Title :
Unity power factor isolated bridgeless rectifier based on coupled inductors
Author :
Hosseini, Seyed Hossein ; Nazemi, Soheil
Author_Institution :
Islamic Azad Univ., Tabriz, Iran
Abstract :
In this work, a unity power factor rectifier based on coupled inductors is presented. Use of coupled inductors has obtained galvanic isolation between AC and DC sides. Suitable switching pattern based on PWM, makes possible unity power factor operation for this rectifier. The proposed rectifier has a symmetrical configuration which any halves acts on one half cycles. This configuration uses minimum number of power electronics elements, no conventional diode bridge, two switches (IGBT) and two blocking diodes. The proposed rectifier uses two simple controls and supplies a dc load on low voltage and high current. The simulations have been executed on PSCAD/EMTDC demonstrate its results and practicability.
Keywords :
PWM rectifiers; insulated gate bipolar transistors; load flow control; power electronics; power factor; power inductors; power system CAD; AC sides; DC sides; IGBT switches; PSCAD/EMTDC; PWM switching pattern; blocking diodes; coupled inductors; dc load control; galvanic isolation; high current control; isolated bridgeless rectifier; low voltage control; power electronics elements; unity power factor rectifier; Harmonic analysis; Inductance; Inductors; Reactive power; Rectifiers; Switches; Voltage control;
Conference_Titel :
Electrical and Electronics Engineering (ELECO), 2011 7th International Conference on
Conference_Location :
Bursa
Print_ISBN :
978-1-4673-0160-2