Title :
Numerical Analysis on Wind-Induced Vibration of Long Span Power Transmission Towers
Author :
Gan Feng-lin ; Peng Yuan
Author_Institution :
Inst. of Archit. & Civil Eng., Northeast Dianli Univ., Jilin, China
Abstract :
A method for analyzing wind-induced vibrations of 1000kv Hanjiang ultrahigh voltage long span power transmission towers coupled with power lines is discussed in this paper. This paper also discusses the influence on response characteristics of differences in transmission support systems and differences between peak factors, computed from a time-series and from power spectrum density. Through the analysis of the data of dynamic characteristic and wind-induced response of the tower-transmission line system, the results of analysis show that differences in the way power transmission towers supported power lines have an influence on response characteristics, and peak factors computed from a time-series response are greater than those computed from power spectrum density.
Keywords :
design engineering; poles and towers; power cables; power transmission; time series; vibrations; dynamic characteristic; long span power transmission tower; peak factor; power lines; power spectrum density; time-series response; tower-transmission line system; transmission support system; ultrahigh voltage transmission line; wind-induced response; wind-induced vibration; Civil engineering; Couplings; Numerical analysis; Poles and towers; Power engineering computing; Power system modeling; Power transmission; Time series analysis; Voltage; Wind speed;
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
DOI :
10.1109/ICISE.2009.789
