Three-phase rectifiers with suboptimal current injection and improved efficiency

Three-phase diode bridge rectifiers that apply suboptimal current injection and active resistance emulation are analysed. Two types of current injection devices (CIDs) are in the focus, and rectifiers with each CID are analysed for two cases of active resistance emulation: one that applies low-frequ...

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Bibliographic Details
Published in:IET power electronics 2014-04, Vol.7 (4), p.795-804
Main Authors: Darijević, Milan, Janković, Marija, Pejović, Predrag, Kolar, Johann Walter, Nishida, Yasuyuki
Format: Article
Language:English
Subjects:
active resistance emulation
CID
Current injection
current injection devices
Devices
Diodes
discontinuous conduction mode
Filtering
Filtration
Harmonic distortion
input current total harmonic distortion
low‐frequency filtering
Optimization
Rectifiers
rectifying circuits
suboptimal current injection
THD
three‐phase diode bridge rectifiers
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Summary:Three-phase diode bridge rectifiers that apply suboptimal current injection and active resistance emulation are analysed. Two types of current injection devices (CIDs) are in the focus, and rectifiers with each CID are analysed for two cases of active resistance emulation: one that applies low-frequency filtering of the emulator output, and another that does not. Models that cover both continuous and discontinuous conduction mode are developed. To minimise the input current total harmonic distortion (THD), optimisation is performed, showing that in each case the THD is about the same when the emulated resistance takes its optimal value. The results are experimentally verified on a 1.5 kW rectifier.
ISSN:1755-4535
1755-4543
1755-4543
DOI:10.1049/iet-pel.2013.0145