Research Advances of the Detection Technology for Kinetic Behavior and Weak Discharge of the Micro-Nano Dust
Xue Naifan1, Li Qingmin1, Liu Zhipeng2, Chang Yanan1, Liang Ruixue2
1. State Key Lab of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China; 2. Beijing Key Lab of HV and EMC North China Electric Power University Beijing 102206 China
Abstract：In the process of production, installation and operation of gas insulated switchgear/gas insulated transmission lines(GIS/GIL)equipment, it is inevitable to produce micron-nano scale dust. This kind of micro-scale dust is not easy to be detected, and the physical mechanism of its charge movement is not clear, leading to strong security risks. In this paper, the research progress at home and abroad was reviewed, including the charge movement behavior and characterization of dust, dust concentration detection, dust visualization detection technology and the dust induced weak discharge mechanism. On this basis, two key problems and technical difficulties in the study of micro-nano dust were further sorted out. For the study of random charge mechanism and spatial-temporal dynamic behavior characteristics of micro-nano dust, it is necessary to break through the rapid identification method of micro-nano dust and the effective detection technology of spatial concentration based on measurement. Among them, the visual detection technology of micro-nano dust motion behavior is the development direction. Aiming at the physical mechanism of weak discharge induced by charged micro-nano dust, it is necessary to develop a high sensitivity detection method based on femtosecond laser and terahertz wave technology by using the characteristics of discharge spectroscopy. The effective solution of the above problems can provide basic support for the treatment of insulation defects and discharge phenomena caused by micro-nano dust in GIS/GIL.
薛乃凡, 李庆民, 刘智鹏, 常亚楠, 梁瑞雪. 微纳粉尘运动行为与微弱放电探测技术研究进展[J]. 电工技术学报, 2022, 37(13): 3380-3392.
Xue Naifan, Li Qingmin, Liu Zhipeng, Chang Yanan, Liang Ruixue. Research Advances of the Detection Technology for Kinetic Behavior and Weak Discharge of the Micro-Nano Dust. Transactions of China Electrotechnical Society, 2022, 37(13): 3380-3392.
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