A Comprehensive Analysis of 17-level Modified H-Bridge Multilevel Inverter

Analysis of 17-level modified H-Bridge multilevel inverter is performed and presented in this paper. The number of components is limited to reduce the total number of components per levels factor, and DC sources are held in the circuit in such a way as to decrease the maximum voltage on the switches. In addition, PWM techniques such as level shifted carrier PWM and ANDed PWM is used to decrease the THD. Thus, parameters deciding the efficiency of the multilevel inverter are improved and simulation results are presented. Finally, analysis of a three-phase H-Bridge MLI connected to squirrel cage induction motor is performed to validate its performance for industrial applications. Parameters deciding the efficiency of multilevel inverter such as maximum voltage rating on the switches, THD, and total number of components per levels factor are addressed with a solution. Performance of the inverter are presented and compared with other topologies to justify 17-level modified Hbridge MLI performance.