Partial discharge source classification and de-noising in rotating machines using Discrete Wavelet Transform and directional coupling capacitors

Author

Kashiha, Mohammad Amin ; Tootaghaj, Diman Zad ; Djamshidi, Dolat

Author_Institution

Commun. Dept., Niroo Res. Inst. (NRI), Tehran, Iran

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

This paper introduces a new method to separate PD from other disturbing signals present on the high voltage generators and motors. The method is based on combination of a pattern classifier (i.e. discrete wavelet transform (DWT)) to de-noise PD and time-of-arrival method to separate PD sources. Furthermore we will show that it can recognize PD sources including rotating machine´s internal and external (e.g. on the bus bar) discharge pulses.

Keywords

discrete wavelet transforms; electric machines; machine testing; partial discharge measurement; power capacitors; signal classification; signal denoising; time-of-arrival estimation; PD source denoising; bus bar; directional coupling capacitors; discharge pulses; discrete wavelet transform; high voltage generators; high voltage motors; partial discharge source classification; rotating machines; time-of-arrival method; Capacitors; Discrete wavelet transforms; Filters; Fourier transforms; Interference; Noise reduction; Partial discharges; Rotating machines; Time frequency analysis; Voltage; Coupling capacitor; De-noising; Discrete wavelet transform; Partial discharge; Rotating machines; Time-Of-Arrival;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009

Conference_Location

Seoul

Print_ISBN

978-1-4244-5230-9

Electronic_ISBN

978-1-4244-5230-9

Type

conf

DOI

10.1109/TD-ASIA.2009.5356903

Filename

5356903