Modular control of a differential-mode inverter

Recently, the operation of a new class of three-phase differential-mode inverter have been proposed and their efficacy demonstrated using a discontinuous-modulation-scheme (DMS) based differential-mode Ćuk inverter (DMCI). DMS-based DMCI has a completely-modular topological configuration. To extend this modularity of the power stage to control implementation, one has to deal with the nonlinearity due to converter topology and DMS-based topological switching. This paper, starting with an original non-modular control scheme developed based on multi-module sensing and control transitions to a modular control of the DMCI. Experimental results validate the efficacy of the control implementation.