期刊
ENERGIES
卷 12, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/en12061119
关键词
three-phase rectifier; PFC; switch-mode rectifier; ZVS; ZCS
资金
- Ministry of Science and Technology of Taiwan [NSC 103-2221-E-011 -064 -MY3]
A novel three-phase power-factor-correction (PFC) rectifier with zero-voltage-switching (ZVS) in six main switches and zero-current-switching (ZCS) in the auxiliary switch is proposed, analyzed, and experimentally verified. The main feature of the proposed auxiliary circuit is used to reduce the switching loss when the six main switches are turned on and the one auxiliary switch is turned off. In this paper, a detailed operating analysis of the proposed circuit is given. Modeling and analysis are verified by experimental results based on a three-phase 7 kW rectifier. The soft-switched PFC rectifier shows an improvement in efficiency of 2.25% compared to its hard-switched counterpart at 220 V under full load.
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