Study on the calculation method for dynamic wind deflection of transmission line in strong wind area

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Bao, Chengjia^1 ; Li, Peng^2 ; Niu, Xiaobing^1 ; Jie, Xiaozhou^1 ; Liu, Bin^2 ; Fang, Yong^1 ; Li, Yuming^1 ; Ru, Qiushi^1

Inspection and Repair Branch of State Grid Gansu Electric Power Company, Edit. Department, Lanzhou

730070, China^1

China Electric Power Research Institute, Beijing

100192, China^2

关键词: Calculation formula;    Deflection angles;    Dynamic finite element method;    Early warning;    Fluctuating wind;    Fluctuating wind velocity;    Generation method;    Spatial correlations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052068/pdf
DOI  :  10.1088/1755-1315/189/5/052068

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

In order to improve the design and early-warning accuracy for wind deflection of transmission line in strong wind area, it is necessary to calculate the dynamic wind deflection of transmission line in consideration of fluctuating wind effect. In this paper, the generation method for fluctuating wind velocity in consideration of spatial correlation is discussed, then the wind load on every element node of conductor is determined on the basis of the calculation formula for wind load, and finally the dynamic wind deflection angle of insulator and the dynamic wind deflection displacement of conductor is calculated by using the nonlinear dynamic finite element method.