HHT Based Non-unit Transmission Line Protection Using Traveling Wave

被引：0
|
作者：
Qin, Xiao'an [1 ]
Zeng, Xiangjun [1 ]
Zhang, Yijie [1 ]
Wu, Zhihua [1 ]
机构：
[1] Changsha Univ Sci & Technol, Sch Sci & Informat Engn, Changsha, Hunan, Peoples R China
来源：
2009 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, VOLS 1-8 | 2009年
关键词：
traveling wave protection; non-unit protection; HHT; protective relay;
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：
A novel tine non-unit protection principle based on traveling wave is proposed in the paper, it measures the instantaneous frequency of traveling wave crest at the point of transmisission line near the line trap. If the frequency is large than the lower cut off frequency of line trap, internal fault is thus detected. The influence of line trap for the instantaneous frequency is also investigated. Hilbert-Huang Transform (HHT) is used in extracting the special frequency signals. Theoretical analysis and EMTP simulation results show the protection is correction.
引用
收藏
页码：1264 / 1268
页数：5
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