Projeto de um retificador Vienna com elevado fator de potência usando a técnica de controle de um ciclo

Abstract

The converters CA-CC are a most used converters in industry and be present in practically all electronic devices, illumination systems, laptops, biomedical equipment and others. However, this converter behaves as nonlinear load to electric system and producing a non-linear current and have high value of Total Harmonic Distortion (THD). To around this issue, the Power Factor Correction (PFC) is made using dedicated control techniques. This work presents a three-phase CA-CC boost converter PWM with load voltage control and high power factor using the control technique One Cycle Control (OCC). The converter has as main characteristics: high efficiency, simplicity, high power factor in addition to reduced size and weight. The PFC is get with three bidirectional switches that process a part of total power, because the most part is sent directly by diodes of the CA-CC converter. In this work, is presents the theoretical and computational study of the a three-phase CA-CC topology of boost converter PFC using the control technique OCC. The theoretical waveforms be presented to validate the control technique.