雨雾天气对导线电晕放电的影响分析  

Corona discharge analysis on transmission line with raindrop in rain and fog

作　　者：冯治国[1] 张爽[2] 杨嘉祥[1] 马凤莲[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040 [2]大庆油田电力集团供电公司龙南工区,黑龙江大庆163453

出　　处：《黑龙江电力》2010年第2期145-148,共4页Heilongjiang Electric Power

摘　　要：分析了雨雾天气高压输电导线上悬挂的水滴受电场力形变过程,对水滴引起的电场畸变进行了动态数值计算。计算结果表明:水滴受到重力和电场力的作用被拉长而曲率半径变小,最大场强值变大。解释了雨雾天气输电线路电晕放电变得强烈的原因。With the effect of electric field force and gravity, the shape of raindrop suspending on HV transmission line is changing. The shape changing process of raindrops is analyzed. The electric field distortion values caused by raindrop are calculated dynamically. The calculation results show that the maximum of electric field intensity in- creases when raindrops＇radii is becoming smaller because of lengthening. It gives a good explanation of the phe- nomenon that HV transmission lines＇corona discharge becomes very tense in rain and fog.

关 键 词：输电导线 水滴 电晕放电 电场畸变 

分 类 号：TM726[电气工程—电力系统及自动化]