An adaptive filtering method for noise suppression in partial discharge measurements

Author

Su, Q.

Author_Institution

Monash Univ., Clayton, Vic, Australia

fYear

1993

fDate

17-20 Oct 1993

Firstpage

481

Lastpage

486

Abstract

An adaptive filtering method which uses the terminal calibration pulse as a reference signal and is capable of suppressing both periodic and random noises in partial discharge (PD) measurements is proposed. Correlation between calibration pulses and PD pulses has been confirmed by theoretical analysis and laboratory tests. Signal distortion of the adaptive filter is minimized, which is significant for PD locations on high-voltage equipment with winding structures. Computer-simulation and experimental results are presented. The simplicity of the adaptive filter structure allows it to be easily implemented with commercial hardware

Keywords

adaptive filters; calibration; charge measurement; interference suppression; partial discharges; random noise; signal processing equipment; PD pulses; adaptive filtering method; computer simulation; high-voltage equipment; noise suppression; partial discharge measurements; periodic noise; random noises; reference signal; terminal calibration pulse; winding structures; Adaptive filters; Calibration; Distortion measurement; Hardware; Laboratories; Noise measurement; Partial discharge measurement; Partial discharges; Pulse measurements; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on

Conference_Location

Pocono Manor, PA

Print_ISBN

0-7803-0966-9

Type

conf

DOI

10.1109/CEIDP.1993.378926

Filename

378926