作者
Fuping Zeng, Zhicheng Lei, Xu Yang, Ju Tang, Qiang Yao, Yulong Miao
发表日期
2019/2/27
期刊
IEEE Transactions on Power Delivery
卷号
34
期号
4
页码范围
1383-1392
出版商
IEEE
简介
This study mainly aims to obtain the decomposition characteristics of SF6 under various degrees of negative partial discharge (PD) and establish a method for evaluating the internal PD fault for gas-insulated equipment (GIE). Thus, metal protrusion, a frequent insulation defect in DC GIE, was used in the study of PD characteristics from the initial discharge to the near breakdown process. Then, seven parameters for characterizing the development stage of PD were extracted, and the fuzzy C-means clustering algorithm was used for the categorization of PD into three degrees, namely, slight, medium, and severe. We performed SF6 decomposition experiments on the PD degrees to obtain the decomposition characteristics. Results show that the SF6 decomposition characteristics (formation and content variation of five characteristic components, namely, CF4, CO2, SO2F2, SOF2, and SO2) are closely related to PD …
学术搜索中的文章
F Zeng, Z Lei, X Yang, J Tang, Q Yao, Y Miao - IEEE Transactions on Power Delivery, 2019