Modeling of asymmetrical boost converters
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2014
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| _version_ | 1876483510456287232 |
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| author | E. I. Arango Zuluaga |
| author_facet | E. I. Arango Zuluaga |
| contents | Modeling of asymmetrical boost converters E. I. Arango Zuluaga C. A. Ramos-Paja A. J. Saavedra-Montes Ingeniería DC modeling DC switching converters asymmetrical interleaved discontinuous conduction mode The asymmetrical interleaved dual boost (AIDB) is a fifth-order DC/DC converter designed to interface photovoltaic (PV) panels. The AIDB produces small current harmonics to the PV panels, reducing the power losses caused by the converter operation. Moreover, the AIDB provides a large voltage conversion ratio, which is required to step-up the PV voltage to the large dc-link voltage used in grid-connected inverters. To reject irradiance and load disturbances, the AIDB must be operated in a closed-loop and a dynamic model is required. Given that the AIDB converter operates in Discontinuous Conduction Mode (DCM), classical modeling approaches based on Continuous Conduction Mode (CCM) are not valid. Moreover, classical DCM modeling techniques are not suitable for the AIDB converter. Therefore, this paper develops a novel mathematical model for the AIDB converter, which is suitable for control-pur-poses. The proposed model is based on the calculation of a diode current that is typically disregarded. Moreover, because the tradi-tional correction to the second duty cycle reported in literature is not effective, a new equation is designed. The model accuracy is contrasted with circuital simulations in time and frequency domains, obtaining satisfactory results. Finally, the usefulness of the model in control applications is illustrated with an application example. 2014 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64330696010 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.1 Vol.34 |
| format | Artículo científico |
| id | redalyc_64330696010 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Modeling of asymmetrical boost converters E. I. Arango Zuluaga Ingeniería DC modeling DC switching converters asymmetrical interleaved discontinuous conduction mode Modeling of asymmetrical boost converters E. I. Arango Zuluaga C. A. Ramos-Paja A. J. Saavedra-Montes Ingeniería DC modeling DC switching converters asymmetrical interleaved discontinuous conduction mode The asymmetrical interleaved dual boost (AIDB) is a fifth-order DC/DC converter designed to interface photovoltaic (PV) panels. The AIDB produces small current harmonics to the PV panels, reducing the power losses caused by the converter operation. Moreover, the AIDB provides a large voltage conversion ratio, which is required to step-up the PV voltage to the large dc-link voltage used in grid-connected inverters. To reject irradiance and load disturbances, the AIDB must be operated in a closed-loop and a dynamic model is required. Given that the AIDB converter operates in Discontinuous Conduction Mode (DCM), classical modeling approaches based on Continuous Conduction Mode (CCM) are not valid. Moreover, classical DCM modeling techniques are not suitable for the AIDB converter. Therefore, this paper develops a novel mathematical model for the AIDB converter, which is suitable for control-pur-poses. The proposed model is based on the calculation of a diode current that is typically disregarded. Moreover, because the tradi-tional correction to the second duty cycle reported in literature is not effective, a new equation is designed. The model accuracy is contrasted with circuital simulations in time and frequency domains, obtaining satisfactory results. Finally, the usefulness of the model in control applications is illustrated with an application example. 2014 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64330696010 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.1 Vol.34 |
| title | Modeling of asymmetrical boost converters |
| topic | Ingeniería DC modeling DC switching converters asymmetrical interleaved discontinuous conduction mode |
| url | https://www.redalyc.org/articulo.oa?id=64330696010 |