CPC H01M 8/0494 (2013.01) [H01M 8/0491 (2013.01); H01M 8/04231 (2013.01); H01M 8/04358 (2013.01); H01M 8/04559 (2013.01); H01M 8/04589 (2013.01); H01M 8/04619 (2013.01); H01M 8/04723 (2013.01)] | 20 Claims |
1. A system comprising:
a fuel cell stack including a plurality of fuel cells,
a controller configured to:
determine a current density of the fuel cell stack,
determine a threshold voltage value based on a polarization curve of the fuel cell stack, and
compare a measured average fuel cell voltage value and the threshold voltage value,
wherein the controller is configured to:
in response to the measured average fuel cell voltage value being greater than the threshold voltage value, set an allowed current and power draw of the fuel cell stack at a first predefined threshold value, and
in response to the measured average fuel cell voltage value being less than the threshold voltage value, set the allowed current and power draw of the fuel cell stack at a second predefined threshold value, wherein the first predefined threshold value is greater than the second predefined threshold value.
|