A fault classification method based on spectrum of fault component for EHV lines

Author

Wang, X.G. ; Huang, S.F. ; Liu, Q.K.

Author_Institution

Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control under Minist. of Educ., North China Electr. Power Univ., Beijing

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

6

Abstract

This paper proposes a fault classification scheme for transmission lines based on spectrum of fault component. First it analyses the spectrum of fault component, then the characters of power frequency and nature frequencies in two data windows are used to identify fault type and fault phase respectively. The scheme performance was proven using ATP/EMTP simulations in a 500-kV power system considering different fault types and fault locations. The results show that the scheme works quickly and is not impacted by harmonics and the DC offset. It is also not sensitive to sampling rate and fault inception angle.

Keywords

fault diagnosis; power transmission faults; power transmission lines; ATP; DC offset; EHV lines; EMTP simulations; data windows; fault classification method; fault component spectrum; fault inception angle; power frequency; sampling rate; transmission lines; voltage 500 kV; EMTP; Fault diagnosis; Fault location; Frequency; Power system analysis computing; Power system faults; Power system harmonics; Power system simulation; Power transmission lines; Sampling methods; Fault classification; Fault component; High frequency signals; Nature frequencies; Spectrum; Transmission line; Traveling wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4595996

Filename

4595996