A Novel Electrolytic Capacitor-Less Multilevel Inverter with Coupled Inductor

被引：0
|
作者：
Wu, Chi-Shen [1 ]
Chen, Jiann-Fuh [1 ]
Liang, Tsrong-Juu [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan, Taiwan
来源：
2016 ASIAN CONFERENCE ON ENERGY, POWER AND TRANSPORTATION ELECTRIFICATION (ACEPT) | 2016年
关键词：
seven-level inverter; voltage-balancing circuit; coupled-inductor; TOPOLOGIES;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, a novel multilevel electrolytic capacitor-less inverter is proposed. With the three-winding coupled inductor, input voltage can be divided without electrolytic capacitors. Hence, no voltage-balancing circuit is needed. Less power switches are required for the proposed circuit compared to the existing topologies. Only ten switches are required to generate seven-level output. Finally, a laboratory prototype of seven-level inverter with 320V input voltage and 220 Vrms/3kW output is implemented. The efficiency under full load is 94.82%, the maximum efficiency is 96.39% under 74.34 % load. Extended circuit is also proposed.
引用
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页数：6
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