Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers
Firing angle or source imbalances between 6-pulse bridges comprising a 12-pulse rectifier lead to current imbalance, due to the finite magnetizing inductance of the interphase transformer. The magnitude of the imbalance is limited by the negative feedback produced by load regulation of the 6-pulse g...
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Institute of Electrical and Electronics Engineers (IEEE)
2014
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Online Access: | http://hdl.handle.net/1721.1/86988 https://orcid.org/0000-0002-0746-6191 https://orcid.org/0000-0002-3443-5702 |
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author | Perreault, David J. Kassakian, John G. |
author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Perreault, David J. Kassakian, John G. |
author_sort | Perreault, David J. |
collection | MIT |
description | Firing angle or source imbalances between 6-pulse bridges comprising a 12-pulse rectifier lead to current imbalance, due to the finite magnetizing inductance of the interphase transformer. The magnitude of the imbalance is limited by the negative feedback produced by load regulation of the 6-pulse groups. This paper uses both an averaged model and a piecewise-linear simulation to obtain a quantitative understanding of this effect. The averaged model is used to predict steady-state current shifts and transient behavior. The piecewise-linear model of the system is then used to verify and extend the results via computer simulation. It is shown that the current imbalance can be accurately predicted by the averaged model, making the model suitable for both feedback control and interphase transformer design. |
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id | mit-1721.1/86988 |
institution | Massachusetts Institute of Technology |
language | en_US |
last_indexed | 2024-09-23T11:10:16Z |
publishDate | 2014 |
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spelling | mit-1721.1/869882022-09-27T17:36:05Z Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers Perreault, David J. Kassakian, John G. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems Perreault, David J. Perreault, David J. Kassakian, John G. Firing angle or source imbalances between 6-pulse bridges comprising a 12-pulse rectifier lead to current imbalance, due to the finite magnetizing inductance of the interphase transformer. The magnitude of the imbalance is limited by the negative feedback produced by load regulation of the 6-pulse groups. This paper uses both an averaged model and a piecewise-linear simulation to obtain a quantitative understanding of this effect. The averaged model is used to predict steady-state current shifts and transient behavior. The piecewise-linear model of the system is then used to verify and extend the results via computer simulation. It is shown that the current imbalance can be accurately predicted by the averaged model, making the model suitable for both feedback control and interphase transformer design. 2014-05-15T15:54:46Z 2014-05-15T15:54:46Z 1995-05 1995-01 Article http://purl.org/eprint/type/JournalArticle 08858993 1941-0107 http://hdl.handle.net/1721.1/86988 Perreault, D.J., and J.G. Kassakian. “Effects of Firing Angle Imbalance on 12-Pulse Rectifiers with Interphase Transformers.” IEEE Trans. Power Electron. 10, no. 3 (May 1995): 257–262. © 1995 IEEE https://orcid.org/0000-0002-0746-6191 https://orcid.org/0000-0002-3443-5702 en_US http://dx.doi.org/10.1109/63.387989 IEEE Transactions on Power Electronics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers (IEEE) Vabulas |
spellingShingle | Perreault, David J. Kassakian, John G. Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers |
title | Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers |
title_full | Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers |
title_fullStr | Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers |
title_full_unstemmed | Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers |
title_short | Effects of firing angle imbalance on 12-pulse rectifiers with interphase transformers |
title_sort | effects of firing angle imbalance on 12 pulse rectifiers with interphase transformers |
url | http://hdl.handle.net/1721.1/86988 https://orcid.org/0000-0002-0746-6191 https://orcid.org/0000-0002-3443-5702 |
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