Digital simulation of fault location on EHV lines using wideband spread spectrum techniques

Author

Taylor, V. ; Faulkner, M. ; Kalam, A. ; Haydon, J.

Author_Institution

Dept. of Electr. & Electron. Eng., Victoria Univ. of Technol., Melbourne, Vic., Australia

Volume

142

Issue

1

fYear

1995

fDate

1/1/1995 12:00:00 AM

Firstpage

73

Lastpage

80

Abstract

Spread spectrum techniques perform well in high-noise environments such as power lines, and their use in radar ranging is well known. Existing power line carrier (PLC) equipment may be used to transmit a direct sequence signal down a faulted EHV line. The fault position may then be calculated from correlation analysis of the reflected waveforms. This fault-location process has been simulated on a digital computer by taking into account the frequency variation of the PLC interface and line parameters over the spread spectrum bandwidth. The effect of waveform characteristics and fault location are examined for a 100 km double transposed line with a single phase to ground fault. Results indicate that permanent faults may be located to within 0.5 km

Keywords

carrier transmission on power lines; correlation methods; digital simulation; fault location; power system analysis computing; power transmission lines; spread spectrum communication; EHV lines; correlation analysis; digital computer; digital simulation; direct sequence signal transmission; double transposed line; fault location; frequency variation; permanent faults; power line carrier equipment; reflected waveforms; single phase to ground fault; waveform characteristics; wideband spread spectrum techniques;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:19951588

Filename

342235