NOISE PROPAGATION IMMUNITY OF A MULTI-STRING ARC FAULT DETECTION DEVICE

NOISE PROPAGATION IMMUNITY OF A MULTI-STRING ARC FAULT DETECTION DEVICE

Systems and methods of detecting arcing in a DC power system that can provide improved noise propagation immunity. The system includes at least two current sensors for monitoring at least two current outputs, respectively. The current sensors have reverse polarities, and are configured and arranged...

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Hauptverfasser: MARTIN LEE, KAWATE KEITH W, PELLON CHRISTIAN V, KANG JIANHONG
Format: Patent
Sprache:eng
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator MARTIN LEE
KAWATE KEITH W
PELLON CHRISTIAN V
KANG JIANHONG
description Systems and methods of detecting arcing in a DC power system that can provide improved noise propagation immunity. The system includes at least two current sensors for monitoring at least two current outputs, respectively. The current sensors have reverse polarities, and are configured and arranged in parallel to provide a combined current output signal. The current sensors monitor the respective current outputs, which are provided for monitoring by the current sensors over at least two adjacent conductors. If arcing occurs at a location on a first conductor, then arcing (adjacent conductor crosstalk), having an arc current signature like that of the arcing on the first conductor, can occur at a location on the other adjacent conductor. The system can effectively cancel out such adjacent conductor crosstalk within a photovoltaic (PV) system, thereby improving the capability of an arc fault detection device for detecting arcing at the PV string level.
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title NOISE PROPAGATION IMMUNITY OF A MULTI-STRING ARC FAULT DETECTION DEVICE
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