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This paper presents a single-stage isolated softswitching tri-port converter for integrating a renewable resource like solar PV, and energy storage with single-phase AC grid through high-frequency galvanic isolation. The single-stage approach reduces the component count, and the full-range softswitching feature realizes higher efficiencies compared to the state-of-the-art methods. A significant advantage...
In recent years, a demand of an isolated AC/DC converter for the grid connection increases. The authors have proposed an isolated three-phase AC/DC converter using soft-switching technique and the control. This paper presents a soft-switching parameter design for the isolated three-phase AC/DC converter. The effectiveness is verified by experiments.
An interleaved current-fed capacitor-less DC/AC converter for PV systems is proposed in this paper with the merits low input current ripple, high power density and high reliability. This proposed DC/AC converter is composed of an interleaved current-fed dc/pulsating-dc converter cascaded with a three-phase pulsating-dc/ac inverter through pulsating-dc-link modulation. The pulse width modulation of...
In this paper, a new class of bidirectional universal power converters is presented. As a universal power converter, the proposed converter can interface any type of source and load without any limitation in their forms (ac or dc) and number of phases. In this converter, which accomplishes power conversion in a single stage, a small inductor placed in series with the input and output switch-bridges...
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