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This paper presents an experimental switched-reluctance generator (SRG) based distributed power system with common DC grid and single-phase AC 220/110V 60Hz outputs. First, a SRG with suitably designed power converter and control scheme is constructed to generate robust DC 48V output. Then it is boosted to establish a 400V common DC grid by a current-fed push-pull (CFPP) DC/DC converter. Well-regulated...
In this paper, the techniques for a gradationally controlled voltage inverter (GCVI), which is a high efficiency inverter, and a high efficiency power conditioner utilizing the GCVI technique for photovoltaic power generation systems are described. A GCVI consists of several inverters operated at different voltages in series and outputs voltage with a sine waveform by combining these outputs. The...
We describe a single-stage low-cost and efficient fuel-cell (FC) power-electronics system (PES), which comprises a front end phase-shifted high-frequency (HF) full-bridge inverter followed by a step-up high-frequency transformer and a forced cycloconverter for universal residential FC power system (i.e., 110 V/240 V and 60/50 Hz). This single-stage dc/ac converter approach meets the higher energy...
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