电源学报2024，Vol.22Issue(2)：98-105,8.DOI:10.13234/j.issn.2095-2805.2024.2.98
基于分裂-叠加结构的部分功率主动调控型准单级直流变换方法
Quasi Single-stage DC-DC Conversion Method with Partial Power Active Regulation Based on Split-sigma Structure
摘要
Abstract
Aimed at the low conversion efficiency and all the load power that needs to be processed by converters at different stages in the two-stage architecture of a DC transformer cascaded PWM converter,a quasi single-stage DC-DC conversion method with partial power active regulation based on a split-sigma structure is proposed.By splitting the output port of the DC transformer into two ports,the power of one port is directly transmitted to load without being pro-cessed by the back-stage PWM converter,thus realizing the quasi single-stage power conversion equivalently.In addi-tion,the power capacity and loss of the PWM converter are effectively reduced,and the system efficiency is improved.The principle and circuit implementation method for the split-sigma structure are analyzed in detail,and the principle and characteristics of system output voltage regulation are also studied.One of the circuits is taken as an example,and its working principle,voltage regulation characteristics and design method for key parameters are analyzed.Finally,ex-perimental results verified the effectiveness and correctness of the proposed scheme.关键词
双输出直流变压器/分裂-叠加结构/准单级/直流变换Key words
Dual-output DC transformer/split-sigma structure/quasi single-stage/DC-DC conversion分类
信息技术与安全科学引用本文复制引用
侍良东,程钰杰,杨帆,吴红飞..基于分裂-叠加结构的部分功率主动调控型准单级直流变换方法[J].电源学报,2024,22(2):98-105,8.基金项目
国家自然科学基金资助项目(52122708) （52122708）
江苏省自然科学基金资助项目(BK20200017) （BK20200017）
江苏省青蓝工程资助项目This work is supported by National Natural Science Foundation of China under the grant 52122708 （）
Natural Science Founda-tion of Jiangsu Province of China under the grant BK20200017 （）
Qinglan Project of Jiangsu Province of China （）
