导线交直流融冰电阻计算  

Conductor Resistance Calculation in AC/DC-based De-icing

作　　者：夏利霞[1] 张伟 梁皓澜 XIA Li-xia;ZHANG Wei;LIANG Hao-lan(College of Electrical&Information Engineering,Hunan Institute of Engineering,Xiangtan 411104,China)

机构地区：[1]湖南工程学院电气与信息工程学院,湘潭411104

出　　处：《湖南工程学院学报（自然科学版）》2020年第4期16-18,共3页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：为了有效地消除电网覆冰,交直流融冰技术得到广泛应用.当载交流电流时,导线电阻受趋肤效应影响.运用CDEGS软件计算了5种不同规格导线在6个频率下的电阻值.结果表明导线电阻随电流频率增加而增加.在50 Hz交流融冰中,导线受趋肤效应影响很小,其融冰效果与直流融冰没有明显差异.The study on characteristic curve of ambient temperature,wind velocity,conductor current,thickness of ice and time of de-icing is keystone in AC/DC-based de-icing technology.The conductor resistance is affeceed by skin effect when loading AC.The resistance value of five dimension conductors are calculated for six frequency AC by using the CDEGS software.The results show the conductor resistance value increases with increasing the frequency of AC.The skin effect doesn’t contribute much to the conductor resistance in AC-based de-icing,and there is no significant difference between AC-based de-icing and DC-based de-icing for the same specification conductor.

关 键 词：交流融冰 直流融冰 导线电阻 趋肤效应 

分 类 号：TM715[电气工程—电力系统及自动化]