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A New Cross-Correlation Algorithm Based on Distance for Improving Localization Accuracy of Partial Discharge in Cables Lines.
- Source :
-
Energies (19961073) . Sep2020, Vol. 13 Issue 17, p4549. 1p. - Publication Year :
- 2020
-
Abstract
- Locating the partial discharge (PD) source is one of the most effective means to locate local defects in power cable lines. The sampling rate and the frequency-dependent characteristic of phase velocity have an obvious influence on localization accuracy based on the times of arrival (TOA) evaluation algorithm. In this paper, we present a cross-correlation algorithm based on propagation distance to locate the PD source in cable lines. First, we introduce the basic principle of the cross-correlation function of propagation distance. Then we verify the proposed method through a computer simulation model and investigate the influences of propagation distance, sampling rate, and noise on localization accuracy. Finally, we perform PD location experiments on two 250 m 10 kV XLPE power cables using the oscillation wave test system. The simulation and experiment results indicate that compared with traditional TOA evaluation methods, the proposed method has superior locating precision. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PARTIAL discharges
*ALGORITHMS
*PHASE velocity
*DISTANCES
*CABLES
Subjects
Details
- Language :
- English
- ISSN :
- 19961073
- Volume :
- 13
- Issue :
- 17
- Database :
- Academic Search Index
- Journal :
- Energies (19961073)
- Publication Type :
- Academic Journal
- Accession number :
- 145987729
- Full Text :
- https://doi.org/10.3390/en13174549