Effect of damping spacers and double-swinging protectors on iced galloping properties for UHV overhead transmission lines

被引：0
|
作者：
Zhao B. [1 ]
Cheng Y. [1 ]
Wang J. [1 ]
Liu B. [1 ]
Chen Y. [2 ]
机构：
[1] China Electric Power Research Institute, Beijing
[2] School of Mechanical Engineering, Tianjin University, Tianjin
来源：
Gaodianya Jishu/High Voltage Engineering | 2016年 / 42卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Damping spacer of UHV transmission lines; Double-swinging protector of UHV transmission lines; Ice galloping; Large-section conductor; Multi-bundled conductor; Nonlinear dynamic;
D O I：
10.13336/j.1003-6520.hve.20161128017
中图分类号：
学科分类号：
摘要：
As frequently-used anti-galloping devices,damping spacers and double-swinging protectors were heavily applied to UHV overhead transmission lines. In order to analyze and evaluate the influence of both types of devices on galloping of iced large-section and bundled conductors, Dirac function and the modeling method of curved beam were both introduced to define their characteristic of distribution along the wire with large cross section. The results show that parameter optimization and installation would affect the distributed mass, damping characteristics, and other structure parameters of UHV transmission line, and then it would change its galloping properties. Optimization of the design and arrangements of this kind of anti-galloping fittings could not only improve the critical wind speed of UHV conductor system to enhance its capacity of wind resistance, but also suppress vibration of UHV conductors in the situation that actual wind speed is slightly larger than the critical wind speed. It provides that theoretic reference for the optimization design as well as arrangements of anti-galloping fittings for UHV overhead transmission lines. © 2016, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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收藏
页码：3837 / 3843
页数：6
相关论文
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