Patent ID: 11955672
Assignee: WOODWARD, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A hydrogen fuel cell anode control system, comprising:
a hydrogen inlet configured to receive pressurized hydrogen;
a hydrogen outlet configured to be fluidically coupled to an anode manifold of a hydrogen fuel cell;
a recirculation inlet configured to receive overflow hydrogen from the anode manifold;
a hydrogen pressure regulator configured to receive pressurized hydrogen from the hydrogen inlet;
a hydrogen recirculation module configured to mix hydrogen received from the hydrogen pressure regulator and the recirculation inlet, and provide a hydrogen mixture to the hydrogen outlet;
a current sensor configured to provide a first electrical current measurement based on a power input of a compressor configured to provide oxygen to a cathode manifold of the hydrogen fuel cell;
a controller configured to:
measure a differential pressure between the anode manifold and the cathode manifold of the hydrogen fuel cell;
receive, at a current feedback input port, a second electrical current measurement based on a power output of the hydrogen fuel cell; and
control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the measured differential pressure and the second electrical current measurement
receive, at a second current feedback input port, the first electrical current measurement; and
receive the first electrical current measurement and control at least one of the hydrogen pressure regulator or the hydrogen recirculation module based on the first electrical current measurement.