| 摘要 |
The present invention provides a fuel cell electric power sensing methodology and the applications thereof. A fuel cell electric power sensing methodology comprises the following steps: electrically connecting a fuel cell to a main control circuit, which is a circuit having a voltage/current judgment means and a storage means; computing the rate of change of transient voltage, wherein after starting the fuel cell and supplying electricity load, during the transient state process in which voltage decreases from initial voltage to steady-rate voltage, voltage value of a first reference time and a second reference time are retrieved to compute the rate of change of voltage with time, through a voltage/current judgment means of the main control circuit; testing the correspondence of the change of rate of transient voltage, wherein the main control circuit obtains a steady-state voltage value and a steady-state current value when the fuel cell is at the steady state, through the change of rate of transient voltage stored by the storage means and the correspondence of output voltage and output current of the fuel cell at a specific operating temperature; and testing if the output electricity of the fuel cell meets the rated output, wherein the steady-state voltage value and the steady-state current value at a steady state are obtained during the above steps, and then the main control circuit computes the power for these values, so as to decide if the electricity outputted by the fuel cell meets the rated output.
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