农网典型导线及杆塔抗冰能力分析  

Analysis on Ice-Coating Withstanding Ability of Typical Conductors and Towers in Rural Power Networks

作　　者：牛东晓[1] 刘壮志[2] 高雁[2] 杨红磊[2] 

机构地区：[1]华北电力大学,北京市昌平区102206 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2009年第18期176-181,共6页Power System Technology

摘　　要：选取农村配网中应用比例较大的3种型号导线以及4种典型杆塔作为分析对象,采用道亨铁塔设计软件和ANSYS有限元分析软件对导线、杆塔在不同档距、不同程度覆冰条件下的抗覆冰能力进行计算分析。结果表明,农网导线与杆塔已具备一定的抗覆冰能力,但仍存在导线截面偏小、杆塔局部部位薄弱等导致抗冰能力不足的问题。最后提出了加强农网导线与杆塔抗覆冰能力的措施,可为今后农村配网线路抗覆冰设计提供参考。Three types of conductors and four kinds of towers that are widely applied in rural distribution network are selected as the analysis objects. Using Dao Heng tower design software and finite element analysis software ANSYS, the ice-coating withstanding ability of conductors and towers in rural distribution networks under different spans and various ice-coating conditions are analyzed and calculated. Calculation results show that the conductors and towers applied in rural distribution networks possess a certain ice-coating withstanding ability, however there are some defects such as insufficient sectional area of conductors and insufficient rigidity of some parts of towers, these defects lead to the insufficient ice-coating withstanding ability. Finally, some measures to enhance the ice-coating withstanding ability of conductors and towers in rural power networks are proposed.

关 键 词：农村配网 典型杆塔 抗覆冰能力 

分 类 号：TM726[电气工程—电力系统及自动化]