**3. Hybrid power system simulation results**

The load's power, diesel genset's power and wind generators power are shown respectively in Fig. 8, Fig. 9 and Fig. 10. The diesel genset operates with minimum load of 35% of the rated power (Fig. 9). Three 80 kW alkaline electrolyzers are used as dump load. The surplus power is absorbed bythe electrolyzers (Fig. 11, Fig. 12, Fig. 13) which contribute to balance the load demand and power production (Fig. 14). Electrolyzers contribute to maintain the frequency of the autonomous power system (Fig. 15).

**Figure 8.** Load profile

**Figure 9.** Diesel genset power

*Vrev*is the reversible voltage, *ri*

380 New Developments in Renewable Energy

*Vcell*

**Figure 8.** Load profile

The electrolyzer's voltage is expressed as:

, *si*

is the voltage of electrolyzer cell and *Nc* is the number of cells of the electrolyzer.

The load's power, diesel genset's power and wind generators power are shown respectively in Fig. 8, Fig. 9 and Fig. 10. The diesel genset operates with minimum load of 35% of the rated power (Fig. 9). Three 80 kW alkaline electrolyzers are used as dump load. The surplus power is absorbed bythe electrolyzers (Fig. 11, Fig. 12, Fig. 13) which contribute to balance the load demand and power production (Fig. 14). Electrolyzers contribute to maintain the

mined from experiments (N. Gyawali and Y. Oshsawa, 2010).

**3. Hybrid power system simulation results**

frequency of the autonomous power system (Fig. 15).

and *ti* are the empirical parameters whose values are deter‐

. *V NV ele c cell* = (36)

**Figure 10.** Wind farm power

**Figure 13.** Power absorbed by Electrolyzer 3

Wind Diesel Hybrid Power System with Hydrogen Storage

http://dx.doi.org/10.5772/52341

383

**Figure 14.** wind, diesel and Load powers

**Figure 11.** Power absorbed by Electrolyzer 1

**Figure 12.** Power absorbed by Electrolyzer 2

**Figure 13.** Power absorbed by Electrolyzer 3

**Figure 11.** Power absorbed by Electrolyzer 1

382 New Developments in Renewable Energy

**Figure 12.** Power absorbed by Electrolyzer 2

**Figure 14.** wind, diesel and Load powers

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Wind Diesel Hybrid Power System with Hydrogen Storage

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**Figure 15.** AC-bus frequency
