System for detection of a ground fault in a high resistance ground network

System for detection of a ground fault in a high resistance ground network

A method is provided for detection of a ground fault in a high resistance network in a voltage source power conversion circuit comprising a power converter that converts incoming AC power to DC power applied to a DC bus and an inverter that converts DC power from the DC bus to output AC power. The m...

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Hauptverfasser: Liu, Zhijun, Kerkman, Russ J, Skibinski, Gary, Wei, Lixiang, Kirschnik, David W, Rodriguez-Valdez, Carlos Daniel, Brown, Brian Patrick, Lukaszewski, Richard A
Format: Patent
Sprache:eng ; fre ; ger
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CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator Liu, Zhijun
Kerkman, Russ J
Skibinski, Gary
Wei, Lixiang
Kirschnik, David W
Rodriguez-Valdez, Carlos Daniel
Brown, Brian Patrick
Lukaszewski, Richard A
description A method is provided for detection of a ground fault in a high resistance network in a voltage source power conversion circuit comprising a power converter that converts incoming AC power to DC power applied to a DC bus and an inverter that converts DC power from the DC bus to output AC power. The method includes detecting a midpoint-to-ground voltage between a low side of the DC bus and a ground potential and detecting the presence of a ground fault in a high resistance network based upon the detected midpoint-to-ground voltage.
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title System for detection of a ground fault in a high resistance ground network
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