Scalable-voltage current-link power electronic system for multi-phase AC or DC loads

摘要

An electronics power system includes a plurality of substantially identical power electronic modules, Each power electronic module includes a single-phase DC/AC inverter having an output side. Each power electronic module further includes a medium/high-fi-equency-isoiated DC/DC current-to-voltage converter having an input side. The medium/high-frequency-isolated DC/DC current-to-voltage converter drives the single-phase DC/ AC inverter. Each DC/DC converter and its corresponding DC/ AC inverter are connected back-to-back sharing a common DC-link. The plurality of power electronics modules is stacked together in series at the input side and in parallel or series/parallel at the output side.