| 高压输电线路先导发展绕击分析模型研究 |
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| 引用本文： | 曾嵘,耿屹楠,李雨,何金良. 高压输电线路先导发展绕击分析模型研究[J]. 高电压技术, 2008, 34(10): 2041-2046 |
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| 作者姓名： | 曾嵘 耿屹楠 李雨 何金良 |
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| 作者单位： | 清华大学电机系电力系统及发电设备控制和仿真国家重点实验室,北京,100084;清华大学电机系电力系统及发电设备控制和仿真国家重点实验室,北京,100084;清华大学电机系电力系统及发电设备控制和仿真国家重点实验室,北京,100084;清华大学电机系电力系统及发电设备控制和仿真国家重点实验室,北京,100084 |
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| 基金项目： | 国家自然科学基金，国家科技支撑计划 |
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| 摘 要： | 雷电绕击是关系到特(超)高压输电线路安全稳定运行的关键问题之一。针对特(超)高压输电线路的特点,在总结前人研究结果的基础上,提出适用于特(超)高压线路的雷电上行先导起始判据,建立了基于先导发展法的绕击模型,并以日本特高压同塔双回线路的运行经验对模型进行了验证。基于该模型,对不同地形条件下、考虑线路运行电压的特高压直流线路的雷击问题进行研究,为改善线路的防雷性能提供帮助。
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| 关 键 词： | 绕击 上行先导 特高压 输电线路 雷电防护 高压直流 |
Lightning Shielding Failure Model of Transmission Line ased on Leader Progress Model |
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| ZENG Rong,GENG Yi-nan,LI Yu,HE Jin-liang. Lightning Shielding Failure Model of Transmission Line ased on Leader Progress Model[J]. High Voltage Engineering, 2008, 34(10): 2041-2046 |
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| Authors: | ZENG Rong GENG Yi-nan LI Yu HE Jin-liang |
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| Affiliation: | (Department of Electrical Engineering,State Key Lab of Control and Simulation of Power Systems and Generation Equipments,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Shielding failure of lightning is the key problem for safe operation of UHV transmission lines.By taking the features of UHV transmission lines into account,the criterion of upward leader inception is proposed.A model of the evaluation of lightning shielding failure of transmission line based on the leader progress method is established.The model is verified by comparing with the operation data of UHV line in Japan.The shielding fature problem of a typical UHVDC transmission lines under different terrian conditions is studied.The research work will be useful for improving the lightning performance of UHV transmission lines. |
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| Keywords: | shielding failure upward leader UHV transmission line lightning protection HVDC |
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