期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 68, 期 2, 页码 1130-1138出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.2970652
关键词
AC-to-AC converter; buck-boost; high efficiency; semiconductor
The proposed converter in this article is a simple and efficient single-phase direct acto-ac converter with the flexibility to be used as a voltage buck or buck-boost converter. It offers higher efficiency compared to competitors with fewer semiconductors thanks to a switching strategy that minimizes high-frequency operation and simultaneous conduction.
A simple and efficient single-phase direct acto-ac converter with the possibility to be utilized as a voltage buck or buck-boost converter is proposed in this article. The proposed converter offers higher efficiency than the competitors with a lower number, of semiconductors. The proposed switching strategy minimizes the high-frequency operation and simultaneous conduction of semiconductors during each mode of operation. Besides a higher efficiency, the other major advantages of the proposed converter are eliminating the risk of input source shoot-through, a lower number, and total rating of semi-conductors, defined by switching device power parameter, a lower number and smaller size of reactive components, a better input current quality, and lower filtering requirements. The theoretical claims are confirmed through experiments on a 480-W prototype built in a laboratory.
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