A Novel Single-Phase Soft-Switching Unipolar PWM Rectifier

被引：0
|
作者：
Jiang, Maoh-Chin [1 ]
Perng, Shyh-Shing [1 ]
Fu, Huang-Kai [1 ]
Chien, Ya-Chi [1 ]
Wu-Chang, Kuei [1 ]
机构：
[1] Natl Ilan Univ, Dept Elect Engn, Yilan, Taiwan
来源：
2011 IEEE REGION 10 CONFERENCE TENCON 2011 | 2011年
关键词：
soft-switching; unipolar PWM rectifier; zero-voltage-switching (ZVS); zero-current-switching (ZCS);
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper proposed a novel single-phase soft-switching unipolar PWM rectifier (SSUPR) using a simple auxiliary resonant unit. All main switches of high-frequency arm operate at zero-voltage-switching (ZVS) turn-on, while the auxiliary switches operate at zero-current-switching (ZCS) turn-off. All main switches of low-frequency arm operate at 60 Hz to greatly reduce switching losses. Moreover, a soft-switching unipolar PWM strategy is used for the proposed soft-switching rectifier. This strategy results in a better input current waveform than for the bipolar PWM strategy. Furthermore, the proposed rectifier achieves a near unity power factor, sinusoidal input current and a bidirectional power flow capability. Some simulation results of the proposed SSUPR, rated 400 W and operated at 40 kHz, are presented for verification.
引用
收藏
页码：843 / 847
页数：5
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