Corona Onset Characteristics of Grading Rings on ±800kV UHVDC Transmission Line

被引：0

作者：

Dai, Mengting ^{[1
]}

Yu, Zhanqing ^{[1
]}

Gao, Zhiye ^{[1
]}

Li, Shi ^{[1
]}

Zeng, Rong ^{[1
]}

Zhang, Bo ^{[1
]}

Li, Min ^{[2
]}

Li, Ruihai ^{[2
]}

Liu, Lei ^{[2
]}

Gao, Chao ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China

[2] Elect Power Res Inst, China So Power Inst, 510000 Guangzhou, Guangdong, Peoples R China

来源：

2014 INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE, ELECTRONICS AND ELECTRICAL ENGINEERING (ISEEE), VOLS 1-3 | 2014年

基金：

中国国家自然科学基金;

关键词：

UHVDC; corona onset gradient; corona experiment; grading rings; Peek's formula;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Corona discharge phenomenon ought to be considered as a key technical problem during the design, construction and operation of UHVDC transmission line. As indispensable and important attachments, research on fittings' corona is a significant issue to electromagnetic environment (EME) of DC transmission project. Fittings' surface field strength provides basis of its corona experiment to test its discharge voltage. It would also provides reference about size design and standardized test of fittings. According to few studies over the past decades, this paper presents corona test set-up plan of grading rings on +/- 800kV UHVDC transmission line to simulate actual situation. Based on Ansoft FEM calculation software, it proposes comparison of surface field strength and its distribution under actual operation and experiment arrangement. Corona onset voltage of specific grading rings is tested. The analysis among theoretical study, simulation and experiment indicates that the onset voltage calculated by Peek's formula is higher than experimental results. Peek's result should

引用

页码：804 / +

页数：2

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