500 kV输电线路塔线体系舞动响应分析

doi:10.11930.2015.7.139

摘要/Abstract

摘要： 通过建立连续5档塔线体系有限元模型，采用气动分析法得到了不同阻尼比下的导线张力、不平衡张力和导线舞动轨迹，分析了舞动荷载作用下杆塔动力响应。按照铁塔阻尼计算得到的舞动响应高于导线阻尼计算值。考虑塔线耦合效应后，导线舞动幅值增大，导线张力和不平衡张力减小。导线垂向运动由2个主频的多阶混合振动变为单个主频的一阶振动。当采用铁塔阻尼进行分析时，耐张塔不平衡张力超过断线张力设计值，铁塔横担下截面斜材最大应力超过设计应力，会导致横担被破坏。

关键词: 500 kV输电线路, 舞动, 塔线体系, 阻尼, 轨迹, 动力响应

Abstract: In this paper, a FEA model of continuous five-span tower-line system is established firstly. With different damping coefficients, the aerodynamic analysis method is applied to obtain several parameters of conductors, including conductor tensions, unbalanced tensions and galloping traces. The dynamic responses of the towers under galloping load are then analyzed. It shows that the dynamic responses calculated with the tower damping coefficient are higher than that with the conductor damping coefficient. With consideration of the tower-line coupling effect, the galloping amplitudes increase, and the conductor tensions as well as the unbalanced tensions decrease. The vertical motion of the galloping conductor changes from multi-order vibration of two-principal frequency to the first order vibration with one principal frequency. When analyzed with the tower coefficient, the unbalanced tension exceeds the designed broken tension and the stress of the diagonal member at the bottom plane of the cross arm is higher than the designed stress, which shows that the cross arm will be collapsed.

Key words: 500 kV transmission line, galloping, tower-line system, damping coefficient, trace, dynamic response

中图分类号:

TM752+.5

杨风利，党会学，杨靖波，李新民. 500 kV输电线路塔线体系舞动响应分析[J]. 中国电力, 2015, 48(7): 139-145.

YANG Fengli, DANG Huixue, YANG Jingbo, LI Xinmin. Analysis on the Dynamic Responses of Tower-line System of 500 kV Transmission Line with Galloping Conductors[J]. journal1, 2015, 48(7): 139-145.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930.2015.7.139

