Design and Implementation of High-density Isolated Bi-directional Soft-switching Resonant DC-DC Converter with Partial Power Processing

被引：24

作者：

Cao, Yuliang ^{[1
]}

Ngo, Minh ^{[1
]}

Yan, Ning ^{[1
]}

Bai, Yijie ^{[1
]}

Dong, Dong ^{[1
]}

Burgos, Rolando ^{[1
]}

Agirman, Ismail ^{[2
]}

机构：

[1] Virginia Tech, Ctr Power Elect Syst, Blacksburg, VA 24061 USA

[2] Carrier Corp, Bloomfield, CT USA

来源：

2021 THIRTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2021) | 2021年

关键词：

Partial Power (PP) converter; dc transformer (DCX); resonant converter; input-parallel output-series (IPOS); decoupling design; 2-directions (2-D) flux cancelation;

D O I：

10.1109/APEC42165.2021.9487457

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：

With the increasing demand for energy storage system in transportation and stationary applications, a high-density high-efficient bi-directional dc-dc converter with galvanic isolation and scalable architecture for different battery systems is desired. This paper adopts a 500 kHz high-efficiency isolated bi-directional soft-switching resonant converter with a partial power processing (PPP) architecture for energy storage systems. Compared with existing PPP or two-stage architectures, the proposed resonant converter utilizes a low voltage (LV) buck regulator for battery interface. Due to the LV regulator, dc transformer (DCX) operates at a fixed switching frequency without any additional ac inductor and zero current detection (ZCD) components. To minimize ac loop inductance in the proposed DCX, a two-dimensional (2-D) flux cancelation layout is proposed, which achieves loop inductance of 4.24 nH. The paper presents the analysis of the converter operation, detailed 18 kW converter design of using 1.2 kV silicon carbide (SiC) MOSFETs and 650/150 V gallium nitride (GaN) FETs, achieving efficiency 98.8% and 142 W/in(3) power density.

引用

页码：640 / 646

页数：7

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