Influence of DC Link Capacitance on Power Efficiency of Single-Phase Inverter

被引：0
|
作者：
Liu, Yi [1 ]
Wang, Huai [2 ]
Huang, Meng [1 ]
Zha, Xiaoming [1 ]
Liu, Yushuang [1 ]
机构：
[1] Wuhan Univ, Sch Elect Engn, Wuhan, Hubei, Peoples R China
[2] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark
来源：
2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2018年
关键词：
DC link capacitor; power loss; controllability; voltage ripple;
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：
The capacitor sizing for the capacitive DC link of a single-phase inverter is usually based on a pre-determined voltage ripple limitation, ripple current capability, and/or energy storage requirement. Nevertheless, it is lack of justifications of the pre-determined criteria. This paper aims to investigate the dependency between the DC-link capacitance and the converter-level efficiency of a single-phase inverter. The major sources of the converter power loss, i.e., IGBTs, capacitors, and inductors, are quantitatively modeled considering the varying DC-link voltage. It provides an additional dimension to optimize the capacitor selection for capacitive DC links. The theoretical analyses are verified by both simulations and experiments.
引用
收藏
页码：1498 / 1504
页数：7
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