A new protection criterion for high-voltage transmission line based on two-end transient signals

Author

Yizhuang, Huang ; Xia Mngchao ; Woquan, Zhao ; Yinlai, Liu

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

3

fYear

2002

fDate

28-31 Oct. 2002

Firstpage

1910

Abstract

A new criterion of high-speed protection for high voltage transmission line based on the wavelet transform of two-end data is presented. By comparing the Lipschitz exponent and time of the wavelet modulus maxima of voltages of both ends, in-zone faults and out-zone faults and switching operations can be distinguished. Simulations are carried out for testing the criterion, and the influences of fault locations and noises are discussed.

Keywords

fault location; power transmission faults; power transmission lines; power transmission protection; switching; wavelet transforms; 500 kV; Lipschitz exponent; edge detection; fault identification; fault locations; high-speed protection; high-voltage transmission line; in-zone faults; noises; out-zone faults; protection criterion; switching operations; two-end transient signals; wavelet modulus maxima; wavelet transform; Discrete wavelet transforms; Power system protection; Power system reliability; Power system transients; Power transmission lines; Signal analysis; Transmission lines; Voltage; Wavelet analysis; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering

Print_ISBN

0-7803-7490-8

Type

conf

DOI

10.1109/TENCON.2002.1182711

Filename

1182711