A Straightforward Methodology to Modeling High Power Factor AC-DC Converters
In this paper, a straightforward methodology to modeling high power factor (HPF) ac-dc converters is presented. The proposed methodology is based on the averaging technique directly applied to the converter under modeling. An averaged large-signal equivalent circuit is thus generated, which is usefu...
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Veröffentlicht in: | IEEE transactions on power electronics 2013-10, Vol.28 (10), p.4723-4731 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this paper, a straightforward methodology to modeling high power factor (HPF) ac-dc converters is presented. The proposed methodology is based on the averaging technique directly applied to the converter under modeling. An averaged large-signal equivalent circuit is thus generated, which is useful to perform extremely fast simulations. From the large-signal model, both a steady-state and a small-signal analysis can be carried out to completely model the converter, achieving any desired steady-state characteristic and small-signal transfer function. The presented methodology is very intuitive and allows designers to achieve a natural understanding of the converter behavior. The methodology is illustrated with a HPF buck-boost converter operating in discontinuous conduction mode. Simulation and experimental results are provided to validate the proposed methodology. |
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ISSN: | 0885-8993 1941-0107 |
DOI: | 10.1109/TPEL.2012.2232308 |