Hybrid Multilevel Inverter Topology With Reduced Part Count

A thirteen-level hybrid inverter is realized by amalgamating T-type, active neutral point clamped converter (ANPC) and a two-level converter leg. Compared with conventional multilevel inverters (MLIs), this inverter generates the desired output voltage with reduced components, and the reduction is more significant as the number of voltage level increases. Further, it can be effortlessly extended by appending additional dc-link capacitors while the floating capacitor (FC) which is an integral part of ANPC remains unaltered, thus, requiring no extra sensors. The switching functions derived using a simple logic form equations minimizes the implementation complexity of the FC voltage balancing task. Further, the merit of the proposed inverter is attested through its comprehensive comparison with traditional as well as recent topologies, and it will be proved that the proposed topology exhibits improved lucrative benefits. Finally, the performance of the proposed configuration with its voltage balancing scheme is ascertained through experiments, and the corresponding results are presented.