A novel nine-switch PWM rectifier-inverter topology for three-phase UPS applications

Author

Liu, Congwei ; Wu, Bin ; Zargari, Navid ; Xu, David

Author_Institution

Ryerson Univ., Toronto

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

A novel three-phase PWM rectifier-inverter topology for UPS applications is proposed in this paper. The topology uses only nine IGBT devices for AC/AC conversion through a quasi DC link circuit. This converter topology features sinusoidal inputs and outputs, unity input power factor, and more importantly, low manufacturing cost. The operating principle of the converter is elaborated and a novel modulation scheme is presented. The performance of the proposed converter is verified by experiments on a 5 kVA prototyping UPS system.

Keywords

AC-AC power convertors; PWM invertors; PWM rectifiers; power factor; power semiconductor switches; switching convertors; uninterruptible power supplies; AC/AC conversion; IGBT devices; apparent power 5 kVA; nine-switch PWM rectifier-inverter topology; quasi DC link circuit; three-phase UPS; unity power factor; Circuits; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Rectifiers; Switches; Switching converters; Topology; Uninterruptible power systems; Power converter; Pulse width modulation; Uninterruptible power supply; Voltage source inverter; Voltage source rectifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417438

Filename

4417438