A high step-up gain DC-DC converter based on the stacking of three conventional buck boost DC-DC converters

Author

Tanca V, Moises C. ; Barbi, Ivo

Author_Institution

Acad. Dept. of Electr. Eng., Nat. Univ. of San Agustin, Arequipa, Peru

fYear

2011

fDate

11-15 Sept. 2011

Firstpage

196

Lastpage

200

Abstract

A high step-up gain DC-DC converter is proposed on this work based on the stacking of three conventional buck boost dc-dc converters. The principle of operation, statics analysis and simulation results are included in this paper. A laboratory prototype of the proposed converter has been designed and implemented in order to test and verify experimentally, with rated power of 1 kW, 100 V input voltage, 400 V output voltage, 50 kHz switching frequency. The tested results serve to verifier both the operational principle and the quantitative analysis. Beside operation with high static gain, the voltage across the power semiconductors is half of the output voltage, that contributes to reduction of the both conduction and commutation loss.

Keywords

DC-DC power convertors; commutation; buck boost DC-DC converters; commutation loss; conduction loss; frequency 50 kHz; high step-up gain; power 1 kW; power semiconductors; voltage 100 V; voltage 400 V; voltage stress; Capacitors; Inductors; Power generation; Stacking; Stress; Switches; Topology; High step-up gain converter; non-isolated application; stacking conventional converter; voltage gain; voltage stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (COBEP), 2011 Brazilian

Conference_Location

Praiamar

ISSN

2175-8603

Print_ISBN

978-1-4577-1644-7

Electronic_ISBN

2175-8603

Type

conf

DOI

10.1109/COBEP.2011.6085199

Filename

6085199