DocumentCode :
2421557
Title :
Control strategy for a three-phase to single-phase power converter using an active buffer with a small capacitor
Author :
Ohnuma, Yoshiya ; Itoh, Jun-Ichi
Author_Institution :
Dept. of Electr. Electron. & Inf. Eng., Nagaoka Univ. of Technol., Nagaoka, Japan
fYear :
2009
fDate :
17-20 May 2009
Firstpage :
1030
Lastpage :
1035
Abstract :
A novel three-to-single-phase power converter that allows for smaller smoothing capacitors in the DC link is proposed. Large smoothing capacitors are conventionally required in such converters to absorb power ripple at twice the frequency of the single phase AC. The proposed topology consists of an indirect matrix converter and an active snubber to absorb the power ripple, and does not require a reactor or large smoothing capacitors. In this paper, the fundamental operation of the proposed converter is confirmed through simulations and experiments. The experimental results indicate that for a 1 kW-class prototype circuit, the power ripple at twice the frequency of the power supply can be adequately suppressed using a buffer capacitor of only 50 muF. Moreover, the single-phase power factor of over 99% and good waveforms for input and output current.
Keywords :
AC-AC power convertors; buffer circuits; matrix convertors; power capacitors; power factor; smoothing circuits; snubbers; DC link; active buffer; active snubber; buffer capacitor; capacitance 50 muF; converter topology; indirect matrix converter; power 1 kW; power ripple; power supply; single-phase power factor; smoothing capacitors; three-to-single-phase power converter control; Capacitors; Circuit simulation; Frequency conversion; Inductors; Matrix converters; Power supplies; Prototypes; Smoothing methods; Snubbers; Topology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3556-2
Electronic_ISBN :
978-1-4244-3557-9
Type :
conf
DOI :
10.1109/IPEMC.2009.5157536
Filename :
5157536
Link To Document :
بازگشت