ZVS PWM BUCK-BOOST CONVERTER APPLIED TO REGENERATE THE ENERGY OF A THREE LEVEL NPC VOLTAGE-FED INVERTER WITH MODIFIED UNDELAND SNUBBER

被引：0
|
作者：
Lima, Luiz Ricardo [1 ]
Mezaroba, Marcello [1 ]
de Novaes, Yales Romulo [1 ]
机构：
[1] Univ Santa Catarina State UDESC, BR-89219710 Joinville, SC, Brazil
来源：
XI BRAZILIAN POWER ELECTRONICS CONFERENCE (COBEP 2011) | 2011年
关键词：
NPC; Regenerative; Undeland Snubber; Multilevel Inverter;
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：
This paper analyses the utilization of an energy regeneration circuit in a three-level NPC (Neutral-Point Clamped) voltage-fed inverter using a modified Undeland snubber. The regeneration circuit uses a QSC (Quasi-Square wave Converter) ZVS (Zero Voltage Switching) dc-dc auxiliary converter to restore the energy from the snubber capacitor to the dc bus. The regenerative circuit uses a single active switch and operates independently of the inverter. Operation stages, theoretical waveforms and a design methodology are presented. Experimental results of a 1.5 kVA prototype are included to validate the proposed topology.
引用
收藏
页码：168 / 175
页数：8
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