Fuel battery system and its controlling method
A fuel cell system, fuel cell technology, applied in fuel cells, fuel cell additives, circuits, etc., can solve problems such as failure to prevent early prevention, low battery output efficiency, and insufficient direct effectiveness, so as to avoid diffusion barriers and work. Short time, direct and effective control
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example 1
[0061] This example is used to illustrate the fuel cell system provided by the present invention.
[0062] Each component device was constructed as described in Comparative Example 1, except that the fuel cell system B was composed as shown in FIG. 4 . Wherein the discharge current of the fuel cell generator is constant at 125 milliamperes / square centimeter, and the setting duty cycle is 30 minutes. According to the curve of Fig. 5, the current is 125 milliamperes / square centimeter and the scheduled working time is 60 seconds, then the scheduled idle time is 60 seconds. The time is 29 minutes.
example 2
[0064] This example is used to illustrate the fuel cell system provided by the present invention.
[0065] Fuel cell system C was composed as described in Example 1. The difference is that the discharge current of the fuel cell generator is constant at 60 milliamperes / square centimeter, and the set duty cycle is 30 minutes. According to the curve in Figure 5, the current is 60 milliamperes / square centimeter and the predetermined working time is 30 minutes. seconds, the scheduled idle time is 29 minutes and 30 seconds.
[0066] The following examples illustrate the characteristics of the fuel cell system provided by the present invention.
example 3
[0068] Using an electronic load meter, measure the output power of the fuel cell systems A, B, and C over time, and draw the output power-time curves, which are shown in Figure 7, Figure 8, and Figure 9 respectively.
[0069]It can be seen from Figure 7 that the output power of the fuel cell system A is about 4.4 watts, which is the net output power of the fuel cell generator after the power consumed by the fuel pump and air compressor is removed. It can be seen that using this Although this kind of active material / air supply can maintain a stable output for a long time, the system itself consumes, so the output power is not high.
[0070] It can be seen from Fig. 8 that the output power of the fuel cell system B changes every 30 minutes, and the output power is stable in the range of 4.9 watts to 5 watts in most of the time (about 28 minutes).
[0071] Similarly, it can be seen from Figure 9 that the output power of the fuel cell system C also changes every 30 minutes, and th...
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