Title :
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
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;
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
DOI :
10.1109/EPE.2007.4417438
