| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Fernandes, Rodolfo Castanho | |
| dc.creator | Oliveira, Priscila da Silva | |
| dc.creator | Seixas, Falcondes José Mendes | |
| dc.date | 2014-05-20T15:31:28Z | |
| dc.date | 2016-10-25T18:07:19Z | |
| dc.date | 2014-05-20T15:31:28Z | |
| dc.date | 2016-10-25T18:07:19Z | |
| dc.date | 2011-07-01 | |
| dc.date.accessioned | 2017-04-06T00:22:19Z | |
| dc.date.available | 2017-04-06T00:22:19Z | |
| dc.identifier | IEEE Transactions on Power Electronics. Piscataway: IEEE-Inst Electrical Electronics Engineers Inc, v. 26, n. 7, p. 2065-2078, 2011. | |
| dc.identifier | 0885-8993 | |
| dc.identifier | http://hdl.handle.net/11449/40590 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/40590 | |
| dc.identifier | 10.1109/TPEL.2010.2102773 | |
| dc.identifier | WOS:000293751000026 | |
| dc.identifier | http://dx.doi.org/10.1109/TPEL.2010.2102773 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/883351 | |
| dc.description | Multipulse rectifier topologies based on autoconnections are increasingly applied as interface stages between mains and power electronics converters. These topologies are attractive and cost-effective solutions for meeting the requirements of low total harmonic distortion of line current and high power factor. Furthermore, as only a small fraction of the total power required by the load is processed in the magnetic core, the overall resulting volume and weight are reduced. This paper proposes a mathematical analysis based on phasor diagrams that results in a single and general expression capable of unifying all delta and wye step-up or step-down autotransformer connections for 12-and 18-pulse ac-dc converters. The expression obtained allows the choice of a wide range of input/output voltage ratio for step-up or step-down autotransformer, and this general expression is also presented in a graphical form for each converter. Moreover, it simplifies the procedure for determining turn ratios and polarities for all windings of the autotransformer. A routine for easy and fast calculations is developed and validated by a design example. Finally, experimental results are presented along with comments on a 6-kW 220-V line voltage, 400-V rectified voltage, and 18-pulse delta-autoconnected prototype. | |
| dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.language | eng | |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | |
| dc.relation | IEEE Transactions on Power Electronics | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | Autotransformer | |
| dc.subject | multipulse topologies | |
| dc.subject | power factor correction | |
| dc.subject | rectifiers | |
| dc.title | A Family of Autoconnected Transformers for 12-and 18-Pulse Converters-Generalization for Delta and Wye Topologies | |
| dc.type | Otro | |
