环境参数对导线覆冰厚度影响的试验分析  

Experimental Research on Influence of Environmental Parameters on the Conductor Icing Thickness

作　　者：蒋兴良[1] 申强[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《高电压技术》2010年第5期1096-1100,共5页High Voltage Engineering

基　　金：国家重点基础研究发展计划(973计划)(2009CB724501);输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512708102)~~

摘　　要：2008年的冰灾给电力系统造成了严重的危害,研究环境参数对导线覆冰的影响在防冰抗冰研究工作中显得尤为重要。为此,在重庆大学人工气候室内完成了3种不同直径导线在不同风速、液态水含量(LWC)即液态水质量浓度、水滴中值体积直径(MVD)、环境温度等环境参数下的覆冰试验。分析了覆冰时间及4个环境参数对覆冰厚度的影响,研究表明,在湿增长条件下覆冰厚度基本不受MVD改变的影响,提出线路架设应避开高风速地区,建议人工气候室覆冰根据制冷系统效果选择最快覆冰的LWC和温度值。The power system was seriously harmed by the ice disaster in 2008,it is nessessary to research environmental parameters to affect conductor icing.The icing experiments of three kinds of different diameter conductors were performed in the Chongqing University artificial climate laboratory under the different conditions of air speed,liquid water content（LWC）,drop median volume diameter（MVD）,ambient temperature,etc.Icing time and the four environmental parameters affecting the ice thickness were analyzed.Results show that,in the wet growth conditions,ice thickness is hardly affected by the changes of MVD,and lines should be set up to avoid areas of high air speed.And the fastest icing values of temperature and LWC in artificial climate laboratory should be chosen by the effect of refrigerating system.

关 键 词：覆冰 厚度 温度 风速 中值体积直径 液态水含量 

分 类 号：TM852[电气工程—高电压与绝缘技术] TM855