Influence of Corona Space Charge on Lightning Shielding Performance of Ground Wire of UHVDC Transmission Line

被引：0
|
作者：
He H.W. [1 ]
Chen S.S. [2 ]
He H.X. [2 ]
Zou Y.H. [2 ]
Yu J. [3 ]
Chen W.J. [3 ]
Xiao M. [2 ]
机构：
[1] China Electric Power Research Institute, Wuhan
[2] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan
[3] State Grid Corporation of China, Xicheng District, Beijing
来源：
He, Hui Wen (hehuiwen@epri.sgcc.com.cn) | 2018年 / Power System Technology Press卷 / 42期
基金：
中国国家自然科学基金;
关键词：
Corona space charge; Lightning leader propagation model; Upward leader;
D O I：
10.13335/j.1000-3673.pst.2017.2718
中图分类号：
学科分类号：
摘要：
Subjected to simultaneous effect of thunder cloud and DC operation voltage, corona discharge will produce a space charge layer formed with a huge number of positive and negative ions in vicinity of UHVDC line. To study influence of corona space charge on lightning shielding performance of UHVDC transmission line, a numerical model was established to simulate corona space charge development from the UHVDC overhead transmission line subjected to thunder cloud field. Combined with self-consistent leader inception and propagation model (SLIM), upward leader characteristics and strike distance of a typical ±1100kV UHVDC ground wire were simulated in presence of corona space charge. Based on these, influences of corona space charge on initial time of upward leader, discharge current and length were quantitatively analyzed. By calculating the strike distance and expose arc of ground wire under corona space charge, it is concluded that negative protection angle configuration in plain area can be used to efficiently reduce shielding failure rate even taking effect of corona discharges into account. Influence of corona space charge on lightning shielding performance of UHVDC transmission lines in mountainous terrain should be further studied in future. © 2018, Power System Technology Press. All right reserved.
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收藏
页码：1039 / 1047
页数：8
相关论文
共 30 条
  • [1] Armstrong H.R., Whitehead E.R., Field and analytical studies of transmission line shielding, IEEE Transactions on Power Apparatus and Systems, 87, 1, pp. 270-281, (1968)
  • [2] Brown G.W., Whitehead E.R., Field and analytical studies of transmission line shielding: Part II, IEEE Transactions on Power Apparatus and Systems, 88, 5, pp. 617-626, (1969)
  • [3] Taniguchi S., Tsuboi T., Okabe S., Et al., Improved method of calculating lightning stroke rate to large-sized transmission lines based on electric geometry model, IEEE Transactions on Dielectrics and Electrical Insulation, 17, 1, pp. 53-62, (2010)
  • [4] Dellera L., Garbagnati E., Lightning stroke simulation by means of the leader progression model Part I: description of the model and evaluation of exposure of free-standing structures, IEEE Transactions on Power Delivery, 5, 4, pp. 2009-2017, (1990)
  • [5] Dellera L., Garbagnati E., Lightning stroke simulation by means of the leader progression model Part II: Exposure and shielding failure evaluation of overhead lines with assessment of application graphs, IEEE Transactions on Power Delivery, 5, 4, pp. 2023-2029, (1990)
  • [6] Becerra M., Cooray V., A self-consistent upward leader propagation model, Journal of Physics D: Applied Physics, 39, 16, pp. 3708-3715, (2006)
  • [7] Becerra M., Cooray V., Time dependent evaluation of the lightning upward connecting leader inception, Journal of Physics D: Applied Physics, 39, 21, pp. 4695-4702, (2006)
  • [8] Becerra M., Cooray V., A simplified physical model to determine the lighting upward connecting leader inception, IEEE Transactions on Power Delivery, 21, 2, pp. 897-908, (2006)
  • [9] Zeng R., Geng Y.-N., Li Y., Et al., Lightning shielding failure model of transmission line based on leader progress model, High Voltage Engineering, 34, 10, pp. 2041-2046, (2008)
  • [10] He H., He J., Qian G., Et al., Lightning shielding analysis Model of UHVAC overhead transmission line, High Voltage Engineering, 36, 1, pp. 196-204, (2010)
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