Referenced Items are not available for this document.
This paper presents a novel closed-loop current-control strategy for a hybrid 12-pulse rectifier that uses a two-switch boost stage for output-voltage regulation. Unlike previous attempts to mitigate input-current distortion, e.g., by modulating the rectifier output voltage with open-loop control, this new closed-loop current-control scheme directly controls the line-interphase-transformer input voltage and/or impresses sinusoidal input currents. In this paper, the control strategy is explained and the modulation functions for each (π/6)-wide mains voltage sector are derived. The hardware implementation is described, and experimental results demonstrate that the control strategy ensures a high-quality input current for ideal as well as for distorted/unbalanced mains.
Published in:
Power Electronics, IEEE Transactions on
(Volume:26
,
Issue:
1
)
Date of Publication: Jan. 2011
- Page(s):
- 249 - 259
- ISSN :
- 0885-8993
- INSPEC Accession Number:
- 11728048
- Digital Object Identifier :
- 10.1109/TPEL.2010.2052633
- Product Type:
- Journals & Magazines
- Date of Publication :
- 14 June 2010
- Date of Current Version :
- 30 December 2010
- Issue Date :
- Jan. 2011
- Sponsored by :
- IEEE Power Electronics Society
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