湖北省输电线路覆冰导线舞动灾害的一种气象甄别方法

摘要

Analysis is conducted on the fault data on ice coating and galloping in the national electric trans-mission lines,thus a screening method is offered on the fault data of ice coating and galloping based on the meteor-ological factors and conditions causing ice coating and galloping and analysis on the atmospheric circulation paths and the specific analysis steps is given by taking Hubei as an example.On this basis,analysis is conducted on the spatial and temporal distributioncharacteristics of ice coating and galloping and the results show that there are re-markable differences in the national ice coating and galloping disaster.As for time,such disaster mainly takes place in the end of theautumn and early of spring in the Northern Area and mainly in December,January and Feb-ruary in the Central China.As for space,it often occurs on the line from Liaoning to Shandong to Henan-Hubei and mainly in the plains as well.%通过对全国输电线路覆冰导线舞动故障资料的分析，给出一种基于气象要素条件和大气环流路径解析的覆冰导线舞动故障资料甄别方法，并以湖北为典型案例，给出了具体的分析步骤。在此基础上对覆冰导线舞动灾害时空分布特征进行分析，结果表明，全国覆冰导线舞动灾害具有显著的时空分布差异，时间上北方地区以秋末和春初为主，华中地区则是以冬季12、1、2月份为主，空间上易发生于辽宁—山东—河南—湖北省一线，且以平原地区为主。