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Simulation and Comparison of Cuk-Sepic and Cuk-Buck Fused Converter Topologies

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Document pages: 8 pages

Abstract: Power supply systems all over the world are facing challenging situations where they have to be extremely flexible, reliable and expandable.This paper presents a comparison of a new system configuration of the front- end rectifier stage for a hybrid wind-photovoltaic energy system: Cuk-Sepic and Cuk-Buck .This configuration allows the two sources to supply the load separately or simultaneously together depending on the availability of the energy sources. The main purpose of this hybrid wind-solar energy system is to meet our daily demand effectively and to get an uninterrupted power supply from any one of the natural source either wind or solar or both. Due to the inherent nature of these fused converters, additional filters are not necessary to filter out high frequency harmonics.Also the values of inductance and capacitance are less for Cuk Buck converter than the Cuk Sepic converter. But Cuk Sepic converter has more number of components compared to Cuk Buck converter. The highlighting features of these fused converters are high efficiency, reduced component count, simple control and flexibility in power sharing. Simulation results are given to highlight the merits of these converters.

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