Comparison of Photo Voltaic Array based different topologies of cascaded H-bridge multilevel inverter

This paper mainly deals with three different topologies of cascaded H-Bridge multilevel inverter. The Topology-I is a general type of multilevel inverter (MLI) which has two Photo Voltaic Arrays (PV Arrays) for each phase. In Topology-II the number of PV Arrays has been reduced to one for all the three phases and the usage of transformers come into picture. Topology-Ill uses only one PV Array for all the three phases and the number of switches have been reduced than compared to all other topologies of Cascaded H-bridge multilevel inverter. MATLAB simulations have been carried out for all three Topologies and have been compared with each other.