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A New Self-Balancing Cascaded Multilevel Inverter for Level Doubling Application

C. Sukanya, L.Priyanga, K.Janarthanan, T.Suresh Padmanabhan

A novel level doubling network (LDN) based multilevel inverter (MLI) topology is proposed in this paper. The LDN takes only two switches, which is formed by half-bridge inverter to almost double the number of output voltage levels. The concept (of the proposed LDN) has the capability of self-balancing during positive and negative cycles without any closed-loop control/algorithm. The topology has uses a symmetric cascaded H-bridge MLI. The proposed self-balanced multilevel inverter has eliminates the harmonics level and reduces the number number of switches and losses; which has provide better results compares with conventional six bridge multilevel inverter. The simulation results are verified in MATLAB/SIMULINK model.