Aerodynamic Characteristics of D Shape Iced Bundled Conductors with Different Initial Attack Angles

LOU Wenjuan, LYU Jiang, YAN Dong, YANG Xiaohui

Electric Power Construction ›› 2014, Vol. 35 ›› Issue (1) : 1-7.

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Electric Power Construction ›› 2014, Vol. 35 ›› Issue (1) : 1-7. DOI: 10.3969/j.issn.1000-7229.2014.01.001

Aerodynamic Characteristics of D Shape Iced Bundled Conductors with Different Initial Attack Angles

  • LOU Wenjuan 1, LYU Jiang1, YAN Dong2, YANG Xiaohui2
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Abstract

By applying high frequency force balance technique on rigid section models in wind tunnel, the models of 2-bundle and 6-bundle D shape iced conductor in 13 different cases were tested. The static aerodynamic coefficients of the models, including the whole aerodynamic characteristic of different initial attack angle and each aerodynamic characteristic of sub-conductor in 60° attack angle, were obtained from 0°~360° by every 5° in wind tunnel test. Then the galloping stability of D shape iced conductor was analyzed based on the Den Hartog criterion. The test results show that the initial attack angle has impact on the aerodynamic characteristic and galloping stability of iced conductor. However, the wake interference around sub-conductors on aerodynamic characteristic is obvious under certain wind attack angles, furthermore, it improves the galloping instability. The obtained test results can provide basic aerodynamic data for the analysis and prevention technology of galloping of 2-bundle and 6-bundle D shape iced conductors.

Key words

D shape iced conductor / bundled conductors / initial attack angle / sub-conductors / aerodynamic characteristic / galloping

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LOU Wenjuan, LYU Jiang, YAN Dong, YANG Xiaohui. Aerodynamic Characteristics of D Shape Iced Bundled Conductors with Different Initial Attack Angles[J]. Electric Power Construction. 2014, 35(1): 1-7 https://doi.org/10.3969/j.issn.1000-7229.2014.01.001

References

 

[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, 2003: 1-15.
[2]Den Hartog J P. Transmission line vibration due to sleet[J].Transactions of the American Institute of Electrical Engineers,1932,51(4): 1074-1086.
[3]Nigol O,Buchan P G. Counductor gallioing 2: torsional mechanism[J].IEEE Transactions on Power Apparatus and Systems,1981,100(2) : 708-720.
[4]Nigol O,Clarke G J.Conductor galloping and control based on torsional mechanism[C]//IEEE Transactions on Power Engineering Society Winter Meeting,1974:74016-2.
[5]Takesi Ishihara. A wind tunnel study on aerodynamic characteristics of ice accreted transmission lines[C]//5th International Colloquium on Bluff Body Aerodynamics and Applications,Ottawa,2004:369-372.
[6]李万平,杨新祥,张立志.覆冰导线群的静气动力特性[J].空气动力学学报,1995.13(4): 427-435.
[7]李万平.覆冰导线群的动态气动力特性[J]. 空气动力学学报,2000,18(4): 413-420.
[8]王昕,楼文娟,许福友,等. 覆冰导线气动力特性风洞试验研究[J]. 空气动力学报, 2011,29(5):573-579.
[9]王昕. 覆冰导线舞动风洞试验研究及输电塔线体系舞动模拟[D]. 杭州:浙江大学,2011.
[10]顾明,马文勇,全涌,等.两种典型覆冰导线气动力特性及稳定性分析[J].同济大学学报:自然科学版,2009,37(10):1328-1332.
[11]马文勇,顾明,全涌,等. 准椭圆形覆冰导线气动特性试验研究[J]. 同济大学学报:自然科学版,2010,38(10):1409-1413.
[12]李海若, 郭海超, 谢强. 薄覆冰导线气动力特性风洞试验研究[J]. 电力建设, 2013, 34(3):12-16.
[13]吕翼, 楼文娟, 孙珍茂, 等. 覆冰三分裂导线气动力特性的数值模拟[J]. 浙江大学学报:工学版, 2010, 44(1): 174-179.
[14]叶文娟,周焕林. 覆冰导线风致振动的数值模拟[J]. 电力建设, 2012, 33(6): 47-49.
[15]林巍. 覆冰输电导线气动力特性风洞试验及数值模拟研究[D]. 杭州: 浙江大学,2012.
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