ECONOMIC UPS STRUCTURE WITH PHASE-CONTROLLED BATTERY CHARGER AND INPUT-POWER-FACTOR IMPROVEMENT

Authors
HO WJ LIO JB FENG WS
Citation
Wj. Ho et al., ECONOMIC UPS STRUCTURE WITH PHASE-CONTROLLED BATTERY CHARGER AND INPUT-POWER-FACTOR IMPROVEMENT, IEE proceedings. Electric power applications, 144(4), 1997, pp. 221-226
Citations number
12
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEE proceedings. Electric power applications → ACNP
ISSN journal
13502352
Volume
144
Issue
4
Year of publication
1997
Pages
221 - 226
Database
ISI
SICI code
1350-2352(1997)144:4<221:EUSWPB>2.0.ZU;2-W
Abstract
A new single-phase uninterruptible power supply (UPS) scheme is propos ed. Its advantages when compared with existing UPSs are: no transferri ng time, high efficiency, low implementation cost and high power densi ty. It mainly consists of a minimised power converter which is capable of providing specified constant output voltage, a phase-controlled ba ttery charger, and input-power-factor improvement. The experimental re sults of the developed prototype show a superior performance.