覆冰输电线路脱冰跳跃及抑制方法研究

杨风利;杨靖波;李正;韩军科;付东杰

振动与冲击 ›› 2010, Vol. 29 ›› Issue (5) : 20-25,3.

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PDF(1809 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (5) : 20-25,3.
论文

覆冰输电线路脱冰跳跃及抑制方法研究

  • 杨风利;杨靖波;李正;韩军科;付东杰
作者信息 +

Study on the Ice Shedding and Vibration Suppression of Transmission Line

  • YANG Feng-li;YANG Jing-bo;Li Zheng;HAN Jun-ke;Fu Dong-jie
Author information +
文章历史 +

摘要

采用ANSYS建立铁塔—导线—地线—绝缘子—相间间隔棒的三维塔线系统有限元模型,考虑相间间隔棒棒芯直径、脱冰相位置及数量、覆冰厚度、脱冰档档距和高差等影响因素,完成了不同工况下的连续5档塔线系统脱冰跳跃动力分析,得到了导线跳跃高度、挂点不平衡张力和垂向荷载、铁塔杆件内力,确定了不同因素对相间间隔棒抑制效果的影响规律。针对单相导线脱冰的情况,综合抑制效果和经济性考虑,对4种相间间隔棒布置方案进行优化比选,确定了可有效抑制导线脱冰跳跃动力响应的最优布置方案。

Abstract

In this paper, a three dimensional finite element model of tower-conductor-ground wire-insulator-interphase spacer system was established in ANSYS, and the dynamic responses of ice shedding for a typical five span transmission line section under different cases were analyzed for transmission tower-line system. Many factors were considered in the ice shedding simulating analysis, which include the core diameter of the interphase spacer, the quantity and location of conductor phases, thickness of the accreted ice, length of the ice-shedding span as well as the elevation difference. The dynamic responses of jumping heights, unbalanced tension and vertical load at the end of the insulator, and the forces of transmission tower were obtained. Influences of all the factors on the suppressed efficiency of the interphase spacers were mainly studied. For the case of ice shedding of single phase conductor, four arrangement schemes of the interphase spacers were compared for the optimal scheme when considering the suppressed efficiency and the economical efficiency comprehensively. Lastly, the optimal arrangement scheme was determined which can suppress the ice-shedding responses.

关键词

塔线系统 / 脱冰跳跃 / 不平衡张力 / 相间间隔棒 / 布置方案

Key words

tower-line system / ice shedding / unbalanced tension / interphase spacer / arrangement scheme

引用本文

导出引用
杨风利;杨靖波;李正;韩军科;付东杰. 覆冰输电线路脱冰跳跃及抑制方法研究[J]. 振动与冲击, 2010, 29(5): 20-25,3
YANG Feng-li;YANG Jing-bo;Li Zheng;HAN Jun-ke;Fu Dong-jie. Study on the Ice Shedding and Vibration Suppression of Transmission Line [J]. Journal of Vibration and Shock, 2010, 29(5): 20-25,3

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