| 雾霾对冲击放电路径影响特性的分析 |
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| 引用本文： | 邓鹤鸣,何正浩,许宇航,马军,李劲.雾霾对冲击放电路径影响特性的分析[J].高电压技术,2009,35(11):2669-2673. |
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| 作者姓名： | 邓鹤鸣 何正浩 许宇航 马军 李劲 |
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| 作者单位： | 华中科技大学环境科学与技术学院,武汉,430074 |
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| 基金项目： | 国家自然科学基金重点资助项目(50237010); 中加科技合作基金项目(2009DFA92810)~~ |
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| 摘 要： | 由于经济规模的迅速扩大和城市化进程的加快,雾霾现象日趋严重,这些雾霾多发地区是我国输电走廊或用电高负荷密度地区。为研究雾霾对放电发展的影响,利用水雾、粉煤灰等模拟雾霾天气,采用雷电冲击电压进行了雾霾对击穿电压和放电路径影响的实验研究。研究结果表明:当雾霾的粒径范围<0.01mm时,雾霾间隙的击穿电压始终较空气间隙的高,放电路径选择雾霾的概率<50%;当粒径范围为0.01～0.1mm时,正电压下选择概率<50%,雾霾间隙的击穿电压较空气间隙的高,而负电压下选择概率>50%,雾霾间隙的击穿电压较空气间隙的低。雾霾中放电发展是电场的畸变和雾霾颗粒与粒子间作用联合影响的结果。
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| 关 键 词： | 雾霾 放电路径 雷电冲击电压 粒径 概率 空气间隙 |
Effects of Haze Environment on Discharge Path Under Lightning Impulses |
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| DENG He-ming
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HE Zheng-hao
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XU Yu-hang
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MA Jun
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LI Jin.Effects of Haze Environment on Discharge Path Under Lightning Impulses[J].High Voltage Engineering,2009,35(11):2669-2673. |
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| Authors: | DENG He-ming HE Zheng-hao XU Yu-hang MA Jun LI Jin |
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| Affiliation: | DENG He-ming,HE Zheng-hao,XU Yu-hang,MA Jun,LI Jin(School of Environmental Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | Due to enlargement of economical scale and acceleration of urbanization,atmospheric haze is on the rise in China.High density of transmission line corridors or power load areas are located in these regions.In order to understand the effect of haze on the discharge development,mist,flyash and ferric oxide are employed to simulate haze environment.Lightning impulses are applied to carry out to gain insight into the influence of haze on the breakdown voltage and discharge path in this work.The results show tha... |
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| Keywords: | haze discharge path lightning impulse haze diameters percentage air gap |
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