Noise Rejection Strategy and Ezperimental Research on Partial Discharge at DC Voltage

摘要：

Partial discharges (PD) in HVDC equipment are not the predominant degradation factor. However, they can be a failure precursor (particularly when electrical trees are formed), so that monitoring PD could be a tool to infer imminent failures. In order to monitor PD on site, one major problem at DC voltage is the absence of tools able to distinguish noise from PD signals. In this paper, corona, surface and internal discharges measured under DC voltage are extracted from noise and interference resorting to a new strategy of noise rejection at DC voltage.

关键词： partial discharge DC voltage noise rejection cross correlation analysis

作者: Haiqing NIU A.Cavallini G.C.Montanari Yao ZHANG

作者单位: School of Electric Power of South China University of Technology, Guangzhou, 510640, CHINA Department of Electrical Engineering of Bologna University, Bologna, ITALY

会议类型: 国际会议

会议名称: 第九届电介质材料性能与应用国际会议(The 9th International Conference on Properties and Applications of Dielectric Materials)

会议地点: 哈尔滨

会议语种:英文

页码: 489-492

在线出版日期: 2009-07-19（万方平台首次上网日期，不代表论文的发表时间）