Single-phase PWM rectifier employing three-phase Vienna topology with features of reduced stress and unity power factor operation

This paper investigates the application of a three-phase Vienna topology for PWM rectification from a single-phase power source, with the objective of maintaining a constant, ripple-free DC voltage and achieving unity power factor correction. Through the implementation of interleaved control techniques, it effectively reduces total harmonic distortions in the supply current. The proposed converter’s performance is evaluated through simulation studies designed for 4 kW rating with 110 V, 50 Hz AC input supply and 400 V DC, 10A output and validated using a laboratory prototype model, with scaled ratings of 60.5W with 28 V, 50 Hz, AC input supply and 110 V DC, 0.55 A output. Overall, the findings suggest that the proposed converter design offers promising potential for improving power quality and efficiency in various applications requiring AC–DC conversion from single-phase sources.