Separation of multiple sources in PD measurements using an amplitude-frequency relation diagram

Author

Kuljaca, Nikola ; Meregalli, Sergio ; Contin, Alfredo ; Ukovich, Anna

Author_Institution

ERSE S.p.A., Milan, Italy

fYear

2010

fDate

4-9 July 2010

Firstpage

1

Lastpage

4

Abstract

A new procedure for the pulse signal separation generated by multiple sources during Partial Discharge (PD) measurements, is presented in the paper. It is based on the analysis of signals projected into a 3D Amplitude-Frequency Space (AFS) obtained by selecting three different frequencies from the FFT of the recorded signals. Assuming that the same source can exhibit signals having similar shape, those which show different shapes i.e. different frequency spectrum, are grouped differently in this space. The DBSCAN algorithm is adopted here to select the different groups (clusters) of 3D AFS. The relevant Phase Resolved PD sub-patterns are derived accordingly. A case study is also discussed to show the validity of the method.

Keywords

partial discharge measurement; signal classification; source separation; 3D amplitude frequency space; DBSCAN algorithm; PD measurements; amplitude frequency relation diagram; multiple sources separation; partial discharge measurement; phase resolved PD subpattern; pulse signal separation; Classification algorithms; Clustering algorithms; Noise; Partial discharge measurement; Partial discharges; Shape; Three dimensional displays; Partial Discharges; clustering; diagnostics; signal classification; solid insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics (ICSD), 2010 10th IEEE International Conference on

Conference_Location

Potsdam

Print_ISBN

978-1-4244-7945-0

Electronic_ISBN

978-1-4244-7943-6

Type

conf

DOI

10.1109/ICSD.2010.5568142

Filename

5568142