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Stand Alone Power System Using Photovoltaic/Fuel Cell/Battery Hybrid Generating System

Afsal F Rahiman, Maheswaran K

The paper proposes an independent hybrid power system that optimizes the output power with the varying input solar power. The hybrid system consists of photovoltaic, fuel-cell and battery as three sources which can supply the load individually or in tandem. Voltage control is used for regulating output voltage. Single phase and three phase systems are implemented and analysed. A multi input dc-dc converter is used to integrate the three dc input sources. Without the use of any transformers this converter gives us the advantage of smaller size lesser components and thereby reduction in cost. The dc-dc converter also gives us the advantage of bi-directional power flow with the storage element in this case the battery storage element. The single phase inverter is modelled with sinusoidal pulse width modulation control. The three-phase inverter is also modelled and two different control techniques are implemented, sinusoidal pulse width modulation (SPWM) and state vector pulse width modulation (SVPWM) and the quality of the obtained ac power is analysed. The above models are constructed using MATLAB/SIMULINK software

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哈姆达大学
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国际组织研究所 (I2OR)
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