Paper Info
Title
An On-Line UPS System With Power Factor Correction and Electric Isolation Using BIFRED Converter
Abstract
This paper presents the design consideration and performance analysis of an on-line, low-cost, high performance, and single-phase uninterruptible power supply (UPS) system based on a boost integrated flyback rectifier/energy storage dc/dc (BIFRED) converter. The system consists of an isolated ac/dc BIFRED converter, a bidirectional dc/dc converter, and a dc/ac inverter. It provides input power factor correction, electric isolation of the input from the output, low battery voltage, and control simplicity. Unlike conventional UPS topologies, the electrical isolation is provided using a high frequency transformer that results in a smaller size and lower cost. Detailed circuit operation, analysis, as well as simulation and experiment results are presented. A novel digital control technique is also presented for UPS inverter control. This controller follows the reference current and voltage of the inverter with a delay of two and four sampling periods, respectively.
Year
DOI
Venue
2008
10.1109/TIE.2007.911199
IEEE Transactions on Industrial Electronics
Keywords
Field
DocType
DC-DC power convertors,digital control,power factor correction,rectifiers,uninterruptible power supplies,BIFRED converter,boost integrated flyback rectifier,digital control technique,electric isolation,energy storage dc-dc converter,on-line UPS system,power factor correction,uninterruptible power supply,Battery charger,digital control,integrated converters,inverters,modeling and analysis,power electronic converters,rectifiers,uninterruptible power supplies (UPSs)
Boost converter,Uninterruptible power supply,Flyback converter,Forward converter,Power factor,Control engineering,Flyback transformer,Ćuk converter,Electronic engineering,Engineering,Digital control,Electrical engineering
Journal
Volume
Issue
ISSN
55
2
0278-0046
Citations 
PageRank 
References 
16
2.68
12
Authors
4
Name
Order
Citations
PageRank
A. Nasiri18213.78
Zhong Nie2173.04
Stoyan B. Bekiarov3162.68
Ali Emadi4848150.25