A New Topology For Cascaded Multi-Level Inverter With Symmetrical Extension of H-Bridge

This paper presents a new topology for use in cascaded multilevel inverters. The proposed topology is generated with the addition of two symmetric units across the standard three level H-Bridge inverter. This arrangement, in combination with appropriate switching sequence, can provide thirteen levels. By cascading proposed units, a higher number of voltage levels can be achieved. Universal pulse width modulation strategy is implemented to control the output voltage of the proposed multilevel inverter. To validate the proposal, simulations are conducted in MATLAB/Simulink environment.