Title :
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
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;
Conference_Titel :
Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on
Conference_Location :
Guimaraes
Print_ISBN :
0-7803-3936-3
DOI :
10.1109/ISIE.1997.649034
