Auto Voltage Balancing in High Power DC-DC Converter

This paper develops a systematic and mathematical study of the balancing theory of a three level DC-DC converter. It is proposed to make DC link voltages balanced across the capacitor stack. This voltage distribution gets equally distributed by selecting the appropriate switching frequency. This work is to investigate the new control scheme to incorporate the current adaptive switching in DC-DC converters. The major advantage of this novel scheme is to develop the bi-directional high voltage multilevel converters required in many high power industrial applications. Simulation validates of this proposed scheme.