Fuel cell system and method of controlling operation of a plurality of fuel cells

A method of controlling an operation of a plurality of fuel cells, the method comprising:

• comparing a power consumed in a load with a power to be output from at least one of the plurality of fuel cells;
• selecting an operational mode from among a plurality of operational modes operating the at least one of the plurality of fuel cells according to a result of the comparing of the power consumed;
• and
• controlling the operation of the plurality of fuel cells according to the selected operational mode.

A computer readable recording medium having recorded thereon a program for executing a method of controlling an operation of a plurality of fuel cells, the method comprising:

• comparing a power consumed in a load with a power to be output from at least one of the plurality of fuel cells;
• selecting an operational mode from among a plurality of operational modes operating the at least one of the plurality of fuel cells according to a result of the comparing of the power consumed;
• and
• controlling the operation of the plurality of fuel cells according to the selected operational mode.

A fuel cell system comprising:

• a plurality of fuel cells;
• a plurality of a balance of plants (BOPs) providing fuel and air to the plurality of fuel cells;
• and
• a control unit selecting an operational mode controlling an operation of the plurality of fuel cells and the plurality of BOPs according to a power consumed in a load and a performance of the plurality of fuel cells.

A method of controlling duty cycles corresponding to a plurality of fuel cells, the method comprising:

• comparing a power consumed in a load with a power to be output from at least one of the plurality of fuel cells;
• operating the plurality of fuel cells if the power consumed in the load is greater than a power to be output from at least one of the plurality of fuel cells;
• and
• controlling duty cycles of the plurality of fuel cells according to the power consumed in the load.