Title :
A novel unity power factor input stage for AC drive application
Author :
Maswood, Ali I. ; Liu, Fangrui
Author_Institution :
Center for Adv. Power Electron., Nanyang Technol. Univ., Sinagpore, Singapore
fDate :
7/1/2005 12:00:00 AM
Abstract :
In this paper, a new method of improving the input current total harmonic distortion (THD) as well as power factor of a three-phase suppressed-link rectifier-inverter is presented. This proposed method makes use of a novel controlled diode rectifier. The technique involves the use of bidirectional switches across the front-end rectifier, and a dSPACE based intelligent control algorithm. The operation of the converter is fully analyzed and design example provided. The main feature of the topology is low cost, small size, high efficiency and simplicity, and is excellent for retrofitting front-end rectifier of existing ac drives, UPS etc.
Keywords :
AC motor drives; diodes; harmonic distortion; intelligent control; invertors; machine control; maintenance engineering; network topology; power factor; rectifying circuits; switching convertors; THD; ac drive application; dSPACE; diode rectifier; front-end rectifier; intelligent control algorithm; retrofitting front-end rectifier; three-phase suppressed link rectifier inverter; total harmonic distortion; unity power factor; Diodes; Drives; Power harmonic filters; Pulse width modulation; Reactive power; Rectifiers; Switches; Topology; Total harmonic distortion; Voltage; Drives; power factor; three-phase rectifier; total harmonic distortion (THD);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2005.850930
