气象因素对输变电线路电磁环境的影响  

The Influence of Meteorological Factors on the Electromagnetic Environment of Transmission Lines

作　　者：王灵志 董艳艳[1] 李薇[1] 王占生 WANG Lingzhi DONG Yanyan LI Wei WANG Zhansheng(Key Laboratory of Reginal Energy System Optimization （ North China Electric Power University）, Ministry of Education Beijing 102206)

机构地区：[1]华北电力大学区域能源系统优化教育部重点实验室,北京102206 [2]中国石油集团安全环保技术研究院,北京102206

出　　处：《工业安全与环保》2016年第10期32-34,95,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金面上项目(61471171);中央高校基本科研业务费专项资金资助(MS0128)

摘　　要：不考虑气象因素的输变电线路的电磁环境预测值与实际值之间有差距,探讨了温度、湿度、风等气象因素对输变电线路电磁环境的影响,并提出减缓措施。结果表明:温度上升,则电磁场强度及无线电干扰强度都会增强;高相对湿度下电磁场强度与湿度成正比,低湿度则无明显影响,湿度对无线电干扰的影响与线路电压有关;风使输电线发生偏移,改变空间电磁场强度。There is a certain gap between the predicted value regardless of meteorological factors and the actual value. Thus,how power frequency electromagnetic field intensity and radio interference intensity change in power transmission and transformation area are discussed and the changes are caused by some meteorological factors,such as temperature,humidity,wind and so on. In addition,some relevant measures are put forward. The results show that the electromagnetic field intensity and radio interference intensity will be enhanced when temperature rises. The electromagnetic field intensity is proportional to humidity in high relative humidity while there is no obvious relationship between them in low relative humidity,and the influence of humidity on radio interference is related to line voltage.In addition,the space magnetic field intensity will change when wind deflects transmission lines.

关 键 词：工频电磁场 无线电干扰 气象因素 减缓 

分 类 号：TM75[电气工程—电力系统及自动化] P49[天文地球—大气科学及气象学]