| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost and high-versatility fuel cell system mounting a fuel cell and a power storage device as an auxiliary power supply, capable of converting a voltage of the fuel cell and the power storage device according to a voltage of an external device.SOLUTION: A fuel cell system comprises: a fuel cell in which a plurality of cells are connected in series and stacked; a power storage part for storing a power generated at the fuel cell; a first voltage converter for converting a generated voltage of the fuel cell into a voltage of the power storage part; and a second voltage converter connected to the first voltage converter and the power storage part, for converting voltages from the first voltage converter and the power storage part into a different voltage. The second voltage converter is driven by at least one of a power of the first voltage converter, which is converted from the generated power of the fuel cell, and a power stored in the power storage part. |
