输电线路导线覆冰扭转特性的数值模拟

doi:10.19595/j.cnki.1000-6753.tces.190181

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (45626 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Conductor icing of overhead transmission line is one of the most serious natural disasters in power systems. Studying the numerical simulation method of conductor icing and establishing a simulation platform can not only predict the growth of conductor icing scientifically, but also greatly reduce the work of field observation. However, the existing mathematical models and simulation calculation methods all ignore the torsion of conductor in icing process, so the actual ice accretion process cannot be simulated accurately and effectively. In this paper, based on the formation mechanism of conductor icing, the twisting factor is taken into account, and then the mathematical model of conductor torsion is proposed. Meanwhile, the simulation program is written by C language to realize the numerical simulation process of dynamic conductor icing growth. The simulation results show that the conductor icing growth is a dynamic process with torsion. At the same time, the distance from the tower, the span, the wind speed, and the diameter of the liquid droplets all have great influence on the torsion angle. The numerical simulation method proposed is verified at the Xuefeng-mountain Natural Icing Test Base of Chongqing University.

Key words： Conductor icing torsion mathematical model dynamic growth

Received: 22 February 2019 Published: 24 April 2020

PACS:

TM85

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Jiang Xingliang
	Hou Ledong
	Han Xingbo
	Ren Xiaodong
	Huang Yafei

Cite this article:

Jiang Xingliang,Hou Ledong,Han Xingbo等. Numerical Simulation of Torsion Characteristics of Transmission Line Conductor[J]. Transactions of China Electrotechnical Society, 2020, 35(8): 1818-1826.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190181 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I8/1818

[1] 蒋兴良, 易辉. 输电线路覆冰及防护[M]. 北京: 中国电力出版社, 2002.
[2] 韩兴波, 蒋兴良, 毕聪来, 等. 基于分散型旋转圆导体的覆冰参数预测[J]. 电工技术学报, 2019, 34(5): 1096-1105.
Han Xingbo, Jiang Xingliang, Bi Conglai, et al.Prediction of icing environment parameters based on decentralized rotating conductors[J]. Transactions of China Electrotechnical Society, 2019, 34(5): 1096-1105.
[3] 蒋兴良, 张志劲, 胡琴, 等. 再次面临电网冰雪灾害的反思与思考[J]. 高电压技术, 2018(2): 6-9.
Jiang Xingliang, Zhang Zhijin, Hu Qin, et al.Thinkings on the restrike of ice and snow disaster to the power grid[J]. High Voltage Engineering, 2018(2): 6-9.
[4] 张志劲, 黄海舟, 蒋兴良. 复合绝缘子雾凇覆冰厚度预测模型[J]. 电工技术学报, 2014, 29(6): 318-325.
Zhang Zhijin, Huang Haizhou, Jiang Xingliang, et al.Model for predicting thickness of rime accreted on composite insulators[J]. Transactions of China Elec- trotechnical Society, 2014, 29(6): 318-325.
[5] Imai. Studies on ice accretion[J]. Researches on Snow and Ice, 1953, 3(1): 35-34.
[6] Lenhard R W.An indirect method for estimating the weight of glaze on wires[J]. Bull Amer Meteor Soc, 1955, 36(3): 1-5.
[7] Kuroiwa D.Icing and snow accretion on electric wires[R]. U.S. Army Cold Regions Research and Engineering Laboratory, 1965: 1-10.
[8] Chaine P M, Casfonguay G.New approach to radial ice thichness concept applied to bundle-like con- ductors[R]. Industial Metecrology Study, Enwiron- ment Canada, 1974.
[9] Jones K F.A simple model for freezing rain ice loads[J]. Atmospheric Research, 1998, 46(1-2): 87-97.
[10] 廖玉芳, 段丽洁. 湖南电线覆冰厚度估算模型研究[J]. 大气科学学报, 2010, 33(4): 395-400.
Liao Yufang, Duan Lijie.Study on estimation model of wire icing thickness in Hunan province[J]. Transactions of Atmospheric Sciences, 2010, 33(4): 395-400.
[11] Langmuir I, Blodgett K.A mathematical investi- gation of water droplet trajectories[R]. Army Air Force Technical Report, 1946: 5418.
[12] 汪泉霖. 输电线路导线无扭转覆冰过程的仿真实验方法研究[D]. 重庆: 重庆大学, 2018.
[13] 梁曦东, 李雨佳, 张轶博, 等. 输电导线的覆冰时变仿真模型[J]. 高电压技术, 2014, 40(2): 336-343.
Liang Xidong, Li Yujia, Zhang Yibo, et al.Time- dependent simulation model of ice accretion on transmission line[J]. High Voltage Engineering, 2014, 40(2): 336-343.
[14] 蒋兴良, 姜方义, 汪泉霖, 等. 基于最优时间步长模型的输电导线雾凇覆冰预测[J]. 电工技术学报, 2018, 33(18): 4408-4418.
Jiang Xingliang, Jiang Fangyi, Wang Quanlin, et al.Prediction of rime accretion on transmission line based on optimal time step model[J]. Transactions of China Electrotechnical Society, 2018, 33(18): 4408-4418.
[15] 张暕, 何青. 输电线路覆冰时导线表面形状对碰撞系数的影响[J]. 电工技术学报, 2016, 31(13): 209-217.
Zhang Jian, He Qing.Influence of conductor surface shape on collision coefficient during transmission line icing[J]. Transactions of China Electrotechnical Society, 2016, 31(13): 209-217.