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In this paper, an isolated high step-up ratio dc-dc converter aimed to be used in interface systems between low voltage renewable energy sources, like photovoltaic panels and fuel-cells, and the utility grid is presented. The converter is based on the active clamp flyback topology with a voltage multiplier at the transformer secondary side. Such configuration, while naturally clamping the rectifier...
This paper aimed at comparing the performance of bidirectional converter designs for renewable source power generation such as wind. The bidirectional converter is supposed to allow a bidirectional power flow between power line and a battery system. In order to determine the most applicable bidirectional converter circuit which meets a set of requirements, four types of designs which were based on...
This paper presents a power converter for grid connection of renewable energy sources, consisting of a ZETA converter associated with a bridge inverter operating at low frequency. The Zeta converter, operating in the discontinuous conduction mode (DCM), produces a rectified sinusoidal current waveform synchronized with the electric grid. The full-bridge inverter, connected to the output of the Zeta...
This paper presents the study and development of a processing power system to be used in the grid connection of renewable energy sources to the power grid. The system consists of a Zeta converter associated with a full bridge inverter operating at low frequency. The Zeta converter, operating in discontinuous conduction mode (DCM), plays the main role in this arrangement, producing a rectified sinusoidal...
Renewable energy has been a great concern to obtain ecological society that can continuously grow. As an attractive solution, the fuel cell cogeneration system has been attracted and some first products have been developed in Japan and in some other centuries/areas. A product in Japan, which is the first developed system and few hundreds of the sets are under operation in Japanese homes, has been...
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