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Renewable energy sources integrated with power electronic converters plays an important role in satisfying the energy demands in variable applications. Fuel cell being a promising technology to use as a source of electricity, the mathematical modeling of the fuel cell is studied and testing of power electronic converters are carried out in this paper. Matlab/Simulink models of the fuel cell integrated...
This paper presents an evaluation of two modulation methods for the seven-level packed U cell (PUC) inverter for photovoltaic applications. The PUC is a multilevel inverter which has less number of switching devices than the conventional multilevel inverters. The PUC inverter is in modular configuration consisting of one U-cell and four additional power switches, one dc link and an auxiliary capacitor...
Viability and reliability of the wind power has made Wind Turbine Systems (WTSs) a popular renewable energy resource. A bidirectional DC/DC converter is proposed in this study for the WTS. The proposed DC/DC converter controls the DC-link voltage by injecting the difference between the extracted power from permanent magnet synchronous generator (PMSG) and the output power of the grid-tied inverter,...
Z-sourcebeing an attractive option for buck-boost energy conversion in renewable system, this paper investigates the performances of the traditional boost converter and Z-source inverterfed by fuel cell as the dc source. The changes in the fuel cell utilization, stack consumption and efficiency of a 65kW fuel cell is studied by maintaining a constant fuel flow rate. The output voltage and current...
Flexible active and reactive power injection to the grid is one of the requirements of medium-scale PV power plants (PVPP). Due to the high penetration of installed distributed generation (DG) units to the power system, the flexible active/reactive power control capability is necessary for medium-scale PVPPs in order to maintain the power quality and reliability of the power system. A three-dimensional...
Fuel cells are energy conversion devices which use hydrogen as the fuel source and an integral part of a Zero energy Building (ZEB). Z-source inverters are attractive option for various energy conversions in a ZEB. In this paper the application of Z-source inverters to convert the DC output of fuel cells in a ZEB to AC output is studied. The changes in fuel utilization, stack consumption and stack...
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