Variable-Switching-Frequency Single-Stage Bidirectional GaN AC-DC Converter for the Grid-Tied Battery Energy Storage System

被引：0
|
作者：
Chen, Tianxiang [1 ]
Yu, Ruiyang [1 ]
Huang, Alex Q. [1 ]
机构：
[1] Univ Texas Austin, Semicond Power Elect Ctr SPEC, Dept Elect & Comp Engn, Austin, TX 78712 USA
来源：
AMERICAN JOURNAL OF CLINICAL NUTRITION | 2021年
基金：
美国能源部;
关键词：
AC-DC converter; battery energy storage system (BESS); dual phase shift (DPS); dual-active-bridge (DAB); gallium-nitride (GaN); online calculation; optimal control; power-factor-correction (PFC); variable frequency (VF); zero-voltage-switching (ZVS);
D O I：
暂无
中图分类号：
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号：
100403 ;
摘要：
This article presents a 10-kW novel gallium-nitride (GaN)-based three-phase grid to 48-V battery energy storage system (BESS). The BESS utilizes a single-stage ac-dc dual-active-bridge (DAB) converter with dual-phase-shift (DPS) and variable-frequency (VF) control. 600- and 80-V GaN power transistors, as well as planar magnetics, are used to achieve 96.6% efficiency and 50-W/in(3) power density. The operation principle and power transfer characteristics are derived based on time-domain analysis of the DAB inductor current. VF and DPS are utilized to achieve power factor correction and zero-voltage switching simultaneously while minimizing the DAB rms current. An online calculation algorithm is presented with short execution time, which enables the closed-loop control of the BESS. Experimental results are presented to validate the novel control.
引用
收藏
页码：10776 / 10786
页数：11
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