Isolated three-phase AC-to-DC bidirectional converter with a small number of switches

Author

Takeuchi, Akira ; Endo, Hishahito ; Muroyama, Seiichi ; Ohtsu, Satoshi

Author_Institution

NTT Integrated Inf. & Energy Syst. Labs., Tokyo, Japan

Volume

1

fYear

1997

fDate

3-6 Aug 1997

Firstpage

479

Abstract

A bidirectional converter that converts three-phase AC to DC or vice versa by using a high-frequency transformer has been investigated. The main feature of the circuit is that it does not need as many switches as the conventional converter. Suitable operating conditions and design considerations for the circuit were clarified by analyzing the steady-state characteristics and resonant reset of the transformer. Circuit operation was verified by simulation, and it was confirmed that AC currents can be controlled as sinusoidal waveforms by using a simple control circuit

Keywords

AC-DC power convertors; electric current control; switching circuits; transformers; AC currents control; circuit operation verification; control circuit; design considerations; high-frequency transformer; inverter mode; operating conditions; rectifier mode; sinusoidal waveforms; steady-state characteristics; switches; three-phase AC-to-DC bidirectional converter; transformer resonant reset; Analog-digital conversion; Circuit simulation; Laboratories; Pulse width modulation; Rectifiers; Resonance; Steady-state; Switches; Switching circuits; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagaoka 1997., Proceedings of the

Conference_Location

Nagaoka

Print_ISBN

0-7803-3823-5

Type

conf

DOI

10.1109/PCCON.1997.645658

Filename

645658