FUEL CELL CONTROL SYSTEM

PROBLEM TO BE SOLVED: To enable a fuel cell control system to supply the oxidation gas of a volume required by the exhaust hydrogen gas combustor of the fuel cell stack by adjusting without exhausting to the outside air. SOLUTION: In the fuel cell control system, the assumed exhaust hydrogen gas flo...

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Bibliographische Detailangaben
1. Verfasser:	HASHIGAYA HIROAKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To enable a fuel cell control system to supply the oxidation gas of a volume required by the exhaust hydrogen gas combustor of the fuel cell stack by adjusting without exhausting to the outside air. SOLUTION: In the fuel cell control system, the assumed exhaust hydrogen gas flow-rate Qh at the purge valve 3 operation is estimated based on the hydrogen inlet temperature and inlet pressure of the fuel cell stack 1 by an exhaust hydrogen flow-rate estimating part 26, and the target value of the exhaust air flow-rate Qair 3 supplied to an exhaust hydrogen combustor 4 according to the exhaust hydrogen gas estimated flow-rate Qh is established by an air target flow-rate setting part 23 at the purging, and the air flow-rate is controlled by a target revolution setting part 25 of the compressor 11 so that it becomes the above air target flow-rate Qair. COPYRIGHT: (C)2004,JPO