Hybrid Energy System Using Photo Voltaic Energy And Fuel Cell System With Three Level Inverter For Grid Connected Applications

RAJKUMAR. B

Abstract


            The performance, technical aspects and practical considerations of a grid connected photo voltaic-fuel cell (PVFC) hybrid system is solidly analyzed in this paper. The photo voltaic generation is the global, simplest and economical way to harvest energy, among the other renewable energy sources. As the photo-voltaic (PV) system is not that reliable with the daily atmospheric conditions, this makes the hydrogen fuel cell (FC) system which is reliable and consistent regardless of the surroundings, to co-operate with the former one. These two renewable energy sources posses the convenient energy conversion to DC electricity. An MPPT algorithm of perturb and observe (P&O) is applied to harvest maximum power by triggering a boost converter for PV system  and a buck converter is controlled for FC system, then the both systems are regulated to a 400V DC bus. A sinusoidal  inverter control is used for DC-AC conversion, and it is connected to the national grid using phase locked loop (PLL).


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