Patent ID: 8232676
Filing Date: 2012-07-31
Classification: H02J,Y02B

Abstract:
1. A system for providing power, the system comprising: a fuel cell system configured to provide a first direct current, wherein the first direct current is provided to a second inverter on a split bus having a positive bus, a negative bus, and a neutral bus; a system monitor configured to detect a power condition in which a load does not receive sufficient power from the fuel cell system by monitoring at least one of the fuel cell system and the load; a first inverter in electrical communication with the fuel cell system and a grid, wherein the first inverter is configured to receive at least a portion of the first direct current from the fuel cell system, convert the received portion of the first direct current to a second alternating current, and provide the second alternating current to the grid and to terminate providing the second alternating current to the grid in response to detection by the system monitor of the power condition; the second inverter in electrical communication with the fuel cell system wherein the second inverter is configured to convert the first direct current to a first alternating current; the load in electrical communication with the second inverter, wherein the load is configured to receive the first alternating current from the second inverter; and an alternative power source configured to provide a third direct current to the second inverter through the split bus; wherein the system monitor is configured to control the first alternating current and the second alternating current to provide power to the load.