| 雷电回击参数对回击电磁场计算的影响研究 |
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| 引用本文： | 田明宏,盛松林,魏光辉,刘尚合.雷电回击参数对回击电磁场计算的影响研究[J].强激光与粒子束,2003,15(6):599-603. |
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| 作者姓名： | 田明宏 盛松林 魏光辉 刘尚合 |
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| 作者单位： | 军械工程学院 静电与电磁防护研究所， 河北 石家庄 050003 |
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| 基金项目： | 国家自然科学基金资助课题(50077024)，国家自然科学基金重点资助课题(50237340) |
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| 摘 要： | 基于BG，TL，MTLL，MTLE和TCS 5种模型，研究了雷电回击通道高度、回击速度和大地电容率对雷电回击电磁场的影响。计算中5种模型采用相同的通道基电流波形，通过计算总结了几种参数对回击电磁场的影响。
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| 关 键 词： | 雷电模型 通道高度 回击速度 大地电容率 |
| 文章编号： | 1001-4322(2003)06-0599-05 |
| 收稿时间： | 2002/8/27 |
| 修稿时间： | 2002年8月27日 |
Effects of several parameters on electromagnetic field of lightning return stroke |
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| tian ming hong,sheng song lin,wei guang hui,liu shang he.Effects of several parameters on electromagnetic field of lightning return stroke[J].High Power Laser and Particle Beams,2003,15(6):599-603. |
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| Authors: | tian ming hong sheng song lin wei guang hui liu shang he |
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| Institution: | Electrostatic and Electromagnetic Protection Institute Ordnance Engineering College, Shijiazhuang 050003, China |
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| Abstract: | In this paper, the effects of the height of channel, the return stroke speed and the permittivity of ground on the return stroke radiation field are discussed based on TL, MTLL, MTLE, TCS and BG model. Assuming a common current wave shape at the channel base, the electromagnetic field have been calculated under different conditions. The calculating results show that the height of channel doesn't affect the field before the current gets to the channel end. The initial peak of electromagnetic field increases with increasing return stroke speed, same as the high frequency component of electromagnetic field at close range. The permittivity of ground affects the initial peak and the wave tilt of fields. |
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| Keywords: | Lightning models Channel height Return stroke speed Permittivity of ground |
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