Research on initial form-finding and galloping of ice-coated transmission conductors

Author

Cao, Huajin ; Li, Li ; Chen, Yuankun ; Xia, Zhengchun

Author_Institution

Hubei Key Lab. of Control Struct., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

3

fYear

2010

fDate

12-13 June 2010

Firstpage

113

Lastpage

116

Abstract

A high efficiency simplified finite element analysis method is presented to analyze the iced galloping, which is characterized by large amplitude vibrations of iced, multi-span, electrical transmission conductors. Based on ANSYS/LS-DYNA, the springs-transmission conductors model was established that springs were used to copy the actions of tower to transmission conductors, the Mixed form-finding method is presented and which take the initial form of fixing wires and icing load into count, numerical wind tunnel technology based on CFD numerical simulation is used to study the aerodynamic characteristics of the ice-coated conductor. A simplified galloping analysis method of multi-span transmission conductors was proposed and verified. Based on the 1000 kV Han River long-span power transmission tower line project, simplified calculation of transmission conductors galloping was performed.

Keywords

aerodynamics; computational fluid dynamics; conductors (electric); finite element analysis; overhead line mechanical characteristics; power overhead lines; wind tunnels; ANSYS; CFD numerical simulation; Han River long-span power transmission tower line; LS-DYNA; aerodynamic characteristics; amplitude vibration; electrical transmission conductor; finite element analysis; ice-coated transmission conductor; iced galloping; icing load; mixed form-finding method; multispan transmission conductor; numerical wind tunnel technology; springs-transmission conductor; Conductors; High definition video; Poles and towers; ANSYS/LS-DYNA; galloping; initial form-finding; simplified analysis; transmission conductors;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Communication Technologies in Agriculture Engineering (CCTAE), 2010 International Conference On

Conference_Location

Chengdu

Print_ISBN

978-1-4244-6944-4

Type

conf

DOI

10.1109/CCTAE.2010.5544395

Filename

5544395