Finite Element-Based Equivalent Loading Method for Conductor Icing Galloping Loads

LIN Jingjie; GAO Chao; QIU Gang; LI Tianran

doi:10.3969/j.issn.1008-0198.2026.01.004

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Finite Element-Based Equivalent Loading Method for Conductor Icing Galloping Loads

更新时间：2026-03-11

- Finite Element-Based Equivalent Loading Method for Conductor Icing Galloping Loads
- Vol. 46, Issue 1, Pages: 29-39(2026)
- 作者机构：
  
  1. 南京师范大学南瑞电气与自动化学院,江苏,南京,210023
  2. 国网江苏省电力有限公司,江苏,南京,210000
  3. 国网江苏省电力有限公司电力科学研究院,江苏,南京,210000
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1008-0198.2026.01.004
  CLC： TM752.5
- Online First：10 March 2026，
  
  Published：10 March 2026
- 稿件说明：
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林靖杰, 高超, 邱刚, 李天然. 基于有限元的导线覆冰舞动荷载等效加载方法[J]. 湖南电力, 2026, 46(1): 29-39.

LIN Jingjie, GAO Chao, QIU Gang, et al. Finite Element-Based Equivalent Loading Method for Conductor Icing Galloping Loads[J]. 2026, 46(1): 29-39.
林靖杰, 高超, 邱刚, 李天然. 基于有限元的导线覆冰舞动荷载等效加载方法[J]. 湖南电力, 2026, 46(1): 29-39. DOI： 10.3969/j.issn.1008-0198.2026.01.004.

LIN Jingjie, GAO Chao, QIU Gang, et al. Finite Element-Based Equivalent Loading Method for Conductor Icing Galloping Loads[J]. 2026, 46(1): 29-39. DOI： 10.3969/j.issn.1008-0198.2026.01.004.

摘要

针对输电线路日常运维监测、工程应急评估等场景下

传统流固耦合方法难以快速获取覆冰舞动响应的问题

提出一种基于有限元的覆冰舞动荷载等效加载方法

旨在提升舞动响应预测效率以满足工程应急需求。利用悬链线理论进行导线找形分析

确定导线在初始张力与自重作用下的初始平衡状态;基于气动力三分力原理

结合覆冰导线升力系数、阻力系数及扭矩系数

计算升力、阻力与扭矩;基于有限元模型将动态气动荷载等效转化为节点集中荷载

最后借助ANSYS APDL平台实现舞动位移响应仿真分析。算例结果验证了该方法对单导线、分裂导线及不同覆冰形状的适用性

同时可用于低风速工况的舞动分析。与传统方法相比

该方法无需复杂参数输入和长时间积分迭代

能快速输出导线位移响应结果

分析效率提升显著

可为覆冰灾害下输电线路防舞决策制定提供技术支撑。

Abstract

Aiming at the problem that traditional fluid-structure interaction methods are difficult to quickly obtain the galloping response of transmission lines under icing conditions in scenarios such as daily operation and maintenance monitoring and engineering emergency assessment

a finite element-based equivalent loading method for icing galloping loads is proposed

which aims to improve the efficiency of galloping response prediction to meet engineering emergency needs. The catenary theory is used for conductor shape-finding analysis to determine the initial equilibrium state of the conductor under the action of initial tension and self-weight. Based on the three-component aerodynamic force principle

combined with the lift coefficient

drag coefficient and torque coefficient of the iced conductor

the lift force

drag force and torque are calculated. The dynamic aerodynamic loads are equivalently converted into concentrated nodal loads based on the finite element model. Finally

the simulation analysis of galloping displacement response is realized with the help of the ANSYS APDL platform. The example results verify the applicability of the method to single conductors

split conductors and different icing shapes

and it can also be applied to galloping analysis under low wind speed conditions. Compared with the traditional method

this method does not require complex parameter input and long-time integral iteration

and can quickly output the conductor displacement response results

with a significant improvement in analysis efficiency

which can provide technical support for the formulation of anti-galloping decisions for transmission lines under icing disasters.

关键词

Keywords

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