Emerging trends of high-power-density power-electronics interfaces for renewable- and alternative-energy sources have led to the need for high-frequency-inverter designs without compromising energy-conversion efficiency. In that context, a zero-voltage-switching (ZVS)-based scheme is described in this letter, for a cycloconverter-type high-frequency-link inverter, which is applicable for renewable- and alternative-energy sources as well as other commercial applications. The proposed scheme achieves the primary-side-converter-assisted switching of the ac/ac converter switches under ZVS condition. The modes of operation of the ac/ac converter are explained to outline the behavioral response. The results on the efficacy of the ZVS-based inverter and its performance show satisfactory performances.
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Mazumder et al. (2010) studied this question.
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