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Fixed switching frequency predictive control of an asymmetric source dual inverter system with a floating bridge for multilev...

by Md S Chowdhury, Patrick Wheeler, Zhen Huang, Marco Rivera, Chris Gerada
Publication Type
Journal
Journal Name
IET Power Electronics
Publication Date
Volume
TBD
Issue
TBD

This study proposes a modified modulated model predictive control (MMPC) scheme to control an open-end winding induction motor drive using an asymmetric source dual inverter with one floating bridge. The control algorithm uses a modulation algorithm within the cost function optimisation scheme to avoid variable switching frequency. The voltage of the floating capacitor is regulated utilising predefined redundant switching sequences as well as the voltage vector location is identified to improve calculation time. The proposed MMPC scheme enhances the output performance with comparison to the model predictive control scheme. Experimental results are presented to verify theory and simulation results.