Ct. Pan et Tc. Chen, STEP-UP DOWN 3-PHASE AC TO DC CONVERTER WITH SINUSOIDAL INPUT CURRENTAND UNITY POWER-FACTOR, IEE proceedings. Part B. Electric power applications, 141(2), 1994, pp. 77-84
In the paper, a novel three-phase AC to DC convertor is proposed to ac
hieve sinusoidal current waveform and unity power factor at the input,
and to simplify the control of all switches. In addition, the new con
vertor has both step-up and step-down capability and no current sensor
is required for the current control. The steady-state analysis such a
s DC model, harmonic analysis of the input current and some design con
siderations are presented. Finally, some experimental results are give
n for demonstration.