A STUDY OF TRANSIENT-BASED PROTECTION USING WAVELET ENERGY ENTROPY FOR POWER SYSTEM EHV TRANSMISSION LINE

被引：0
|
作者：
Yang, Ming-Yu [1 ]
Yang, Yu-Kun [1 ]
机构：
[1] N China Elect Power Univ, Key Lab Power Syst Protect Dynam Secur Monitoring, Minist Educ, Baoding 071003, Peoples R China
来源：
PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON WAVELET ANALYSIS AND PATTERN RECOGNITION | 2010年
关键词：
Wavelet energy entropy; Transient-based protection; EHV transmission line; Wavelet transform;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Wavelet energy entropy has a small calculation amount, and it has a unique sensibility to slightly change of the dynamic system parameters. This paper presents a novel transient-based protection for power system EHV transmission line, which employ the value of wavelet energy entropy to reflect the different energy distribution between internal and external fault. The basic principle of the protection is according to the attenuation effect of busbar capacitance and line trap to the high-frequency components. Simulation results show that the proposed protection criterion has high sensitivity and reliability, and capable of providing correct responses under conditions of different fault types, positions, path resistances, and inception angles.
引用
收藏
页码：283 / 288
页数：6
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