Title :
Three-phase series-buck rectifier with split DC-bus based on the Scott transformer
Author :
Badin, Alceu André ; Barbi, Ivo
Author_Institution :
Dept. of Electr. Eng./Power Electron. Inst., Fed. Univ. of Santa Catarina, Florianopolis
Abstract :
In this paper, a new unity power factor isolated three-phase buck rectifier is presented. Based on the Scott transformer, this rectifier is simple and it has the capability to obtain low output voltage. Besides, it protects against short circuit and it needs no auxiliary circuit for inrush current. Using only two active switches, it is able to generate symmetrical currents in the line and output voltage regulated. 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, as well as results of an experimental verification.
Keywords :
power factor; power transformers; rectifying circuits; voltage control; Scott transformer; short circuit protection; single-phase PWM regulator; split DC-bus; three-phase series-buck rectifier; unity power factor; voltage control loop; voltage regulation; Circuits; Inductors; Low voltage; Phase transformers; Power harmonic filters; Power supplies; Reactive power; Rectifiers; Surge protection; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2008. PESC 2008. IEEE
Conference_Location :
Rhodes
Print_ISBN :
978-1-4244-1667-7
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2008.4591981
