A Three-phase Power-factor Correction Scheme Using an Autotransformer and Two Single-phase Buck Rectifiers
This paper presents a three-phase unidirectional rectifier with power-factor correction (PFC) using two modified single-phase Buck rectifiers in continuous conduction mode (CCM). The phase reduction technique using an autotransformer based on Scott Connection renders a non-isolated rectifier to oper...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Brasil |
| Institución: | Associação Brasileira de Eletrônica de Potência (SOBRAEP) |
| Repositorio: | Eletrônica de Potência (Online) |
| Idioma: | inglés |
| OAI Identifier: | oai:ojs2.journal.sobraep.org.br:article/465 |
| Acceso en línea: | https://journal.sobraep.org.br/index.php/rep/article/view/465 |
| Access Level: | acceso abierto |
| Palabra clave: | buck rectifier AC-DC converters PFC converters Scott Autotransformer sinusoidal pulse width modulated |
| Sumario: | This paper presents a three-phase unidirectional rectifier with power-factor correction (PFC) using two modified single-phase Buck rectifiers in continuous conduction mode (CCM). The phase reduction technique using an autotransformer based on Scott Connection renders a non-isolated rectifier to operate with unity power factor. The power of autotransformer is only 14% of the total output power. Two single-phase buck rectifiers interleaved are able to regulate low voltage output. The control system is simple and it has only one voltage control loop. Theoretical analysis, design procedure and complete simulation results with closed loop operation are given. A 4-kW prototype has also been implemented in the laboratory which demonstrated to operate successfully with excellent performance. |
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