Fuel cell system and control method

Details Fuel cell system and control method Fuel cell system and control method

2006-06-20

2006-06-20

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S097000

Reexamination Certificate

active

07064967

ABSTRACT:
A battery voltage Ef of a fuel cell1is detected, and a current instruction value which transformed an electric power instruction value Pfc of the fuel cell is reduced at falling-down of the voltage Ef. A current limiter8makes the current instruction value a limit value at the time of the falling-down of Ef, and reduces the limit value according to the fall of Ef. For example, current instruction value is restricted so as to begin to reduce battery current IFC at voltage drop alarm level (first threshold value), and become zero at voltage drop protection level (second threshold value).

REFERENCES:
patent: 6404655 (2002-06-01), Welches
patent: 2004/0115487 (2004-06-01), Ichinose et al.
patent: 2005/0048337 (2005-03-01), Matsubayashi et al.
patent: 2005/0052221 (2005-03-01), Kohnotoh et al.
patent: 2000-21429 (2000-01-01), None

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