New multi-level inverter topology with reduced number of switches

In this study, a new multilevel inverter topology using modified H bridge with reduced number of switches has been proposed which can be operated in “symmetric” or “asymmetric” modes. Higher number of levels leads to generation of a high quality with low Total Harmonic Distortion (THD) output voltage waveform. To increase number of voltage levels, for determination of magnitude of DC voltage sources three algorithms are proposed which are investigated and the most effective one is introduced. To verify operation of proposed topology, it is modeled and simulated in MATLAB/SIMULINK software as well as in hardware. Proper performance of proposed topology is confirmed by obtained experimental results.