A novel method for ultra-high-frequency partial discharge localization in power transformers using the particle swarm optimization algorithm

verfasst von

Hasan Reza Mirzaei, Asghar Akbari, Ernst Gockenbach, Mojtaba Zanjani, Karim Miralikhani

Abstract

Nowadays, the localization of partial discharge (PD) in power transformers by measurement of ultra-high-frequency (UHF) electromagnetic (EM) waves from a PD source is receiving more attention. This method is based on comparing the differences in the arrival times, to antennas in the transformer, of EM waves emitted from the PD source. From the measured UHF signal, and factoring in the influence of the transformer active part on the EM wave propagation, the correct determination of an EM wave arrival time in the localization algorithm is a critical task that influences the accuracy of the UHF PD localization method. Nearly all weak points in the dielectric system of power transformers generate PD. These discharges gradually degrade the insulation, leading to transformer failure. It is possible to detect these defects in the early stages of PD generation by measuring and analyzing the PD data. Suitable maintenance and repair strategies can then be implemented.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)

Externe Organisation(en)

K.N. Toosi University of Technology
Iran Transfo Corporation

Typ

Artikel

Journal

IEEE Electrical Insulation Magazine

Band

29

Seiten

26-39

Anzahl der Seiten

14

ISSN

0883-7554

Publikationsdatum

08.02.2013

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Elektrotechnik und Elektronik

Elektronische Version(en)

https://doi.org/10.1109/MEI.2013.6457597 (Zugang: Geschlossen)