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Modified one-cycle controlled bidirectional high-power-factor ac-to-dc converter

DSpace at IIT Bombay

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Title Modified one-cycle controlled bidirectional high-power-factor ac-to-dc converter
 
Creator GHODKE, DV
CHATTERJEE, K
FERNANDES, BG
 
Subject factor-correction circuits
3-phase pwm rectifiers
voltage sensors
phase
state
bidirectional ac-to-dc converter
high-power-factor converter
improved light load stability
one-cycle control (occ)
 
Description AC-to-DC converters based on one-cycle control exhibit instability in current control at light load conditions as well as when they are operating in I the inverting mode. In this paper, a modified one-cycle controller for bidirectional ac-to-dc converter is proposed. A fictitious current component in phase with the e utility voltage is synthesized. The sum of this current component and the actual load current is compared with the sawtooth waveform to generate the gating pulses for the switches. This modification not only renders stability to the converter at light load conditions and the inverting mode of operations but also enables the converter to seamlessly transfer its operation from the rectifying mode to the inverting mode and vice versa. Detailed simulation studies are carried out to verify the effectiveness of the proposed scheme. To validate the viability of the scheme, detailed experimental studies are carried out on a 2-kW laboratory prototype.
 
Publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
 
Date 2011-08-01T07:52:07Z
2011-12-26T12:53:19Z
2011-12-27T05:40:36Z
2011-08-01T07:52:07Z
2011-12-26T12:53:19Z
2011-12-27T05:40:36Z
2008
 
Type Article
 
Identifier IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 55(6), 2459-2472
0278-0046
http://dx.doi.org/10.1109/TIE.2008.921671
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8385
http://hdl.handle.net/10054/8385
 
Language en