Analysis of Impact Effect of Power Transmission Tower-line System Subjected to Broken Wire of Transmission Line

曹丹京; 田利; 马瑞升

doi:10.13409/j.cnki.jdpme.2014.03.019

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Analysis of Impact Effect of Power Transmission Tower-line System Subjected to Broken Wire of Transmission Line

更新时间：2025-12-11

- Analysis of Impact Effect of Power Transmission Tower-line System Subjected to Broken Wire of Transmission Line
- Vol. 34, Issue 3, Pages: 365-369(2014)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2014.03.019
  CLC： M75;TU312
- Published：2014
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[1]曹丹京,田利,马瑞升.输电线断线对高压输电塔-线体系的冲击作用分析[J].防灾减灾工程学报,2014,34(03):365-369.

曹丹京, 田利, 马瑞升. Analysis of Impact Effect of Power Transmission Tower-line System Subjected to Broken Wire of Transmission Line[J]. 2014, 34(3): 365-369.
[1]曹丹京,田利,马瑞升.输电线断线对高压输电塔-线体系的冲击作用分析[J].防灾减灾工程学报,2014,34(03):365-369. DOI： 10.13409/j.cnki.jdpme.2014.03.019.

曹丹京, 田利, 马瑞升. Analysis of Impact Effect of Power Transmission Tower-line System Subjected to Broken Wire of Transmission Line[J]. 2014, 34(3): 365-369. DOI： 10.13409/j.cnki.jdpme.2014.03.019.

摘要

研究了输电线断线对高压输电塔-线体系的冲击作用。给出了断线前后的结构动力平衡方程。分别采用梁单元、杆单元和悬链线单元对输电塔、绝缘子和输电线进行了模拟。根据实际工程

考虑输电线的几何非线性建立了高压输电塔-线体系的三维有限元模型

并计算了输电塔的动力特性。根据分析方法及分析工况

分别研究了不同工况下断线对高压输电塔-线体系的冲击作用及安全度评定。研究结果表明

地线的断线冲击较小

应该考虑不同的导线断线组合情况;断两根导线的冲击值

接近于设计所取的安全系数;输电线断线对高压输电塔的冲击作用不可忽视。

Abstract

The impact effect of power transmission tower-line due to broken wire of transmission line is studied in this paper.Equations of dynamic equilibrium of structure before and after broken wire are given.The tower

the isolator and the transmission line are simulated by the beam element

truss element and catenary cable element

respectively.Considering the geometric nonlinearity of transmission line

the three-dimensional finite element model of the power transmission tower-line system is created based on a practical engineering and the dynamic characteristics of tower are calculated.Based on analysis method and cases

the impact effects of power transmission tower-line system under different cases of broken wire are researched

respectively.The results show that the impact effect of ground line is very small

and different combinations of broken wire of the conductor should be considered.The impact value under broken wire of two conductors is close to the safety factor of design.So the impact effect of power transmission tower subjected to broken wire can not be ignored.

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references

高压输电塔的断线分析和断线张力计算 [J]. 沈国辉,孙炳楠,叶尹,楼文娟. 浙江大学学报(工学版) . 2011(04)

输电线断线振荡研究 [J]. 李黎,夏正春,江宜城,梁政平. 工程力学 . 2008(06)

输电塔在线路断线作用下的动力响应 [J]. 夏正春,李黎,梁政平,段松涛. 振动与冲击 . 2007(11)

架空送电线路的电线力学计算[M]. 中国电力出版社 , 邵天晓著, 2003

悬索结构设计[M]. 中国建筑工业出版社 , 沈世钊等著, 1997

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