https://www.electricpower.com.cn/CN/Y2015/V48/I7/139

参考文献

[1] 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，2002：84-88．
[2] 陈晓明，邓洪洲，王肇民．大跨越输电线路舞动稳定性研究[J]．工程力学，2004，21（1）：56-60．
CHEN Xiaoming, DENG Hongzhou, WANG Zhaomin． Conductor galloping stability analysis of long-span transmission system[J]．Engineering Mechanics, 2004, 21(1): 56-60．
[3] 樊社新，何国金，廖小平，等．结冰导线舞动机制分析[J]．中国电机工程学报，2006，26（14）：131－133．
FAN Shexin, HE Guojin, LIAO Xiaoping, et al． Analysis of galloping mechanism of iced conductor[J]． Proceedings of the CSEE, 2006, 26(14): 131-133．
[4] 朱宽军，刘超群，任西春，等．特高压输电线路防舞动研究[J]．高电压技术，2007，33（11）：61－65．
ZHU Kuanjun, LIU Chaoqun, REN Xichun, et al． Research on anti-galloping of UHV transmission line[J]． High Voltage Engineering, 2007, 33(11): 61-65．
[5] 朱宽军，刘彬，刘超群，等．特高压输电线路防舞动研究[J]．中国电机工程学报，2008，28（34）：12－20．
ZHU Kuanjun, LIU Bin, LIU Chaoqun, et al． Research on anti- galloping for UHV transmission line [J]． Proceedings of the CSEE, 2008, 28(34): 12-20．
[6] 赵莉，严波，吕欣，等. 输电塔线体系导线舞动过程中的振幅和张力[J]. 中国电力，2014，47（10）：71－76．
ZHAO Li, YAN Bo, LV Xin, et al. Vibration amplitudes and tensions of conductors during galloping in transmission tower-line system [J]. Electric Power, 2014, 47(10): 71-76.
[7] 张勇平，刘鸿斌，邓春，等. 沽太500 kV双回线路覆冰舞动故障分析[J]. 中国电力，2010，43（3）：27－30．
ZHANG Yongping, LIU Hongbin, DENG Chun, et al. Analysis of 500 kV Gu-Tai transmission line ice-coating galloping [J]. Electric Power, 2010, 43(3): 27-30.
[8] 周坤涛，郝淑英，刘君，等. 覆冰输电线路结构及荷载对舞动的影响[J]. 振动与冲击，2012，31（1）：116－120．
ZHOU Kuntao, HAO Shuying, LIU Jun, et al． Influence of conductor structure and loads on galloping of a transmission line[J]． Journal of Vibration and Shock, 2012, 31(1): 116-120．
[9] 杨风利，杨靖波，付东杰，等．输电线路导线舞动荷载分析[J]．中国电机工程学报，2011，31（16）：102－107．
YANG Fengli, YANG Jingbo, FU Dongjie, et al． Analysis on the loads from galloping conductors of transmission lines [J]．Proceedings of the CSEE, 2011, 31(16): 102-107．
[10] 胡春梅，景乾明，王明哲，等. 输电导线舞动仿真的虚拟再现技术研究[J]. 中国电力，2013，46（11）：17－21．
HU Chunmei, JING Qianming, WANG Mingzhe, et al. Research on virtual reality technology for galloping simulation of power transmission lines [J]. Electric Power, 2013, 46(11): 17-21.
[11] BAENZIER M A, JAMES W D, WOUTERS B, et al． Dynamic loads on transmission line structures due to galloping conductors[J]． IEEE Transactions on Power Delivery, 1994, 9(1): 40-49．
[12] 郝淑英，周坤涛，刘君，等. 考虑多种因素的覆冰输电线路的有限元分析[J]. 天津理工大学学报，2010，26（6）：7－11．
HAO Shuying, ZHOU Kuntao, LIU Jun, et al． Finite element analysis of iced conductor galloping involving multi-factors[J]．Journal of Tianjin University of Technology, 2010, 26(6): 7-11．
[13] 朱宽军，刘超群，任西春．架空输电线路舞动时导线动态张力分析[J]．中国电力，2005，38（10）：40－44．
ZHU Kuanjun, LIU Chaoqun, REN Xichun． Analysis on dynamic tension of conductor under transmission line galloping [J]． Electric Power, 2005, 38(10): 40-44．
[14] 曹化锦，李黎，姜维，等. 输电塔-线体系舞动仿真及控制研究[J]. 振动与冲击，2011，30（12）：245－249．
CAO Huajin, LI Li, JIANG Wei, et al． Simulation and control for galloping of a transmission tower-line system[J]． Journal of Vibration and Shock, 2011, 30(12): 245-249．
[15] 中国电力科学研究院．输电线路舞动荷载分析报告[R]．北京：中国电力科学研究院，2010．
[16] 王丽新，杨文兵，杨新华，等．输电线路舞动的有限元分析[J]．华中科技大学学报：城市科学版，2004，21（1）：76－80．
WANG Lixin, YANG Wenbing, YANG Xinhua, et al． Finite element analysis for galloping process of transmission lines[J]．Journal of Huazhong University of Science and Technology: Urban Science Edition, 2004, 21(1): 76-80．
[17] 杨新华，王丽新，王乘，等．考虑多种因素的导线舞动三维有限元分析[J]．动力学与控制学报，2004，2（4）：84－89．
YANG Xinhua, WANG Lixin, WANG Cheng, et al． 3D finite element analysis of transmission line galloping involving multi factors [J]． Journal of Dynamics and Control, 2004, 2(4): 84-89．
[18] DESAI Y M, SHAN A H, POPPLEWELL N. Perturbation-based finite element analyses of transmission line galloping[J]. Journal of Sound and Vibration, 1996, 191(4): 469-489.
[19] 何锃，钱天虹. 覆冰三分裂导线扭控舞动的分析计算[J]. 华中理工大学学报，1998，26（10）：16－18．
HE Zeng, QIAN Tianhong． The computation of overhead and iced multiconductor galloped with tensional mechanism[J]. Journal Huazhong University of Science and Technology, 1998, 26(10):16-18．
[20] 晏致涛，李正良，杨振华. 基于节点6自由度的输电线舞动有限元分析[J]. 振动与冲击，2011，30（8）：112－117．
YAN Zhitao, LI Zhengliang, YANG Zhenhua． Finite element modeling of transmission line galloping based on 6-DOFs nodes [J]． Journal of Vibration Engineering, 2011, 30(8): 112-117．
[21] 孙珍茂，楼文娟. 覆冰输电导线舞动非线性有限元分析[J]. 电网技术，2010，34（12）：214－218.
SUN Zhenmao, LOU Wenjuan． Nonlinear finite element analysis on galloping of ice-coated transmission line[J]． Power System Technology, 2010, 34(12): 214-218．
[22] 杨风利，杨靖波，付东杰，等．塔线系统脱冰跳跃动力响应分析[J]．振动工程学报，2010，23（1）：86－93．
YANG Fengli, YANG Jingbo, FU Dongjie, et al． Analysis on dynamic responses of transmission tower-line system under ice shedding [J]． Journal of Vibration Engineering, 2010, 23(1): 86-93．
[23] 杨风利，杨靖波，李正，等．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．
YANG Fengli, YANG Jingbo, LI Zheng, et al． Study on the ice shedding and vibration suppression of transmission line[J]． Journal of Vibration and Shock, 2010, 29(5): 20-25．
[24] YANG Fengli, YANG Jingbo, HAN Junke, et al． Analysis on dynamic responses of transmission tower line system under ice shedding[J]． International Journal of Structural Stability and Dynamics, 2010, 10(3): 461-481．
[25] 严波，胡景，周松，等. 覆冰四分裂导线舞动数值模拟及参数分析[J]. 振动工程学报，2010，23（3）：310－316．
YAN Bo, HU Jing, ZHOU Song, et al． Numerical simulation and parameter analysis of galloping for iced quad-bundled conductor[J]． Journal of Vibration Engineering, 2010, 23(3): 310-316．
[26] 克拉夫 R，彭津 J. 结构动力学[M]. 王光远，译. 北京：高等教育出版社，2006.
[27] GB 50545—2010 110 kV～750 kV架空输电线路设计规范[S]. 2010.
[28] 魏冲，潘少成，唐明贵，等． 500 kV输电线路舞动分析及治理[J]．电力建设，2011，32（4）：22－25．
WEI Chong, PAN Shaocheng, TANG Minggui, et al． Analysis and treatment of the galloping of 500 kV transmission line [J]． Electric Power Construction, 2011, 32(4): 22-25．