Improved Level Balancing With Diode-Clamped Multi-Level Inverter Configuration Based on Multi-Winding Transformer

A new configuration for a diode-clamped multi-level inverter based on a multi-winding transformer was proposed andsimulated. the most important difference between this proposed dc-ac-ac structure, and the basic structure is that;in the proposed structure, the back-to-back connected outputs of a multi-winding transformer supersede the capacitorsin the basic structure. the proposed structure provides the equilibrium in the total time of drawing power between thevoltage source steps, as a result, decreasing the unbalancing effect. isolation and capability to produce more outputsteps are other advantages of the proposed schematic compared with the conventional capacitor based diode-clampedstructure. the simulation result shows the ability of this inverter to feed inductive loads.