Fig. 1. Configuration of PEMFC-battery hybrid system
Fig. 2. Polarization curve for the fuel cell model
Fig. 3. Equivalent circuit of battery model
Fig. 4. Internal resistance of battery
Fig. 5. Integrated hybrid model using Matlab/Simulink
Fig. 6. Flowchart of SMC
Fig. 7. 3-D fuzzy rules
Fig. 8. Hybrid rules combined with SMC and FLC
Fig. 9. Hybrid power experimmental platform
Fig. 10. Required load power
Fig. 11. Simulation and experimental results for battery current
Fig. 12. Simulation and experimental results for bus voltage
Fig. 13. Variation of power split for SMC and hybrid method (SMC+FLC)
Fig. 14. Fuel consumption variation
Fig. 15. Battery SOC variation
Table 1. Specification of hybrid power system
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