Experimental Study on the Influence Factors of Static Aerodynamic Characteristics of Ice-Coated Commonly Used Conductors

Abstract:

For conductors commonly used in the high and ultra-high voltage transmission projects, research was conducted on how ice shape, ice thickness, wind speed and angle of attack affect the static aerodynamic characteristics of ice-coated conductor. The ice shape and the shape of ice-coated conductor are both important factors that determine the aerodynamic characteristics of conductor. Sudden increase of lift coefficient may happen at low angle of attack. Wind speed shows less effect on aerodynamic characteristics of ice-coated conductor with streamlined shape than that of conductor with blunt shape. Under most attack angles, aerodynamic coefficients increase as the ice thickness increases. The aerodynamic load on ice-coated conductor does not increase linearly with the diameter of conductor.

• Periodical: Advanced Materials Research (Volumes 774-776)
• Pages: 1227-1231
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.774-776.1227
• Online since: September 2013
• Authors: Han Jie Huang, Xin Min Li
• Keywords: Aerodynamic Characteristics, Conductor, Ice-Coated, Influence Factor, Wind Tunnel Test

References

[1] Nigol, P. g. Buchan, Conductor Galloping Part I-Den Hartog mechanism [J]. IEEE Transactions on Power Apparatus and System, 1981. 100(2), 699-707.

DOI: 10.1109/tpas.1981.316921

[2] Stumpf P, Investigation of aerodynamics stability for selected inclined cables and conductor cables [D]. University of Manitoba, Canada, (1990).

[3] Chadha J, Influence of turbulence on the galloping instability of iced conductor [J]. IEEE Transactions on Power Apparatus and System, 1975. 94(5), 1489-1499.

DOI: 10.1109/t-pas.1975.31991

[4] Zhang Hongyan, Yan Bo, et al. Static test on aerodynamic characteristics of iced quad bundled conductors[J]. Acta Aerodynamica Sinica(in Chinese), 2011, 29(2): 150-154.

[5] Wang Xin, LOU Wenjuan, A wind tunnel study on aerodynamic characteristics of iced conductor [J]. Acta Aerodynamica Sinica(in Chinese) 2011, 29(5), 573-579.