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

Author

Chen, Wei ; Malik, O.P. ; Yin, Xianggen ; Chen, Deshu ; Zhang, Zhe

Author_Institution

Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

18

Issue

4

fYear

2003

Firstpage

1134

Lastpage

1139

Abstract

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.

Keywords

power transmission lines; power transmission protection; relay protection; signal processing; wavelet transforms; current protective relays; signal-processing; transmission line protection; traveling wave arrival; ultra high speed UHV/EHV transmission line protective relay; ultra high speed directional protection; wavelet singularity detection theory; wavelet-based directional transmission line protection; Artificial neural networks; Fault diagnosis; Power system faults; Power system protection; Power system relaying; Power system stability; Power system transients; Protective relaying; Voltage; Wavelet transforms;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.817511

Filename

1234660