Patent ID: 11945338
Assignee: BWR INNOVATIONS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 18:
19. A vehicle power system, comprising:
a vehicle, wherein the vehicle comprises an electrical distribution system;
an auxiliary power unit attached to the vehicle and electrically connected to provide electrical power to the vehicle via the electrical distribution system, the auxiliary power unit comprising:
a fuel cell comprising a first DC output;
a pressure vessel adapted to provide pressurized hydrogen to the fuel cell;
an electrical storage unit comprising a DC input coupled to the first DC output of the fuel cell, the electrical storage unit further comprising a second DC output;
an inverter coupled to the second DC output of the electrical storage unit to receive power from the electrical storage unit, the inverter comprising a first AC output, wherein the first AC output provides electrical power to the vehicle via the electrical distribution system; and
a contactor connected between the first AC output and an AC load bus that has an AC voltage, wherein the contactor is activated by a controller, wherein activating the contactor causes the first AC output to supply power in parallel with another auxiliary power unit having a fuel cell that powers the AC load bus, wherein the controller monitors one or more of a phase, a frequency, and a magnitude of an AC voltage of an AC load bus, wherein the controller adjusts one or more of a phase, a frequency, and a magnitude of the first AC output to substantially match the one or more phase, frequency, and magnitude of the AC voltage of the AC load bus, and wherein the controller activates a contactor to connect the first AC output to the AC load bus.