Design Optimization of High-Frequency WBG-Based LLC Resonant Converter for Telecom Applications

被引：0

作者：

Karimi, S. ^{[1
]}

Tahami, F. ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Elect Engn, Tehran 1458889694, Iran

来源：

2018 IEEE 18TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (PEMC) | 2018年

关键词：

DC-DC converter; LLC resonant converter; zero-voltage switching (ZVS); matrix transformer; wide bandgap (WBG) devices; multi-objective optimization; METHODOLOGY;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Nowadays high efficiency and power density are desired for designing a power electronic converter. Technology advances in power semiconductor devices, makes it possible to design converters for operation in higher frequencies to reduce size of the converters. As the frequency is increased, switching losses and temperature is also increased, so designing a converter for high frequency operation needs some tradeoffs. In this paper a multi-objective design optimization procedure with regard to efficiency and volume has been carried out for an LLC resonant converter used in telecom applications. This optimization algorithm results in the best set of operating frequency, dead time and suitable choice of wide bandgap switches for the primary bridge and the synchronous rectifier in the secondary side. Finally, a 400V to 48V, 1KW LLC resonant converter is designed by the proposed algorithm and a full load efficiency of 96% at 775kHz is obtained.

引用

页码：72 / 77

页数：6

共 15 条

[1] A design methodology for LLC resonant converters based on inspection of resonant tank currents [J].