High-Efficiency Bidirectional Isolated AC/DC Converter

被引：0
|
作者：
Su, Mei [1 ]
Wu, Sisheng [1 ]
Dan, Hanbing [1 ]
Sun, Yao [1 ]
Wang, Hui [1 ]
Liu, Yonglu [1 ]
Xiong, Wenjing [1 ]
机构：
[1] Cent South Univ, Sch Automat, Changsha, Peoples R China
来源：
2020 THIRTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2020) | 2020年
基金：
中国国家自然科学基金;
关键词：
aging test; unity input power factor; high efficiency; bidirectional energy flow; electrical isolation; wide range of output voltage;
D O I：
10.1109/apec39645.2020.9124588
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：
In the paper, a novel AC/DC converter is proposed for the aging test of on-board charger in electric vehicles. This converter has advantages of unity input power factor, high efficiency, bidirectional energy flow, electrical isolation and wide range of output voltage. The converter consists of two identical topologies, which is made up of three cascaded converters. The front stage is a single-phase AC/DC rectifier and it realizes the unity input power factor. The next stage consists of a two-stage topology. The front stage of the two-stage topology is LLC resonant converter, which realizes electrical isolation, fixed voltage transfer ratio and natural bidirectional power flow. The back stage uses a bidirectional buck-boost converter to realize high dynamic performance and wide range voltage regulation ability. The feasibility and effectiveness of the proposed topology and control strategy are validated by the experimental results.
引用
收藏
页码：2010 / 2013
页数：4
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