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A Novel Simplified Single-Phase Cascaded Multistring and H-bridge Multilevel Inverter

K. Lakshmi Ganesh, M.Balaji, K. Durga prakash

This paper presents a novel simplified single-phase cascaded Multistring and H-bridge Multilevel inverter. This multilevel inverter produces higher voltage levels which includes nine, eleven, thirteen and fifteen levels operates with 10 switches from three voltage sources. In this configuration all switches operates with fundamental frequency with low switching losses. This multilevel inverter produces higher output voltage levels near to sine wave with less harmonic content. Corresponding increment in number of levels in this multilevel inverter, there is a good considerable decrement in harmonic content. The simulation results are shown in the Matlab/simulink 2009b.