US 11,855,322 B1
Fuel cell system air throttle for hybrid power control
Matthew P. Wilson, Groton, CT (US); Michael E. Gorman, Wellesley, MA (US); and Samuel J. Angles, Groton, CT (US)
Assigned to NIMBUS POWER SYSTEMS, INC., Groton, CT (US)
Filed by NIMBUS POWER SYSTEMS INC, Groton, CT (US)
Filed on Dec. 7, 2022, as Appl. No. 18/077,112.
Int. Cl. H01M 8/04858 (2016.01); H01M 8/04029 (2016.01); H01M 8/04082 (2016.01); H01M 8/04537 (2016.01); H01M 8/2457 (2016.01); H01M 8/04746 (2016.01)
CPC H01M 8/0494 (2013.01) [H01M 8/04029 (2013.01); H01M 8/0491 (2013.01); H01M 8/04201 (2013.01); H01M 8/04604 (2013.01); H01M 8/04656 (2013.01); H01M 8/04753 (2013.01); H01M 8/04917 (2013.01); H01M 8/2457 (2016.02)] 17 Claims
OG exemplary drawing
 
1. A hybrid power system, comprising:
a fuel cell power plant comprising an energy storage system connected in parallel with a fuel cell system; the fuel cell system comprising a controller, a fuel flow system, an air flow system, and a water management system;
an electric load operably connected to the fuel cell power plant;
the controller operable to receive, as inputs, a state of charge of the energy storage system and a power demand from the electric load; calculate a set point to proportion a current split between the fuel cell system and the energy storage system; and execute commands, as output, to control operation of the air flow system at the set point, wherein the air flow system actively regulates a proportion of current flow between the fuel cell system and the energy storage system to meet the power demand from the electric load.