Published Paper Details:

ABSTRACT: A multilevel inverter is used in power conversion methodology for, high power applications and high voltage in today�s power grid�s, transportation systems, transmission system and industrial motor drives etc. A seven level modified cascaded H bridge inverter is suggested to Reduced number of switching elements, such that the number of driver circuits requiring low dv / dt stress on each switch is also reduced, switching losses also decreased. A seven-level modified cascaded H bridge inverter is simulated and produces the same output voltage of 7 stages, the suggested multilevel inverter needs only 6 switches where 8 switches are needed as the traditional form. This topology can eliminate roughly half the number of switches, there gate drives compared with the existing cascaded multi level inverter A newly modified seven level cascaded H-bridge inverter focus on modeling and simulation of single phase inverter as a frequency changer by PWM. The model is implemented using MATLAB/SIMULINK software. The operation procedure of the inverter is detailed and is demonstrated with SIMULINK. Hence suggested model provides improved performance or more effective with less switching loss and total harmonic distortion. The simulation is carried out in MATLAB2013b, for a seven level modified cascaded H bridge inverter is developed in MATLAB/SIMULIN