Efficiency Improvement of Three-Phase LLC Resonant Converter Using Phase Shedding

被引:0
作者
Arshadi, Sayed Abbas [1 ]
Ordonez, Martin [1 ]
Mohammadi, Mehdi [1 ]
Eberle, Wilson [1 ]
机构
[1] Univ British Columbia, Elect & Comp Engn, Vancouver, BC, Canada
来源
2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2017年
关键词
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
One main advantage of three-phase LLC converters for high power applications is their full-load efficiency. However, issues with light load operation (i.e. low efficiency) requires investigation. In this paper, a new modulation strategy is proposed to improve the light load efficiency of three-phase LLC converters to achieve a better efficiency curve. The proposed strategy uses two different modulation techniques for the three-phase LLC converter: three phase and two phase modulations. Through these two operating modes, phase shedding for the three-phase LLC resonant converter is achieved. In order to validate the theoretical analysis, experimental results of a 3kW three-phase LLC resonant converter are provided. The results show light-load efficiency improvements of up to 2%.
引用
收藏
页码:3771 / 3775
页数:5
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