电源学报2026，Vol.24Issue(2)：71-79,9.DOI:10.13234/j.issn.2095-2805.2026.2.71
具有2种可选拓扑的柔性DC-DC变换器研究
Research on Flexible DC-DC Converter with Two Selectable Topologies
摘要
Abstract
A flexible DC-DC converter with four output connectors is proposed,which can freely switch between a three-level Boost topology and a totem-pole Boost topology according to different connections of output connectors.The operation modes and steady-state performance of these two topologies are analyzed,along with the corresponding application scenarioof each topology.In addition,the topology switching condition and practical implementation are also discussed.It is found and verified that the totem-pole Boost topology features a large step-up ratio.A circuit model is built in the PSIM simulation environment,the component parameters are designed,and the related simulation results are given.A 640 W hardware prototype with a peak efficiency of 98.5％was tested,and part of the key waveforms were plotted.Simulation and experimental results show that this flexible DC-DC converter has characteristics of application flexibility,a simpler circuit structure and a higher efficiency.关键词
柔性变换器/三电平Boost/图腾柱Boost/大升压比Key words
Flexible converter/three-level Boost/totem-pole Boost/large step-up ratio分类
信息技术与安全科学引用本文复制引用
赵猛,付明,李亚飞,马千里,朱庆,刘乙..具有2种可选拓扑的柔性DC-DC变换器研究[J].电源学报,2026,24(2):71-79,9.基金项目
国家电网公司科技项目(SGTYHT/21-JS-223)This work is supported by the Science & Technology Project of State Grid Corporation of China under the grant SGTYHT/21-JS-223 （SGTYHT/21-JS-223）
