Estimation of fault location on a power line using the time-frequency domain reflectometry

Seung Ho Doo, Ki Seok Kwak, Jin Bae Park

Research output: Contribution to journalArticle

Abstract

In this paper, we introduce a new method for detecting and estimating faults on a power line using the time-frequency domain reflectometry system. The system rests upon time-frequency signal analysis and uses a chirp signal which is multiplied by Gaussian envelope. The chirp signal is used as a reference signal, and we can get the reflected signal from a fault on a wire. To detect and estimate faults, we analyze the reflected signal by Wigner time-frequency distribution function and normalized time-frequency cross correlation function. In this paper we design an optimal reference signal for power line and implement a system for estimating fault distance on a power line with the TFDR implemented by PXI equipments. This approach is verified by some experiments with HIV 2.25mm power lines.

Original languageEnglish
Pages (from-to)268-275
Number of pages8
JournalTransactions of the Korean Institute of Electrical Engineers
Volume57
Issue number2
Publication statusPublished - 2008 Feb 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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