High power factor three-phase rectifier with two interleaved single-phase buck rectifier

Author

Badin, Alceu André ; Barbi, Ivo

Author_Institution

Technol. Fed. Univ. of Parana, Curitiba, Brazil

fYear

2011

fDate

11-15 Sept. 2011

Firstpage

183

Lastpage

188

Abstract

In this work, a unity power factor isolated three-phase buck rectifier is proposed. Based on the Scott transformer and using a two interleaved single-phase Buck pre-regulator in continuous conduction mode (CCM), this rectifier is simple and it has the capability to obtain low output voltage. With only two active switches with same reference, only one freewheel diode, the rectifier is able to generate symmetrical currents in the line and a regulated voltage output. The modulation is used conventional SPWM. The control has only one voltage control loop. Theoretical analysis, design procedure, complete simulation results with closed loop operation are given and a 6-kW prototype has been implemented in the laboratory which demonstrated to operate successfully with excellent performance.

Keywords

PWM power convertors; closed loop systems; power factor; power transformers; rectifying circuits; voltage control; CCM; SPWM; Scott transformer; continuous conduction mode; freewheel diode; high power factor three-phase rectifier; interleaved single-phase buck preregulator; interleaved single-phase buck rectifier; power 6 kW; regulated voltage output; unity power factor isolated three-phase buck rectifier; voltage control loop; Inductors; Phase transformers; Reactive power; Rectifiers; Topology; Voltage control; Windings; AC-DC converters; PFC converters; power factor correction; power supplies; sinusoidal pulse width modulated (SPWM); three-phase rectifier;

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.2011.6085194

Filename

6085194