New Calculating Algorithm for Torsional Stiffness of Bundle Overhead Transmission Lines

您当前的位置：

首页 >

文章列表页 >

New Calculating Algorithm for Torsional Stiffness of Bundle Overhead Transmission Lines

更新时间：2025-07-09

- New Calculating Algorithm for Torsional Stiffness of Bundle Overhead Transmission Lines
- Vol. 46, Issue 2, Pages: 100-105+140(2012)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM751
- Online First：10 February 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
New Calculating Algorithm for Torsional Stiffness of Bundle Overhead Transmission Lines[J]. 2012, 46(2): 100-105+140.
DOI：

New Calculating Algorithm for Torsional Stiffness of Bundle Overhead Transmission Lines[J]. 2012, 46(2): 100-105+140. DOI：

摘要

针对以往在架空输电线路分裂导线扭转刚度研究中存在计算误差较大的问题

提出了一种计算分裂导线扭转刚度的新方法.首先通过分析分裂导线扭转运动所引起的子导线长度变化

推导了子导线在扭转时的实际张力计算公式; 然后针对一个档距的任意分裂导线进行力学分析

除了考虑到以往研究中所涉及的一些影响因素之外

还特别考虑了线路弧垂和线路两端高度差的影响

最终导出了分裂导线扭转刚度的一般计算公式.所推导的计算公式较清楚地描述了各种参数对扭转刚度的影响规律

并且通过确定这些参数能够直接计算得到扭转刚度数值.通过与实测值的比较表明

对于不同的分裂数、档距长度等参数的分裂导线

其扭转刚度计算结果均有较高的精度

证明了该计算公式的有效性和适应性.本研究为进一步分析和防治架空输电线路分裂导线舞动提供了新的手段.

Abstract

Aiming at the existing analytic methods being lacking in reliable accuracy

a new algorithm for calculating torsional stiffness of bundle overhead transmission lines is presented. Taking the length variation of sub-conductors as a result of torsional deformation of bundle conductors

the actual sub-conductor tension is gained. Then the effects of the sag and a difference of level between the two anchoring points are considered

and a theoretical torsional stiffness formula is deduced in a general bundle conductor span. The parameters affecting the torsional stiffness are revealed by the formula

and the torsional stiffness of bundle conductors can be directly evaluated by means of these parameters. The effectiveness and adaptability for arbitrary span lengths and number of sub-conductors are verified by comparing with the actual measuring results.

关键词

Keywords

references

郭应龙,李国兴,尤传永. 输电线路舞动[M].北京:中国电力出版社,2002:141-144.

NIGOL O, BUCHAN P G. Conductor galloping: part Ⅱ Torsional mechanism[J]. IEEE Transactions on Power Apparatus and Systems,1981,100(2):708-720.

NIGOL O, CLARKE G J, HAVARD D G. Torsional stability of bundle conductors[J]. IEEE Transactions on Power Apparatus and Systems, 1977, 96(5):1666-1674.

WANG Jianwei, LILIEN J. Overhead electrical transmission line galloping: a full multi-span 3-DOF model,some applications and design recommendations[J]. IEEE Transactions on Power Delivery, 1998, 13(3):909-916.

WANG Jianwei, LILIEN J. A new theory for torsional stiffness of multi-span bundle overhead transmission lines[J]. IEEE Transactions on Power Delivery, 1998, 13(4):1405-1411.

KEUTGEN R, LILIEN J,YUKINO T. Transmission line torsional stiffness: confrontation of field-tests line and finite element simulations[J].IEEE Transactions on Power Delivery, 1999, 14(2):567-575.

朱宽军,刘彬.架空输电线路分裂导线扭转刚度的计算[J].电网技术,2010,34(3):210-214.

ZHU Kuanjun, LIU Bin. Calculation of torsional stiffness of bundle conductors in overhead transmission lines[J]. Power System Technology, 2010, 34(3):210-214.

王少华,蒋兴良,孙才新.覆冰导线舞动特性及引起的导线动态张力[J].电工技术学报,2010,25(1):159-166.

WANG Shaohua, JIANG Xingliang, SUN Caixin. Characteristics of icing conductor galloping and induced dynamic tensile force of the conductor[J].Transactions of China Electrotechnical Society,2010,25(1):159-166.

张新占.材料力学[M].西安:西北工业大学出版社,2006:22-23.

邵天晓.架空送电线路的电线力学计算[M].北京:中国电力出版社,2003:81-88.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Modelling and Simulation for Iced Bundle Conductor Galloping

Torsional Behavior of Annular Flat Contact Shaft Segment Attached with Torsion Pins

Effects of Steam Addition on the Swirl Combustion and Emission Characteristics of Cracked Ammonia

Diffusion Characteristics and Influencing Factors in Case of Hydrogen Leakage from Fuel Cell Vehicles Running in Tunnels

Windage Loss and Flow Characteristics in Impeller Back Gaps of sCO2 Radial Inflow Turbines

Related Author

谢增 1

刘吉轩 1

刘超群 1

陈花玲 1

夏凯 1

孙岩桦 1

Related Institution

State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University

⁰