Analysis and design of a single-phase PWM current source rectifier with neutral leg

Author

Zapata, Francisco F. ; Salazar, Lautaro D. ; Espinoza, José R.

Author_Institution

Dept. de Ingenieria Electr., Univ. de Concepcion, Chile

Volume

1

fYear

1998

fDate

31 Aug-4 Sep 1998

Firstpage

519

Abstract

A single-phase PWM current source rectifier with a neutral leg is presented and thoroughly analyzed in this paper. This novel topology is implemented by adding an extra leg to a step-down single-phase PWM rectifier. A single-phase PWM space vector modulation method to reduce the DC output voltage harmonics is proposed. The PWM pattern generation needs a digital system or a DSP based implementation. As compared with a conventional single-phase PWM rectifier, over a 20% improvement of the total harmonic distortion in the output voltage can be obtained. The proposed converter could be applied as a power conditioner module for an electrochemical pilot plant such as an electrowinning copper process and for fast battery chargers in the range of medium power applications

Keywords

AC-DC power convertors; PWM power convertors; harmonic distortion; harmonics suppression; power conversion harmonics; rectifying circuits; DC output voltage harmonics reduction; PWM pattern generation; circuit analysis; circuit design; neutral leg; power conditioner module; single-phase PWM current source rectifier; single-phase PWM space vector modulation method; topology; total harmonic distortion; Copper; Digital signal processing; Digital systems; Leg; Pulse width modulation; Rectifiers; Space vector pulse width modulation; Topology; Total harmonic distortion; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE

Conference_Location

Aachen

Print_ISBN

0-7803-4503-7

Type

conf

DOI

10.1109/IECON.1998.724297

Filename

724297