Optimal Control Scheme for Single-Stage Dual-Active-Bridge AC-DC Converter

被引：0
|
作者：
Chen, Tianxiang [1 ]
Yu, Ruiyang [1 ]
Ma, Qingxuan [1 ]
Zhao, Xin [1 ]
Huang, Alex Q. [1 ]
机构：
[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA
来源：
2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2018年
关键词：
Single Stage; Optimal Control; Dual-active-bridge (DAB); Zero-Voltage-Switching (ZVS); Power-Factor-Correction (PFC); Dual Phase Shift (DPS); Variable Frequency (VF);
D O I：
暂无
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：
This paper proposes an optimal control for a high step-down ratio single-stage AC-DC converter based on dual-active-bridge (DAB) topology and enhancement mode GaN FET. AC bridge working principle and clamping capacitor operation strategies is introduced. Zero voltage switching (ZVS) condition is analyzed to improve efficiency during whole line period. Optimal control for maximum turn-off current optimization in both variable frequency and fixed frequency condition is explored to reduce switching loss for low voltage DC side transistors. A 240V(RMS) AC-48V DC, 80-250 kHz prototype was developed to verify the novel converter.
引用
收藏
页码：2860 / 2864
页数：5
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