| 特高压输电线路绕击率的分析计算 |
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| 引用本文： | 王世杰,汤强,康凯.特高压输电线路绕击率的分析计算[J].电力学报,2010,25(5):385-387. |
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| 作者姓名： | 王世杰 汤强 康凯 |
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| 作者单位： | 山西大学工程学院; |
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| 摘 要： | 作为计算绕击率和绕击跳闸率的主要方法,电气几何模型法已广泛应用到输电线路防雷设计中,为改进电气几何模型法中的不合理假设,以考虑击距系数β、地面倾角θ和雷电入射角Φ的电气几何模型为依据,由模型中的几何关系,得出考虑这些因素的绕击率的计算式。针对1 000kV特高压输电线路,计算了耐雷水平下计及雷击入射角时的绕击率,并考虑了不同因素对绕击率的影响,为输电线路绕击耐雷性能的研究提供依据。
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| 关 键 词： | 特高压输电线路 电气几何模型 雷电入射角 绕击率 |
Calculation of Shielding Failure Rate for UHV Transmission Line |
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| WANG Shi-jie,TANG Qiang,KANG Kai.Calculation of Shielding Failure Rate for UHV Transmission Line[J].Journal of Electric Power,2010,25(5):385-387. |
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| Authors: | WANG Shi-jie TANG Qiang KANG Kai |
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| Affiliation: | WANG Shi-jie,TANG Qiang,KANG Kai(Engineering college of Shanxi University,Taiyuan 030013,China) |
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| Abstract: | According to the electric geometry method（EMG） in which the striking distance factor is β,ground obliquity is θ and lighting strike angle is Φ,it obtains the calculated mode for shielding failure rate based on the geometrical relationship of the EGM.This paper for 1 000 kV UHV transmission line calculates and analyzes the shield failure rate while lighting strike angles are different.It is useful to research into the lighting performance of the transmission line. |
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| Keywords: | ultra high voltage electric geometry method lighting strike angle shielding failure rate |
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