Development of a new three-to-five phase bi-directional partial resonant AC Link converter

This paper proposes a novel three-to-five phase bi-directional partial resonant AC Link converter. The converter has three phase input with five phase output operating at variable voltage and variable frequency. The proposed topology uses two bi-directional switches for each leg of the converter resulting in a total of 16 switches. The high frequency charging and discharging of the link inductor is the main criteria for power transfer from input to output. In each cycle a small interval is allocated for resonances which enables the switches for soft zero voltage turn on and turn off. The converter has the ability for buck and boost operation. This paper proposes the basic control algorithm by considering only the large vectors of this converter topology. Simulation and real-time results are shown for the verification of the proposed converter.