| 摘要 |
A method of controlling a flow rate of fuel in a fuel supply unit of a fuel cell system is provided. The fuel cell system includes a fuel pump, a revolution per minute (RPM) measuring unit, a microcomputer, and a power converter. The method of controlling the flow rate controls the fuel supply unit so as to supply the fuel to a reformer reforming the fuel to generate hydrogen or a stack generating electric energy through a reaction of the fuel and oxygen. The method of controlling the flow rate includes measuring an actual RPM of the fuel pump; comparing the actual RPM to a reference RPM of the fuel pump; and adjusting a driving voltage of the fuel pump on the basis of the comparison result.
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