A soft-switched bi-directional DC-DC converter

被引：0
|
作者：
Rylko, Marek [1 ]
Egan, Michael G. [1 ]
Hayes, John G. [1 ]
Power, Daithi [1 ]
机构：
[1] Natl Univ Ireland Univ Coll Cork, Dept Elect & Elect Engn, Power Elect Res Labs, Cork, Ireland
来源：
2007 EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, VOLS 1-10 | 2007年
关键词：
resonant-mode power supply; soft switching; ZVS converter;
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：
High-power, high-frequency and high density bi-directional dc-dc converters are increasingly required in industrial applications and in automotive hybrid-electric power systems. This paper presents detailed analysis and experimental results on a 100 kHz, soft-switched bi-directional dc-dc converter, a novel variation of the auto-transformer soft-switching cell. New closed-form expressions are presented for the average current gain of the converter, taking both the impact of the soft-switching network and the output current ripple into account. These expressions are validated by simulation and experimental results. The efficiency of a prototype converter is shown to be approximately 97% over a wide load range for both buck and boost operating modes. The circuit modes and limitations are discussed. The paper presents a I kW experimental comparison between the soft-switched MOSFET-based low-ripple converter, a hard-switched low-ripple IGBT converter and a high-ripple MOSFET converter.
引用
收藏
页码：1669 / 1678
页数：10
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