Contactless DC Connector Concept for High-Power-Density 380-V DC Distribution System

被引：7

作者：

Hayashi, Yusuke ^{[1
]}

Toyoda, Hajime ^{[1
]}

Ise, Toshifumi ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Elect Elect & Informat Engn, 2-1,Yamada Oka, Suita, Osaka 5650871, Japan

来源：

IEEJ JOURNAL OF INDUSTRY APPLICATIONS | 2015年 / 4卷 / 01期

关键词：

Contactless power supply; DC Distribution; isolated DC-DC converter; Gallium Nitride;

D O I：

10.1541/ieejjia.4.49

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A contactless DC connector concept has been proposed for next-generation 380-V DC distribution systems in data centers. An LLC resonant DC-DC converter topology with gallium nitride (GaN) power transistors has been applied to realize a highly efficient inductively coupled contactless connector. A prototype of a 1.2-kW 384V-192V contactless connector has been fabricated. An efficiency of over 95% and an ideal power density of over 5.0W/cm(3) have been confirmed experimentally under 500-kHz operation. Design considerations for the proposed connector have been also conducted, and the approach for achieving a higher power density of 10W/cm(3) has been presented. The proposed concept contributes to realizing a high-power-density DC distribution system because the functions for both the isolated DC-DC converter and conventional connector are integrated in a single instrument.

引用

页码：49 / 58

页数：10

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