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NEUTRAL POINT CLAMPED POWER CONVERTER FAULT DETECTION, IDENTIFICATION, AND PROTECTION
NEUTRAL POINT CLAMPED POWER CONVERTER FAULT DETECTION, IDENTIFICATION, AND PROTECTION
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机译：中点钳位电源转换器故障的检测，识别和保护
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摘要
A fault detection, identification, and protection system for a phase leg of a three-level neutral point clamped (NPC) power converter includes a fault detection circuit, the fault detection circuit configured to determine, based on signals received from the two inner switches and two outer switches via their respective gate drivers, the presence of a fault in the phase leg; a fault identification circuit, the fault identification circuit being configured to determine, based on signals from the fault detection circuit, a location of the fault in the phase leg; and a protection circuit, the protection circuit being configured to turn off at least one of the inner switches or outer switches in response to the identification of the location of the fault by the fault identification circuit.
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