are presented,and the applicable conditions of common thermal de-icing methods,such as load transfer method,artificial short-circuit method and so on,are emphatically analyzed.