GIS中金属颗粒诱发PD蠕变放电发展过程的研究

2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE) Pub Date : 2020-09-06 DOI:10.1109/ICHVE49031.2020.9279927

Longtao Ma, Yulun Chen, Dingge Yang, Bo Niu, Yanhua Han, Dan Xu, Guanjun Zhang

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引用次数: 2

摘要

局部放电的检测与识别对气体绝缘开关设备的状态监测具有重要意义。研究了GIS中金属颗粒诱发PD蠕变放电的发展过程。为此采用了根据GIS实际运行情况搭建的GIS仿真实验平台。采用脉冲电流法测量了各阶段的放电模式，同时提取了能有效表征局部放电严重程度的特征参数。利用增强CCD (ICCD)记录PD的演变过程。最后，通过K-means聚类算法将PD蠕变放电发展分为3个阶段，分别为电晕放电为主阶段、电晕放电与表面流光放电并存阶段和表面流光放电为主阶段。

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Study on the PD Creeping Discharge Development Process Induced by Metallic Particles in GIS

Partial discharge (PD) detection and recognition are of great slgnificance to the condition monitoring of gas-insulated switchgear (GIS). The study focuses on the development process of PD creeping discharge induced by metallic particles in GIS. A GIS simulation experiment platform which was set up according to the actual operating conditions of GIS was employed for this. The discharge pattern of various stages was measured by pulse current method, meanwhile the characteristic parameters which can characterize the severity of PD effectively were extracted. Intensified CCD (ICCD) was also used to record the evolution process of PD. At last, the PD creeping discharge development was divided into 3 stages, which was manifested by K-means clustering algorithm, and they are corona discharge domination, coexistence of corona discharge and surface streamer discharge and surface streamer discharge domination respectively.

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2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)

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