Separation of sources in radiofrequency measurements of partial discharges using time-power ratio maps

被引：41

作者：

Albarracin, R. ^{[1
]}

Robles, G. ^{[1
]}

Martinez-Tarifa, J. M. ^{[1
]}

Ardila-Rey, J. ^{[2
]}

机构：

[1] Univ Carlos III Madrid, Dept Elect Engn, Leganes 28911, Spain

[2] Univ Tecn Federico Santa Maria, Dept Elect Engn, Santiago, Chile

来源：

ISA TRANSACTIONS | 2015年 / 58卷

关键词：

Partial discharges; Dielectric materials; Condition monitoring; RF measurements; VHF and UHF measurements; Vivaldi antennas; Spectral power; CLASSIFICATION;

D O I：

10.1016/j.isatra.2015.04.006

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Partial discharges measurement is one of the most useful tools for condition monitoring of high-voltage (HV) equipment. These phenomena can be measured on-line in radiofrequency (RF) with sensors such as the Vivaldi antenna, used in this paper, which improves the signal-to-noise ratio by rejecting FM and low-frequency TV bands. Additionally, the power ratios (PR), a signal-processing technique based on the power distribution of the incoming signals in frequency bands, are used to characterize different sources of PD and electromagnetic noise (EMN). The calculation of the time length of the pulses is introduced to separate signals where the PR alone do not give a conclusive solution. Thus, if several EM sources could be previously calibrated, it is possible to detect pulses corresponding to PD activity. (C) 2015 ISA. Published by Elsevier Ltd. All rights reserved.

引用

页码：389 / 397

页数：9

共 19 条

[1]

[Anonymous], 9 EUR MICR C

[2]

[Anonymous], 2009, ELECT POWER EQUIPMEN

[3]

[Anonymous], 2000, 60270 IEC

[4] Partial Discharge and Noise Separation by Means of Spectral-power Clustering Techniques [J].

Ardila-Rey, J. A. ;

Martinez-Tarifa, J. M. ;

Robles, G. ;

Rojas-Moreno, M. V. .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2013, 20 (04) :1436-1443

[5] Compositional Modeling of Partial Discharge Pulse Spectral Characteristics [J].

Baker, Pete C. ;

Stephen, Bruce ;

Judd, Martin D. .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2013, 62 (07) :1909-1916

[6]

Boggs S. A., 1990, ELECT INSULATION MAG, V6, P11

[7]

Constantine ABalanis., 2005, MICROSTRIP ANTENNAS, Vthird

[8]

Gao WS, 2013, IEEE T DIELECT EL IN, V20, P782

[9] DISPERSION CHARACTERISTICS FOR WIDE SLOTLINES ON LOW-PERMITTIVITY SUBSTRATES [J].

JANASWAMY, R ;

SCHAUBERT, DH .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1985, 33 (08) :723-726

[10] BROAD-BAND COUPLERS FOR UHF DETECTION OF PARTIAL DISCHARGE IN GAS-INSULATED SUBSTATIONS [J].

JUDD, MD ;

FARISH, O ;

HAMPTON, BF .

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 1995, 142 (03) :237-243

← 1 2 →