An Interleaved Three-Phase PWM Single-Stage Resonant Rectifier With High-Frequency Isolation

被引：11
|
作者：
Li, Guangdi [1 ]
Ruan, Jie [1 ]
Wang, Kun [1 ]
Deng, Yan [1 ]
He, Xiangning [1 ]
Wang, Yousheng [1 ]
机构：
[1] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2020年 / 67卷 / 08期
关键词：
Topology; Rectifiers; Voltage control; Stress; Inductors; Capacitors; Pulse width modulation; Interleaved three-phase rectifier; resonant rectifier; single-stage converter; soft-switching commutation; SHIFTED FULL-BRIDGE; DC CONVERTER; VOLTAGE; TRACKING; ESSENCE;
D O I：
10.1109/TIE.2019.2938461
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This article proposes a novel interleaved three-phase pulsewidth modulation (PWM) single-stage resonant ac-dc converter with high-frequency isolation. The proposed converter comes from an interleaved three-phase power factor correction (PFC) semistage and a three-phase LLC resonant dc-dc semistage. Soft-switching commutation can be achieved on the power switches in this converter including zero-voltage-switching-on on the primary side power switches and zero-current-switching-off on the secondary diodes. The LLC resonant tank in the dc-dc semistage serves as a bandpass filter that attenuates the line-frequency ripple and keeps the switching frequency component passing through the transformer. The high frequency transformer keeps in a small size. Steady-state analysis of the resonant dc-dc semistage for PWM control is proposed to analyze the dc-link voltage stress. Moreover, the dc-link capacitor value can be greatly reduced without affecting the PFC operation. A prototype that converts a wide three-phase input voltage to 300 V dc output voltage is built and tested. The experimental results present an almost unity power factor with a conversion efficiency as high as 96.3% with total harmonic distortion as low as 3.86% at a full-load condition.
引用
收藏
页码：6572 / 6582
页数：11
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