A Natural Bidirectional Isolated Single-phase AC/DC Converter with Wide Output Voltage Range for Aging Test Application in Electric Vehicle
发布时间：2021-07-28
点击次数：
影响因子：4.472
DOI码：10.1109/JESTPE.2020.3010860
发表刊物：IEEE Journal of Emerging and Selected Topics in Power Electronics
关键字：AgingAC-DC power convertersMultichip modulesRectifiersVoltage controlResonant convertersBatteriesAging testelectrical isolationnatural bidirectional power flowunity input power factorwide range voltage regulation
摘要：To ensure the safety and reliability, the aging test of on-board charger (OBC) and dc/dc auxiliary power module (dc/dc-APM) in electric vehicles are indispensable. However, a wide range of battery voltage levels and fast response to power conversion between forward and backward operations are still challenging aspects of the aging test power system. In this article, an improved ac/dc converter is proposed for the aging test application in electric vehicles. The converter consists of two identical topologies, which is made up of three cascaded converters. The first stage is a single-phase ac/dc rectifier, which realizes unity input power factor and power transmission between the ac grid and dc bus. The second stage is the LLC-dc/dc transformer (LLC-DCX) which provides electrical isolation and fixed voltage transfer ratio. Besides, the natural bidirectional power flow can be achieved by the proposed solution. The third stage is a synchronous buck converter (SBC) which guarantees the high dynamic performance and wide range voltage regulation. Experiments based on an 8-kW prototype are conducted to verify the feasibility and effectiveness of the proposed converter and the related control strategies
合写作者：Sisheng, Wu, Jingtao, Xu, Yao, Sun, Hui, Wang, Yonglu, Liu, Wenjing, Xiong, Xiao, Liang
第一作者：Mei, Su
论文类型：期刊论文
通讯作者：Hanbing, Dan
论文编号：20212410491445
学科门类：工学
一级学科：电气工程
文献类型：J
卷号：9
期号：3
页面范围：3489-3500
ISSN号：21686777
是否译文：否
发表时间：2021-06-01
收录刊物：SCI
附件：
A Natural Bidirectional Isolated Single-phase ACDC Converter.pdf