Overvoltage Study on UHV AC Half Wave Length Transmission System

被引：0
|
作者：
Gu, Peng [1 ]
Han, Bin [1 ]
Xiang, Zutao [1 ]
机构：
[1] China Elect Power Res Inst, Beijing 100192, Peoples R China
来源：
10TH ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC 2018) | 2018年
关键词：
Half wave length transmission; Ultra high voltage; Switching overvoltage; Grounding fault;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In China some resource bases in the west are located at a distance of about 2800 similar to 3000km from the load centers in the east. AC Half Wave Length transmission in UHV stage is an alternate for the long distance and large capacity power transmission. A study model of half wave length line transmission system was established. The power frequency overvoltage, switching overvoltage and grounding fault overvoltage were studied using EMTP. The study result shows that the highest overvoltage occurs during grounding faults. The amplitude and waveform of overvoltage during grounding fault are affected by fault type, fault location as well as the characteristic of the protection system. The use of metal oxide arresters to limit overvoltage is discussed. The parameters and configuration of metal oxide arresters is suggested.
引用
收藏
页码：237 / 245
页数：9
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