METHOD AND APPARATUS FOR ADJUSTING OXYGEN PRESSURE OF FUEL CELL SYSTEM

• Main Authors: BYUN JUNG-YEON, CHOI SUNG BUM, LEE JONG HYUN
• Format: Patent
• Language: English
• Published: 19.11.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

Disclosed are a method and an apparatus for adjusting a partial pressure of oxygen that is supplied to a fuel cell system. The oxygen partial pressure may be adjusted by primarily increasing an SR of air and by secondarily increasing a closing ratio of an opening and closing valve when a concentration of oxygen in the air is detected to be reduced. The oxygen partial pressure adjusting device of a fuel cell system includes: an air supply; a fuel supply; an oxygen sensor that is installed in an air supply line and detect a concentration of oxygen; an opening and closing valve and adjust an air supply pressure; and a controller that adjusts a partial pressure of oxygen using the opening and closing valve and a concentration of oxygen that is detected by the oxygen sensor.