Sinusoidal Reference Technique for Power Factor Correction of a SEPIC Converter Fed from AC Supply

Abstract

This paper presents a simple and efficient technique for power factor correction (PFC) and total harmonic distortion (THD) minimization of a SEPIC converter fed from AC supply. The performance of the SEPIC converter is studied through the power simulation program (PSIM) under different supply conditions with different loads. The obtained results have shown a very simple technique to obtain sinusoidal supply current at unity power factor with the different loads. Also, the proposed control technique can give sinusoidal supply current whatever the exciting supply contains harmonics or not.