500kV紧凑型线路导线非线性运动分析

研究了如何利用超高压输电线路紧凑化新技术，来提高输电线路单位走廊面积传输的电力容量。讨论了平原和山区两类气象条件下，对５００ ｋＶ 紧凑化线路导线的分析。应用了Ｎｅｗｍ ａｒｋ 方法对导线进行了非线性分析，及应用非线性有限元动力计算方法对相邻导线靠近的最小距离进行计算。得出相邻导线在外荷载特别是风荷载作用下的运动规律，从而确定如何设计安装间隔棒。计算结果表明，对５００ ｋＶ 紧凑化线路导线的非线性分析，得出的安装设计间隔棒的结论是可行的。

Nonlinear motion analysis on 500kV compact line conductor

The new compact technology of extrahigh voltage transmission line was analyzed and adopted to improve the power capacity per unit corridor area of transmitting lines. Non linear motion analysis on 500kV compact line conductor was carried out under the meteorological conditions of the plain and mountainous areas. Newmark method was applied to analyze theoretical results, and non linear finite method was applied to calculate the minimum space between two conductors in motion. Therefore the motion law on the neighbouring transmission line was obtained under the loads especially under the load of the wind. It provides the reliable bases for the design of the compact line conductor spacing and for the installation of spacing rods. The results show that the theory how to design and install spacing rods is workable.