Research on the Windage Yaw Calculation of UHV Long Insulator String

doi:10.11930/j.issn.1004-9649.2014.1.28.6

Abstract

Abstract: Calculation of windage yaw angle of transmission lines is usually made by rigid body statics model. In order to simplify the calculation process, it is supposed in this model that the insulator string and conductor are rigid body, and no bending or deformation occur for the insulator string when wind blows. For the UHV transmission line, however, the chain structure bending extent of the UHV insulator string is higher than that of lower voltage transmission lines when wind blows because of its longer insulator string. It is therefore imperative to study the effects of long insulator string on the windage yaw angle of transmission lines. Numerical simulation and simulation verification test of windage yaw shows that when rod insulator string is used for UHV transmission lines, the effects of the chain structure bending can be ignored; but for the disk insulator string, when the adjacent conductor hanging points are higher than the insulator string itself, the effects shall be taken into consideration, i.e., the horizontal displacement of insulator string calculated by the existing method shall be added by the deviation value caused by chain structure bend of insulator string, otherwise the windage yaw fault may occur for the UHV tower head

Key words: insulator string, chain structure bend, rigid body statics model, windage yaw angle, wind load

CLC Number:

TM751

MIN Xuan, WEN Zhi-ke, WU Xiang-dong, SHAO Gui-wei, JI Kun, CAI Huan-qing. Research on the Windage Yaw Calculation of UHV Long Insulator String[J]. Electric Power, 2014, 47(1): 28-34.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.1.28.6

https://www.electricpower.com.cn/EN/Y2014/V47/I1/28

References

[1] 张禹芳. 我国500 kV输电线路风偏闪络分析[J]. 电网技术,2005,29（7）：65-67.
ZHANG Yu-fang. Analysis on flashover between tower and conducting wires in domestic 500 kV transmission lines caused by windage yaw [J]. Power System Technology, 2005, 29(7): 65-67.
[2] 刘焕明. 500 kV侯临线286号风偏故障分析[J]. 山西电力,2004（6）：14-15.
LIU Huan-ming. Analysis of 286 partial wind fault on 500 kV Hou-lin transmission line[J]. Shanxi Electric Power, 2004(6): 14-15.
[3] 龚坚刚. 浙江电网跳线风偏跳闸的分析与措施[J]. 华东电力,2007,35（5）：112-114.
GONG Jian-gang. Line trips in Zhejiang Power Grid due to windage yaw of jumper wires and relevant counter measures [J]. East China Eletric Power, 2007, 35(5): 112-114.
[4] 牛彬,陈江华,姚俊峰. 输电线路的风偏角问题分析[J]. 山西电力,2009（3）：60-62.
NIU Bin, CHEN Jiang-hua, YAO Jun-feng. Problem analysis of transmission line wind declination[J]. Shanxi Electric Power, 2009(3): 60-62.
[5] 弓建新,秦润生,贾雷亮,等. 220 kV输电线路JG1型塔中相跳线风偏问题的探讨[J]. 山西电力技术,2001（4）：40-41.
GONG Jian-xin, QIN Run-sheng, JIA Lei-liang, et al . Discussion on wind deflection of mid phase jumper-line JG1 tower on 220 kV power line [J]. Shanxi Electric Power, 2001(4): 40-41.
[6] 吴正树. 500 kV输电线路风偏闪络分析[J]. 广西电力,2009（1）：29-43.
WU Zheng-shu. Analysis of flashover caused by windage yaw in 500 kV transmission line[J]. Guangxi Electric Power, 2009(1): 29-43.
[7] 韩锐. 220 kV输电线路大转角耐张塔跳线风偏跳闸故障的反事故措施[J]. 安徽电力,2007（12）：14-15.
HAN Rui. Anti-accidentmeasure of windage yaw tripping accident of big strain resistant corner tower leap lines on 220 kV transmission line [J]. Anhui Electric Power, 2007(12): 14-15.
[8] 闵绚,邵瑰玮,文志科,等. 国内外悬垂绝缘子串风偏设计参数对比与分析[J]. 电力建设,2013,34（4）：19-26.
MIN Xuan, SHAO Gui-wei, WEN Zhi-ke, et al . Analysis on windage design parameters of suspension insulator strings at home and abroad [J]. Electric Power Construction, 2013, 34(4):19-26.
[9] 东北电力设计院. 电力工程高压送电线路设计手册[S]. 北京：水利电力出版社,1992.
[10] 邵天晓. 架空送电线路的电线力学计算[M]. 2版. 北京：中国电力出版社,2003：60-61.
[11] 邱志贤. 高压绝缘子的设计与应用[M]. 北京：中国电力出版社,2006.
[12] 李强,周兆禹. 盘形悬式瓷绝缘子钢脚结构的尺寸优化[J]. 工程设计学报,2012（4）：96-99.
LI Qiang, ZHOU Zhao-yu. The sizing optimization of the pin structure of ceramic cap and pin insulator[J]. Chinese Journal of Engineering Design, 2012(4): 96-99.
[13] 王家福,梁曦东. 运行中复合绝缘子的机械性能实验分析[J]. 高电压技术,2011,37（5）：1294-1300.
WANG Jia-fu, LIANG Xi-dong. Mechanical performance of in-service composite insulators[J]. High Voltage Engineering, 2011, 37(5): 1294-1300.
[14] 梁曦东,王家福. 大吨位压接式复合绝缘子长期运行的机械可靠性[J]. 高电压技术,2010,36（10）：2560-2564.
LIANG Xi-dong, WANG Jia-fu. Mechanical reliability of crimped composite insulators with high specified mechanical load in long-term service[J]. High Voltage Engineering, 2010, 36(10):2560-2564.
[15] 邵瑰玮,闵绚,董彦武,等. 输电导线悬挂点处等效风荷载仿真分析[J]. 高电压技术,2012,38（2）：476-482.
SHAO Gui-wei, MIN Xuan, DONG Yan-wu, et al . Simulation analysis of the equivalent wind loads on the transmission conductor two hanging points [J]. High Voltage Engineering, 2012, 38(2): 476-482.
[16] 闵绚,邵瑰玮,刘云正,等. 线路布置方式对悬垂绝缘子串摇摆角计算的影响[J]. 中国电力,2013,46（1）：69-74.
MIN Xuan, SHAO Gui-wei, LIU Yun-zheng, et al . The influence of transmission line arrangements on the swing angle calculation of suspension insulator sring [J]. Electric Power, 2013, 46(1): 69-74.
[17] MCCLURE G, LAPOINTE M. Modeling the structural dynamic response of overhead transmission lines[J]. Computers and Structures, 2003, 81: 825-834.
[18] LOREDO-SOUZA A M, Davebport A G. The effects of high winds on trans mission lines [J]. Journal of Wind Engineering and Industrial Aerodyna Mics, 1998, 74-76: 987-994.
[19] 孔德怡,李黎. 悬垂绝缘子串动态风偏角有限元分析[J]. 电力建设,2008,29（9）：5-9.
KONG De-yi, LI Li. Finite element analysis of dynamic windage angle of suspended insulator strings[J]. Electric Power Construction, 2008, 29(9): 5-9.
[20] 郑佳艳. 动态风作用下悬垂绝缘子串风偏计算研究[D]. 重庆：重庆大学,2006.
[21] GB 50545—2010 110 kV~750 kV架空输电线路设计规范[S]. 2010.