Improved Multiphase Interleaved LLC Resonant Converter With Virtual Controllable Voltage Sources

被引：11
|
作者：
Dong, Hanjing [1 ]
Xie, Xiaogao [1 ]
Yu, Haiming [1 ]
Yu, Dailing [1 ]
机构：
[1] Hangzhou Dianzi Univ, Sch Automat, Hangzhou 310018, Peoples R China
来源：
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2023年 / 11卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Current sharing; LLC resonant converter; multiphase interleaved; simplified virtual controllable voltage sources (SVCVSs); CURRENT-SHARING METHOD;
D O I：
10.1109/JESTPE.2022.3202165
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this article, a simplified virtual controllable voltage sources (SVCVSs) structure for multiphase (n >= 3) interleaved LLC resonant converter has been proposed. The SVCVS in each phase is constructed by single auxiliary winding of transformer of the nearby as the phase number is >= 3, hence printed circuit board (PCB) layout of the improved multiphase interleaved LLC resonant converter becomes much simpler. The feasibility of the multiphase interleaved LLC resonant converter with SVCVSs has been illustrated by vector diagrams, and a family of topologies has been derived. Finally, the 12-V/60-A three-phase interleaved LLC converter with VCVSs/SVCVSs has been tested based on a laboratory built-up prototype. Experimental results show that the three-phase converter with SVCVSs can achieve close output current ripple but higher efficiency than the converter with VCVSs.
引用
收藏
页码：806 / 817
页数：12
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