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۱High performance Cuk converter considering non–linear inductors for photovoltaic system applications
اطلاعات انتشار: Journal of Operation and Automation in Power Engineering، سوم،شماره۲، ۲۰۱۵، سال
تعداد صفحات: ۹
The Cúk converter, which has voltage buck and boost ability, offers high flexibility as an interface device for solar panels. In addition, current ripple can be more reduced because of two input and output inductors at both sides. This paper presents a new application of current–variable inductors in a Cúk converter that reduces the size and capacity of storage elements. Because of two inductors in structure, implementation of these variable inductors is important; therefore, the proposed design leads to cost and size savings, increases the performance interval of tracker to gain solar energy at lower sunlight levels, and simplifies control strategy. To validate the effectiveness of this structure, the analytical analysis, simulation results using PSCAD\EMTDC software and experimental results are presented.

۲A New Topology for Z–Source Inverter Based on Switched–Inductor and Boost Z–Source Inverter
اطلاعات انتشار: Journal of Operation and Automation in Power Engineering، سوم،شماره۲، ۲۰۱۵، سال
تعداد صفحات: ۱۸
In this paper, a new topology for boost Z–source inverterbased on switched–inductor cell is proposed. The operating modes of the proposed inverter are analyzed and also a suitable control method to generate the trigger signals of the inverter is presented. Having a common earth between the input source and inverter and capability to generate a higher voltage gain by using lower amounts of the duty cycles are some advantages of the proposed Z–source inverter. Comparison of the proposed inverter with conventional Z–source inverters is presented from different points of the view. Finally, the accuracy performance of the proposed inverter is reconfirmed through the simulation results in EMTDC\PSCAD software program.
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