CPC H02J 9/062 (2013.01) [H01M 8/04619 (2013.01); H01M 8/0488 (2013.01); H01M 8/0491 (2013.01); H02J 7/0063 (2013.01); H01M 16/006 (2013.01); H01M 2220/20 (2013.01); H01M 2250/20 (2013.01)] | 13 Claims |
1. A device for controlling a line connection type fuel cell system, the device comprising:
a plurality of fuel cell modules in electrical communication with a load and configured to self-generate power; and
a control device including:
an Alternating Current (AC) voltage generator in electrical communication with the load; and
a controller in communication with the plurality of fuel cell modules and the AC voltage generator, wherein the controller configured to:
operate the line connection type fuel cell system in a power system mode in which self-generated power from the plurality of fuel cell modules and power from an external power system are each supplied to the load; and
when operating the line connection type fuel cell system in the power system mode and the power supplied from the external power system is cut off:
activate the AC voltage generator to generate an AC voltage corresponding to the power supplied from the external power system; and
control the plurality of fuel cell modules to generate a current in synchronization with the AC voltage;
wherein the AC voltage generator does not generate a current corresponding to the power supplied from the external power system.
|