| 变电所直接雷击下的LEMP计算 |
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| 引用本文： | 李刚.变电所直接雷击下的LEMP计算[J].电力系统保护与控制,2007,35(11):75-78. |
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| 作者姓名： | 李刚 |
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| 作者单位： | 浙江工业大学 浙江杭州310027 |
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| 摘 要： | 给出了使用电路法进行数值模拟雷击电流暂态分布的原理,采用电路方法和数值计算方法并且结合试验验证,对于金属构架在雷击情况下的建筑物内部电磁场分布进行仿真和分析,讨论雷电流在金属框架内的分布和暂态电磁场分布,定量地计算建筑物内部某定点的电磁场数值,分析建筑物内部存在其他金属构架对在暂态电磁场分布的影响,并且根据实验对计算结果进行了验证。
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| 关 键 词： | 直接雷击 电路法 电磁场 |
| 文章编号： | 1003-4897（2007）11-0075-04 |
| 修稿时间： | 2007-04-25 |
Calculation of transformer substation during direct lightning stroke |
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| LI Gang.Calculation of transformer substation during direct lightning stroke[J].Power System Protection and Control,2007,35(11):75-78. |
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| Authors: | LI Gang |
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| Affiliation: | ZhejiangUniversityofTechnology, Hangzhou310027, China |
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| Abstract: | This paper presents the calculation principles of transient lightning current distribution by circuit approach. It simulates and analyses the distribution of the electromagnetism field inside the building for metals frame at thunder,by electric circuit method, number calculation method and combination experiment verification. Transient current distribution and transient electromagnetic distribution are discussed. The electromagnetic value of some point is quantitatively calculated inside the structure and the influence of electromagnetic field if there is another metal structure inside it is analysed. And the calculation result is rerified with experiment. |
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| Keywords: | direct lightning stroke circuit approach electromagnetic field |
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