输电线动力学分析中的找形研究  

Form-Finding in Dynamics Analysis of Transmission Line

作　　者：孟遂民[1] 单鲁平[1] 

机构地区：[1]三峡大学机械与材料学院,湖北宜昌443002

出　　处：《电网与清洁能源》2009年第10期43-47,共5页Power System and Clean Energy

基　　金：三峡大学研究生科研创新基金资助项目(2009004)

摘　　要：输电线静态平衡位置找形是动力学分析的前提,找形精确与否对后续分析结果有很大影响。介绍了输电线找形中的解析法和有限元法,以某跨越档为例,分别对导线在自重和覆冰荷载下进行找形,着重分析了非均布荷载作用下这2种方法找形的差异。结果表明,均布荷载作用时,解析法和有限元法对导线静态平衡位置找形有相同的效果;非均布荷载作用时,有限元法得到的结果相对准确。The static equilibrium position form-finding is the premise of the dynamics analysis of the transmission line. and the precision of the form-finding will materially affect the resultant analysis. This paper introduces the analytic method and the finite element method used for the form-finding, anti taking alarge crossing span as an example, form-finding for conductors are made under the deadweight and with icing weight respectively, and it emphatically analyzes the differences of these two form-finding methods under the non-linear load. The results show that under the uniform distributed load, the analytic method and the finite element method have the same effect for the static equilibrium position form-findlng of the conductors while for the non-uniform load, the finite element method gives more accurate results.

关 键 词：找形 解析法 有限元法 几何非线性 

分 类 号：TM752[电气工程—电力系统及自动化] TU311[建筑科学—结构工程]