A new three phase multilevel inverter with reduced number of switching power devices with Common Mode Voltage elimination

This manuscript proposes a new topology for a 3-φ, multilevel inverter (MLI) with Common Mode Voltage (CMV) elimination. The presented MLI structure is realized with fewer switching power devices compared to the conventional MLI solutions for CMV elimination. A carrier based space vector modulation technique is used to operate the presented MLI. Reduced number of power semiconductors has the advantages of less number of driver circuits, reduced installation space and low cost. Further, owing to the elimination of CMV, the proposed MLI configuration is free from issues like EMI and leakage current. Proposed topology is compared with other topologies to prove its superiority. Simulation results are presented to reconfirm the potential of the proposed MLI.

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