Study of wavelet-based ultra high speed directional transmission line protection

被引:100
作者
Chen, W [1 ]
Malik, OP [1 ]
Yin, XG [1 ]
Chen, DS [1 ]
Zhang, Z [1 ]
机构
[1] Huazhong Univ Sci & Technol, Wuhan, Peoples R China
关键词
directional; power system protection; traveling wave; wavelet;
D O I
10.1109/TPWRD.2003.817511
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel wavelet-based directional protection scheme is presented in this paper. Using the theory of wavelet singularity detection as a powerful signal-processing tool, the initial arrival of the traveling wave and its sign can be identified reliably. Characteristics of the proposed directional protection algorithm are analyzed and results of simulation studies are-given. The wavelet-based directional protection scheme solves several problems existing in current protective relays and is suitable for use as an ultra high speed UHV/EHV transmission line protective relay.
引用
收藏
页码:1134 / 1139
页数:6
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