METHOD AND APPARATUS FOR DIAGNOSING FAULT OF FUEL CELL STACK BASED ON MEASUREMENT OF STACK CURRENT
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United States of America Patent
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Jun 26, 2014
app pub date -
Dec 19, 2013
filing date -
Dec 20, 2012
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Abstract
Provided is an apparatus and method for diagnosing a fault of a fuel cell stack based on measurement of a stack current. The apparatus includes an alternating-current (AC) generation circuit configured to apply an AC to a fuel cell stack driven by a basic operating current (direct-current: DC), a current measurement circuit configured to measure a current of the fuel cell stack caused by the DC applied to the fuel cell stack, and a Micom configured to diagnose a fault of the fuel cell stack on the basis of a current measurement result of the current measurement circuit.
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