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Title
Japanese:位相シフト制御を適用した高周波サイクロコンバータ 
English:A High-Frequency Cycloconverter Based on a Phase-Shift Control Method 
Author
Japanese: 米田 昇平, 藤田 英明.  
English: Shohei Komeda, Hideaki Fujita.  
Language Japanese 
Journal/Book name
Japanese:電気学会論文誌D 
English:IEEJ Trans. IA 
Volume, Number, Page vol. 136    no. 6    pp. 433-440
Published date June 1, 2016 
Publisher
Japanese:電気学会 
English:Institute of Electrical Engineering in Japan 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://www.jstage.jst.go.jp/article/ieejias/136/6/136_433/_article/-char/ja/
 
DOI https://doi.org/10.1541/ieejias.136.433
Abstract This paper proposes a new control method for a high-frequency cycloconverter consisting of two half-bridge inverters and a series-resonant circuit. This cycloconverter acts as an ac-to-ac direct power conversion circuit without any dc stage. This circuit does not require a diode bridge rectifier, and thus, can be used to reduce forward voltage drops and power losses in the diodes. A new phase-shift control method is proposed to regulate the capacitor voltage in each half-bridge inverter and to achieve zero-voltage switching. The proposed phase-shift control is theoretically discussed and is also verified by an experimental circuit consisting of super-junction power MOSFETs. As a result, the proposed high-frequency cycloconverter exhibits a good power conversion efficiency as high as 97.7% at the rated power of 1.3kW.

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