线夹回转式导线阻尼间隔棒防舞机理与模态分析

doi:10.3969/j.issn.1000－7229.2014.03.014

电力建设 ›› 2014, Vol. 35 ›› Issue (3): 74-78.doi: 10.3969/j.issn.1000－7229.2014.03.014

线夹回转式导线阻尼间隔棒防舞机理与模态分析

刘连光1,赵强1,刘自发1,葛江锋1,姚建生2,仇坚2,朱小强2

1.华北电力大学电气与电子工程学院，北京市 102206；2.江苏天南电力器材有限公司，江苏省如皋市 226522

出版日期:2014-03-01
作者简介:刘连光（1954），男，教授，博士生导师，从事电网安全防御与灾变控制、电力系统规划等方面的研究工作，E-mail：liulianguang@ncepu.edu.cn；赵强（1987），男，硕士，从事电网安全防御与灾变控制方面的研究工作；刘自发（1973）,男,副教授,硕士生导师,从事电力系统分析与控制方面的研究工作；葛江锋（1990）,男,硕士研究生,从事输电线路防舞方面的研究工作；姚建生（1968）,男,高级工程师，从事线路金具设计研发相关工作；仇坚（1956）,男,工程师,从事线路金具设计研发相关工作；朱小强（1981）,男,工程师,从事线路金具设计研发工作。

Anti-Galloping Mechanism and Modal Analysis on Rotary Clamp Conductor Spacer-Damper

LIU Lianguang1, ZHAO Qiang1, LIU Zifa1, GE Jiangfeng1, YAO Jiansheng2, QIU Jian2, ZHU Qiaoqiang2

1. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China; 2.Jiangsu Tiannan Power Equipment Co.， Ltd., Rugao 226522, Jiangsu Province, China

Online:2014-03-01

摘要/Abstract

摘要：

线夹回转式导线阻尼间隔棒已经大量运用到超高压和特高压输电线路中,但该种间隔棒的防舞效果需要进一步研究。根据间隔棒的设计原理与参数，研究和验证间隔棒的防舞机理。线夹回转式导线阻尼间隔棒的部分线夹可转动，使得子导线可绕其自身轴转动，从而使覆冰导线截面形状均匀，起到了舞动抑制作用。利用ANSYS软件，建立了导线间隔棒体系的三维有限元模型；通过导线间隔棒体系的模态分析，得到导线阻尼间隔棒体系前6阶模态的固有频率和固有频率振型图。固有频率和振型图分析结果表明，线夹回转式导线阻尼间隔棒具有较好的防舞作用，在此基础上，提出线夹回转式导线阻尼间隔棒的工程应用建议。

关键词: 输电线路, 分裂导线, 线夹回转式导线阻尼间隔棒, 防舞机理, 防舞效果

Abstract:

Though the rotary clamp conductor spacer-dampers have been widely used in extra high voltage （EHV） and ultra high voltage （UHV） transmission lines, the anti-galloping effect of this kind of spacer still needs to be studied. According to the design and parameters of spacer-damper, the anti-galloping mechanism of the spacer had been researched and verified. Since part of the rotary clamp conductor spacer-damper can rotate, so that the sub-conductor can rotate around its own axis, therefore the cross-section of iced conductor becomes uniform, which plays a role of galloping inhibition. Moreover, a three-dimensional finite element model of the conductor spacer system was established by means of ANSYS software. Based on the modal analysis of the conductor spacer-damper system, the natural frequencies and their vibration mode graph of the first 6 modes of this conductor spacer-damper system were obtained. According to the analysis of the natural frequencies and vibration types, it shows that the rotary clamp space-damper has a better effect on anti-galloping. On this basis, a suggestion for engineering application of this rotary clamp conductor spacer-damper was proposed.

Key words: transmission line, bundled conductors, rotary clamp conductor spacer-damper, anti-galloping mechanism, anti-galloping effect

刘连光,赵强,刘自发,葛江锋,姚建生,仇坚,朱小强. 线夹回转式导线阻尼间隔棒防舞机理与模态分析[J]. 电力建设, 2014, 35(3): 74-78.

LIU Lianguang, ZHAO Qiang, LIU Zifa, GE Jiangfeng, YAO Jiansheng, QIU Jian, ZHU Qiaoqiang. Anti-Galloping Mechanism and Modal Analysis on Rotary Clamp Conductor Spacer-Damper[J]. ELECTRIC POWER CONSTRUCTION, 2014, 35(3): 74-78.

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线夹回转式导线阻尼间隔棒防舞机理与模态分析

Anti-Galloping Mechanism and Modal Analysis on Rotary Clamp Conductor Spacer-Damper

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