A Synchronous Rectification Scheme based on Inductor Voltage Sensing for CLLC Bidirectional Resonant Converter

被引：0
|
作者：
Chen, Ning [1 ]
Li, Bodong [1 ]
Wang, Xiaoqin [1 ]
Sun, Xinnan [1 ]
Qi, Jizhi [1 ]
Chen, Min [1 ]
Liu, Yongjiang [2 ]
机构：
[1] Zhejiang Univ, Dept Appl Elect, Hangzhou, Peoples R China
[2] Inner Mongolia Power Res Inst, Hohhot, Peoples R China
来源：
2020 THIRTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2020) | 2020年
关键词：
CLLC bidirectional converter; Synchronous rectification; Resonant inductor voltage; DRIVING SCHEME; DESIGN;
D O I：
10.1109/apec39645.2020.9124322
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The synchronous rectification (SR) is an effective method to further improve the efficiency of the CLLC bidirectional resonant converters. However, the SR driving signals are hard to generate. This paper proposed a novel SR scheme based on resonant inductor voltage sensing. The inductor voltage is sensed by a voltage sensing winding integrated in the inductor, and is then integrated to obtain the resonant current. The resonant current direction is used to generate SR driving signals, and a widely applicable control strategy is proposed to cover all operation conditions. The proposed method does not need any loss, costly and bulky current sensors, while maintaining the benefits of current sensing based SR methods. Finally, the proposed SR scheme is verified on a 380V/270V CLLC bidirectional resonant converter.
引用
收藏
页码：1713 / 1719
页数：7
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