Systems and methods of controlling fuel cell electric power generation systems.
In one embodiment, the control system comprises a current detector for measuring
an output current of the fuel cell stack and generating a corresponding current
signal, a flow detector for measuring a flow rate of a process gas stream and generating
a corresponding flow rate signal, a sensor for measuring a concentration of a component
of the reformate stream and generating a corresponding concentration signal, and
a processor. The processor is configured to maintain hydrogen utilization in the
fuel cell stack at about a user selectable value or within a user selectable range
by generating an output signal as a function of the current signal, the flow rate
signal and the first concentration signal. The output signal is employed in controlling
a process variable impacting hydrogen utilization.
