Title :
An adaptive filtering method for noise suppression in partial discharge measurements
Author_Institution :
Monash Univ., Clayton, Vic, Australia
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;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378926
