Title :
Application of digital signal processing techniques for noise suppression in partial discharge measurements
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia
Abstract :
Interference is probably the biggest problem for partial discharge (PD) measurements on high voltage equipment at industrial sites. Interference can enter the measurement circuit from various origins and behaviour in complicated ways. Techniques for suppressing a certain kind of interference should be developed according to its characteristics. It has been found that digital signal processing techniques are promising in alleviating the interference problem. Some of these techniques are briefly discussed including signal alignments by cross correlation, separation of PDs from different discharge sources, and adaptive filtering using a calibration pulse as a reference
Keywords :
adaptive filters; charge measurement; interference suppression; partial discharges; power apparatus; signal processing; adaptive filtering; calibration pulse; cross correlation; digital signal processing; high voltage equipment; industrial sites; measurement circuit; noise suppression; partial discharge measurements; signal alignments; Adaptive filters; Circuit noise; Circuit testing; Digital signal processing; Fault location; Interference suppression; Partial discharge measurement; Partial discharges; Voltage; Working environment noise;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-1307-0
DOI :
10.1109/ICPADM.1994.414082
