Abstract
This paper proposes new series of two-stage single-phase multilevel inverter (MLI) topologies that are expandable to generate the desired number of voltage-levels. The isolated DC voltage sources charge the capacitors in the inputs of the presented topologies. The proposed MLIs consist of two parts, a voltage-level generator and an H-bridge inverter. The model predictive control is applied to control the switches. Reduction in the number of utilized power semiconductor devices to provide a high-quality multilevel output voltage and low rate of total harmonic distortion (THD) are the main features of the presented topologies. The PSCAD simulation results verified the performance of the proposed inverter. The comparison results show the reduction of the THD and the number of power switches.
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