Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0142-0615(00)00033-8
Title: Application of wavelet transform in travelling wave protection
Authors: Liang, J. 
Elangovan, S. 
Devotta, J.B.X. 
Issue Date: 1-Nov-2000
Source: Liang, J., Elangovan, S., Devotta, J.B.X. (2000-11-01). Application of wavelet transform in travelling wave protection. International Journal of Electrical Power and Energy System 22 (8) : 537-542. ScholarBank@NUS Repository. https://doi.org/10.1016/S0142-0615(00)00033-8
Abstract: In this paper, the correlation function-based travelling wave protection algorithm is analyzed 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.
Source Title: International Journal of Electrical Power and Energy System
URI: http://scholarbank.nus.edu.sg/handle/10635/50533
ISSN: 01420615
DOI: 10.1016/S0142-0615(00)00033-8
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