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Estimation of Fault Location on a Power Line using the Time-Frequency Domain Reflectometry  

Doo, Seung-Ho (연세대학교 전기전자공학과)
Kwak, Ki-Seok (연세대학교 전기전자공학과)
Park, Jin-Bae (연세대학교 전기전자공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.57, no.2, 2008 , pp. 268-275 More about this Journal
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.
Keywords
Time-Frequency Domain Reflectometry; Power Line; Estimation of Fault Location; Normalized Time-Frequency Cross Correlation Function; Wigner Time-Frequency Distribution Function;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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