A compensation technique for rejection of the powerful narrow-band harmonics radiated by power mains is developed for application (in computer-aided system) of detection and registration of the pulse emissions radiated by partial or crown discharges in isolators of high-voltage power lines. The compensation algorithm for rejection of narrow-band interferences consists in the calculation of exact values of frequency, phase and amplitude of the mains’ harmonics by two points in a complex spectrum of the signal near the interference frequency, and in the formation of a compensation signal, which is to be subtracted from an initial signal.
THE SELECTION OF THE PULSE SIGNALS IN THE FACE OF STRONG INTERFERENCE FROM THE POWER OF NETWORKS
2010
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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