×

FUEL CELL SYSTEM AND ITS CONTROL METHOD

  • US 20100203409A1
  • Filed: 07/23/2008
  • Published: 08/12/2010
  • Est. Priority Date: 07/30/2007
  • Status: Active Grant
First Claim
Patent Images

1. A fuel cell system comprising:

  • a fuel cell that generates electric power using a fuel gas and an oxidizing gas as reaction gases;

    a current controlling section that controls a current of the fuel cell so that the current becomes a target current value;

    a voltage controlling section that controls a voltage of the fuel cell so that the voltage becomes a target voltage value; and

    a heat generation quantity controlling section that controls a heat generation quantity, by calculating a necessary heat quantity that is necessary for the fuel cell system and determining the target current value of the current controlling section and a target voltage value of the voltage controlling section so as to generate heat in the necessary required heat quantity, whereinthe heat generation quantity controlling section determines that the target current value=(Q+P)/Vmax, and the target voltage value=(Vmax*P)/(Q+P), where P is required output power, which is required output power for the fuel cell, Q is the necessary heat quantity, and Vmax is an electromotive force as a theoretical output voltage of the fuel cell.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×