某地区覆冰对高压输电线路的影响  

Influence of Icing on High-Voltage Transmission Line in Some Area

作　　者：张源 雷明振 蔡鸿吉 ZHANG Yuan;LEI Mingzhen;CAI Hongji(Liuzhou Branch of China Southern Power Grid Extra High-Voltage Power Transmission Company,Liuzhou,Guangxi 545006,China)

机构地区：[1]中国南方电网超高压输电公司柳州局,广西柳州545006

出　　处：《自动化应用》2023年第18期140-142,共3页Automation Application

摘　　要：我国天气情况比较复杂,容易对电网安全尤其是高压输电线路产生不利影响,其中,覆冰的影响最为突出。本文分析了高压输电线路积冰的5种形态:雨凇、雾凇、湿雪、混合积冰和霜,得出某地区高压输电线路积冰种类主要以雾凇为主,极值在3月份最多的结论。某地区高压输电线路积冰最大厚度一般在21~66mm,大多在30~45 mm,雾凇、湿雪的分布特征均为山区多于平原,湿区多于干区等特性。The weather conditions in China are relatively complex,which can easily have adverse effects on the safety of the power grid,especially on high-voltage transmission lines.Among them,the impact of icing is the most prominent.This paper analyzes the five forms of ice accumulation on high-voltage transmission lines:Silver thaw,rime,wet snow,mixed ice accumulation,and frost.It is concluded that the main type of ice accumulation on high-voltage transmission lines in a certain area is fog,with the highest extreme value in March.The maximum thickness of ice accumulation on high-voltage transmission lines in a certain area is generally 21~66 mm,mostly 30~45 mm.The distribution characteristics of rime and wet snow are more in mountainous areas than in plains,and more in wet areas than in dry areas.

关 键 词：覆冰 高压输电线路 冰区划分 雾凇 

分 类 号：TM216[一般工业技术—材料科学与工程] TM75[电气工程—电工理论与新技术]