Abstract: A portable fuel cell system includes a fuel cell having a plurality of flow inputs and a power output, a temperature sensor configured to measure operating temperature of the fuel cell, a power output sensor coupled to the fuel cell and configured to measure a power parameter related to fuel cell power output, a controllable power converter, coupled to the power output of the fuel cell, that transfers power from the fuel cell to the fuel cell system, and a flow control device coupled to a first flow input and configured to control a first one of the flow inputs into the fuel cell. The system further includes a fuel cell system controller, coupled to the fuel cell, the power output, the temperature sensor, the power output sensor, the controllable power converter, and the flow control device.

Abstract: A fuel cell system having an air quality sensor suite includes a fuel cell having an anode and a cathode, a fuel source providing a fuel flow, a fuel flow rate sensor having a fuel flow rate sensor output, a fuel flow control device, a fuel oxidizer flow conduit, a first mixing region coupled to the fuel source and the fuel oxidizer flow conduit, an anode chamber coupled to the anode, a combustion oxidizer flow conduit, a second mixing region coupled to the combustion oxidizer flow conduit, and at least one oxidizer flow rate sensor having an oxidizer flow rate sensor output. The system further includes at least one oxidizer pump, an air quality sensor having an air quality sensor output, and a control system coupled to the fuel flow rate sensor output, the oxidizer flow rate sensor output, and the air quality sensor output.

Abstract: A portable fuel cell system includes a fuel cell having a plurality of flow inputs and a power output, a temperature sensor configured to measure operating temperature of the fuel cell, a power output sensor coupled to the fuel cell and configured to measure a power parameter related to fuel cell power output, a controllable power converter, coupled to the power output of the fuel cell, that transfers power from the fuel cell to the fuel cell system, and a flow control device coupled to a first flow input and configured to control a first one of the flow inputs into the fuel cell. The system further includes a fuel cell system controller, coupled to the fuel cell, the power output, the temperature sensor, the power output sensor, the controllable power converter, and the flow control device.