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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.
This paper presents a high-frequency link AC/DC converter using a soft-switching technique, which consists of primary matrix converter, high-frequency link transformer and secondary diode rectifier circuit. The control method of the high-frequency link AC/DC converter to satisfy the soft switching conditions is proposed. The switching loss can be reduced because of using soft switching. The effectiveness...
This paper proposes a control structure of SST (Solid-state-transformer), which consists of MMC (Modular Multi-level Converter) based AC/DC converters and isolated DC/DC converters, to reduce the size of capacitors. The phase separated configuration requires a high capacitance needed for smoothing capacitors due to instantaneous power oscillation at the double line frequency. This paper proposes an...
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