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

页码：168 / 175

页数：8

共 33 条

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