| 基于实验室模拟高压放电冲击力的研究 |
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| 引用本文： | 柴健,刘学良,王学良,李鑫,邳莹,朱传林.基于实验室模拟高压放电冲击力的研究[J].热带气象学报,2021,37(3):341-347. |
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| 作者姓名： | 柴健 刘学良 王学良 李鑫 邳莹 朱传林 |
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| 作者单位： | 湖北省防雷中心，湖北 武汉 430074 |
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| 基金项目： | 湖北省气象局科技发展基金2020Q12P |
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| 摘 要： | 为了研究高压放电冲击波的特性, 通过对冲击波的理论分析, 基于自主设计的一套实验装置对实验室条件下模拟高压放电产生的冲击力大小进行了量化试验。利用2.6/50 μs冲击电流发生器模拟产生放电冲击波, 依次改变冲击电流的幅值及离放电球中心位置的距离, 测定水平方向的冲击力大小。实验结果表明: 在25~100 kA冲击电流下, 离放电球中心位置50 mm处水平方向的冲击力大小为1.6~3.3 N; 随着冲击电流的增加以及离放电球中心位置距离的减小, 水平方向的冲击力呈逐渐增加趋势。当离放电球中心位置的距离超过60 mm时, 冲击力的大小受距离的影响较小。所得结论为研究自然界闪电冲击波的特性提供了一定参考依据。
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| 关 键 词： | 冲击波 高压放电 超压 冲击电流 |
| 收稿时间： | 2020-12-30 |
RESEARCH ON IMPACT FORCE OF HIGH-VOLTAGE DISCHARGE BASED ON LABORATORY SIMULATION |
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| CHAI Jian,LIU Xueliang,WANG Xueliang,LI Xin,PI Ying,ZHU Chuanlin.RESEARCH ON IMPACT FORCE OF HIGH-VOLTAGE DISCHARGE BASED ON LABORATORY SIMULATION[J].Journal of Tropical Meteorology,2021,37(3):341-347. |
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| Authors: | CHAI Jian LIU Xueliang WANG Xueliang LI Xin PI Ying ZHU Chuanlin |
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| Institution: | Hubei Lightning Protection Center, Wuhan 430074, China |
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| Abstract: | To study the characteristic of the high-voltage discharge shock wave, the present research conducted theoretical analysis on the shock wave. One test device was set up to simulate and measure the high-voltage discharge impact force under laboratory conditions. The present research used the 2.6/50 impulse current generator to make the discharge shock wave. The impulse current and the distance to the center position of the discharge sphere were changed to measure the impact force in the horizontal direction. The conclusions are drawn as follows: When the impulse current is 25~100 kA, and the distance to the center of the discharge sphere is the 50 mm, the impact force in the horizontal direction is about 1.6~3.3 N. When the impulse current increases and the distance to the center of the discharge sphere decreases, the impact force in the horizontal direction tends to increase. When the distance to the center of the discharge sphere exceeds 60 mm, impact force change caused by distance becomes small. The conclusion may provide reference for the study of the characteristics of natural lightning shock wave. |
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| Keywords: | shock wave high-voltage discharge overpressure impulse current |
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