A high-frequency-linked single phase UPS with power factor correction scheme

Author

Hirachi, K. ; Nishimura, K. ; Yoshitsugu, J. ; Arai, Y. ; Chibani, A. ; Nakaoka, M.

Author_Institution

Res. & Dev. Div., Yuasa Corp., Osaka, Japan

Volume

2

fYear

1997

fDate

7-11 Jul 1997

Firstpage

619

Abstract

The single-phase switched mode rectifier (SMR) with a high-frequency isolation transformer link has some advantages as an electrically-isolated AC/DC power conversion circuit for small scale UPS applications. This UPS is capable of eliminating harmonic currents as well as realizing an isolation between AC input and DC output power stage by means of inserting a compact high frequency transformer. Each isolated SMR designed for 2 kVA, 3 kVA and 5 kVA UPS is developed and put into practice. This paper presents a high-frequency link SMR circuit configuration and its control strategy, together with the experimental results of the developed UPS

Keywords

AC-DC power convertors; field effect transistor switches; harmonic distortion; high-frequency transformers; power MOSFET; power factor correction; power field effect transistors; power semiconductor switches; power system harmonics; power transformers; rectifying circuits; switching circuits; uninterruptible power supplies; 2 kVA; 3 kVA; 5 kVA; AC/DC power conversion circuit; circuit configuration; control strategy; electrical isolation; harmonic current elimination; high-frequency isolation transformer link; single-phase UPS; single-phase switched mode rectifier; Batteries; Circuits; Inductors; Power engineering and energy; Power factor correction; Power system harmonics; Pulse width modulation inverters; Rectifiers; Uninterruptible power systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on

Conference_Location

Guimaraes

Print_ISBN

0-7803-3936-3

Type

conf

DOI

10.1109/ISIE.1997.649034

Filename

649034