冰风荷载下导线脱冰动力响应分析及冰跳高度计算研究

孙君录; 陈彬; 徐志明; 贾颖; 丁梦喆; 何广源

doi:10.3969/j.issn.1008-0198.2026.03.017

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冰风荷载下导线脱冰动力响应分析及冰跳高度计算研究

电力防灾减灾 | 更新时间：2026-07-08

- 冰风荷载下导线脱冰动力响应分析及冰跳高度计算研究
- Dynamic Response Analysis of Conductor Ice-Shedding and Calculation Research of Ice Jump Height Un‍der Ice and Wind Loads
- 湖南电力 2026年46卷第3期页码：130-138
- 作者机构：
  
  1. 国网河南省电力有限公司平顶山供电分公司,河南,平顶山,467001
  2. 三峡大学电气与新能源学院,湖北,宜昌,443002
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1008-0198.2026.03.017
  中图分类号： TM752.5
- 网络首发：2026-07-07，
  
  纸质出版：2026
- 稿件说明：
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孙君录, 陈彬, 徐志明, 贾颖, 丁梦喆, 何广源. 冰风荷载下导线脱冰动力响应分析及冰跳高度计算研究[J]. 湖南电力, 2026, 46(3): 130-138.

SUN Junlu, CHEN Bin, XU Zhiming, et al. Dynamic Response Analysis of Conductor Ice-Shedding and Calculation Research of Ice Jump Height Un‍der Ice and Wind Loads[J]. 2026, 46(3): 130-138.
孙君录, 陈彬, 徐志明, 贾颖, 丁梦喆, 何广源. 冰风荷载下导线脱冰动力响应分析及冰跳高度计算研究[J]. 湖南电力, 2026, 46(3): 130-138. DOI： 10.3969/j.issn.1008-0198.2026.03.017.

SUN Junlu, CHEN Bin, XU Zhiming, et al. Dynamic Response Analysis of Conductor Ice-Shedding and Calculation Research of Ice Jump Height Un‍der Ice and Wind Loads[J]. 2026, 46(3): 130-138. DOI： 10.3969/j.issn.1008-0198.2026.03.017.

摘要

目前关于导线脱冰跳跃的研究主要集中在覆冰荷载的突变效应分析

局限于单一覆冰影响

忽视了风荷载作用

或简单采用设计规范中的标准风荷载值

对冰风荷载作用下的脱冰动力响应研究不足。针对此问题

进行冰风荷载下导线脱冰动力响应分析及冰跳高度计算研究

结合瞬态动力学与流体力学的仿真方法

计算新月形、D形截面、扇形截面、椭圆形四种典型覆冰截面形状的气动力系数及风荷载分布;建立输电线路的导线-绝缘子有限元模型

通过集中荷载法模拟覆冰及脱冰过程

计算不同风速、风攻角、覆冰截面下的导线脱冰跳跃高度和张力。结果表明：负升力风攻角下

导线跳跃高度高于无风状态

初始张力及脱冰最小动张力高于无风状态;正升力风攻角下则相反;不同截面导线的冰跳行为存在差异

椭圆形截面导线因承受更大风荷载而产生最大跳跃高度。

Abstract

At present

research on conductor ice-shedding jumping mainly focuses on the analysis of the abrupt effects of icing loads

which only consider single icing effects

neglecting the effect of wind loads

or merely using standard wind load values in design specifications

Thus

relevant researches on de-icing dynamic responses under ice and wind loads remain in adequate. In response to this issue

this paper conducts dynamic response analysis of conductor ice-shedding and calculation research of ice jump height under ice and wind loads. Combining the simulation methods of transient dynamics and fluid dynamics

the paper calculates the aerodynamic coefficients and wind load distribution of four typical ice cover section shapes:crescent

D-shaped

fan-shaped

and elliptical. A finite element model of the conductor-insulator of the transmission line is established. The de-icing and ice-jumping processes are simulated by the concentrated load method

and the de-icing jump height and tension of the conductor under different wind attack angles and ice-covered cross-sectional shapes are calculated. The results show that under the negative lift wind attack angle

the jump height of the conductor is higher than that in the windless state

and the initial tension and the minimum dynamic tension during de-icing are higher than those in the windless state. Under the positive lift wind attack angle

the opposite is true. The ice jumping behavior of wires has different cross-sections varies

and elliptical cross-section wires experiences the maximum jumping height due to bearing higher wind loads.

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references

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