Application of wavelet transform in travelling wave protection

被引：41

作者：

Liang, J ^{[1
]}

Elangovan, S ^{[1
]}

Devotta, JBX ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect Engn, Singapore 119260, Singapore

来源：

INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2000年 / 22卷 / 08期

关键词：

travelling wave protection; wavelet transform; wavelet correlation function; wavelet matched filter;

D O I：

10.1016/S0142-0615(00)00033-8

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：

In this paper, the correlation function-based travelling wave protection algorithm is analysed from the viewpoint of wavelet transform (WT), and a wavelet correlation function (WCF) algorithm is proposed to replace it. In the new algorithm, the multi-scale spline WT is used to detect the edges of the travelling wave signal, and the WCF is then employed to fulfil the correlation operation in the WT domain instead of the time domain. This enhances the peak intensity and the noise rejection ability of the algorithm. The performance of this algorithm is illustrated by simulation results. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：537 / 542

页数：6

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