ARC FAULT DETECTION USING CURRENT SIGNAL DEMODULATION, OUTLIER ELIMINATION, AND AUTOCORRELATION ENERGY THRESHOLDS

ARC FAULT DETECTION USING CURRENT SIGNAL DEMODULATION, OUTLIER ELIMINATION, AND AUTOCORRELATION ENERGY THRESHOLDS

A series PV arc fault detection method and apparatus demodulates a current signal provided by a DC power source to an inverter to eliminate a DC component and periodic noise. Autocorrelation coefficients are generated from the demodulated current signal to monitor noise energy and variation and, bas...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Ball, Roy A, Kim, Jonathan C, Lehman, Bradley M
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A series PV arc fault detection method and apparatus demodulates a current signal provided by a DC power source to an inverter to eliminate a DC component and periodic noise. Autocorrelation coefficients are generated from the demodulated current signal to monitor noise energy and variation and, based on the noise energy, a determination is made if an arc fault has occurred.