NONLINEAR FEEDBACK DECOUPLING CONTROL APPLIED TO STACKED MULTICELLULAR CONVERTER

In this article we present the stacked multicellular converter, its basic principle and its model. This topology is very interesting provided that the voltage across the floating capacitors remains in balance, which is not the case when the input voltage changes. In this work we propose a control that ensures the rebalancing of the floating voltages and the decoupling of the system. This is the decoupling control with nonlinear feedback. In the end we present the MATLAB/SIMULINK simulation results obtained for 3x2 cells stacked multicellular converter controlled by decoupling control with nonlinear feedback used as a chopper.