Wide Voltage Input Full Bridge(FB)/Half Bridge(HB) Morphing-Based LLC DC-DC Converter Using Numerical Optimal Trajectory Control

被引：22

作者：

Sha, Deshang ^{[1
]}

Yang, Xiao ^{[1
]}

机构：

[1] Beijing Inst Technol, Adv Power Convers Ctr, Sch Automat, Beijing 100081, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2023年 / 70卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Dynamic response; LLC resonant converter; optimal trajectory (OTC); RESONANT CONVERTER; IMPLEMENTATION;

D O I：

10.1109/TIE.2022.3177810

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Full-bridge/half-bridge (FB/HB) morphing topology is very suitable to be used in a wide input voltage range for an LLC dc-dc converter. To improve the dynamic performance in facing the input voltage variation, a numerical optimal trajectory control is presented. The power circuit considering its parasitic parameters is simulated first and the simulated data can be stored in DSP memory. These discrete data can be used to obtain the accurate gain-frequency curve versus different loads by numerical methods. The proposed numerical optimal trajectory (OTC) can achieve a very fast and smooth transition between FB/HB in facing the input voltage variation. A 640 W 220-760 V input/400 V output LLC resonant converter is built. The effectiveness of the proposed numerical OTC has been verified by the simulation and experimental results.

引用

页码：3697 / 3707

页数：11

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