120 kV下常压空气纳秒脉冲电晕放电特性

章程; 邵涛; 许家雨; 马浩; 徐蓉; 严萍

doi:10.3788/HPLPB20122403.0597

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120 kV下常压空气纳秒脉冲电晕放电特性

doi: 10.3788/HPLPB20122403.0597

章程^1,2,
邵涛^1,2, ,,
许家雨^1,3,
马浩^1,3,
徐蓉^1,2,
严萍^1,2

1.
中国科学院电工研究所, 北京 1 001 90;
2.
中国科学院电力电子与电气驱动重点实验室, 北京 1 001 90;
3.
中国科学院研究生院, 北京 1 00039

详细信息

通讯作者:
邵涛

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- 被引次数: 0
出版历程
- 收稿日期: 2011-11-01
- 刊出日期: 2012-03-05

Characteristic of nanosecond-pulsed corona discharge at 120 kV in atmospheric-pressure air

Zhang Cheng^1,2,
Shao Tao^{1,2
, ,},
Xu Jiayu^1,3,
Ma Hao^1,3,
Xu Rong^1,2,
Yan Ping^1,2

1.
Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;
2.
Key Laboratory of Power Electronics and Electric Drive,Chinese Academy of Sciences,Beijing 100190,China;
3.
Graduate University of Chinese Academy of Sciences,Beijing 100039,China

摘要

摘要: 使用上升沿15 ns、脉宽30~40 ns的重复频率纳秒脉冲电源对120 kV下大气压空气中管-板电极结构电晕放电进行了实验研究，通过电压电流测量、放电图像拍摄和X射线探测分析了纳秒脉冲电晕放电特性。结果表明：纳秒脉冲电晕放电中存在X射线辐射，但辐射强度较弱，X射线辐射计数随着气隙距离的增大而减少，随着脉冲重复频率的增大而增多；放电空间的残余电荷加强了下一个脉冲到来时的局部电场，从而导致高重复频率下易于出现分散的电晕通道。
- 纳秒脉冲 /
- 电晕放电 /
- 常压空气 /
- 脉冲重复频率 /
- X射线
Abstract: With an excitation of negative repetitive pulses of 15 ns rise time and 30 to 40 ns duration, corona discharge in nanosecond-pulse regime at 120 kV in atmospheric-pressure air is experimentally investigated, and the characteristic of nanosecond-pulsed corona discharge is analyzed by the measurement of electrical discharge parameters, images and X-ray emission. The results show that X-ray emission occurs in nanosecond-pulsed corona discharge, but the intensity is weak. The counts of X rays decrease with the air gap spacing but increase with the pulse repetition frequency. In addition, owing to the fact that the residual particles in the gap enhance the local electric field when the next pulse is applied, separated corona channels are easily obtained at high pulse repetition frequency.
- nanosecond pulse /
- corona discharge /
- atmospheric-pressure air /
- pulse repetition frequency /
- x rays