Performance of Cascaded Diode Bridge Integrated H-Bridge 13 Level Multilevel Inverter

Abstract

Cascaded H-bridge (CBH) Multi Level Inverter (MLI) holds the benefits in the availability of isolated DC links. This topology of CHBMLI is being frequent at usage in the renewable applications. To avoid the switching loss, the main purpose of MLIs lies in the usage of switches. Henceforth, to cope up with the problem, the number of switches is compulsorily increased for the higher level. This paper presents the performance of Two Cell Cascaded Diode Bridge Integrated H-Bridge Multilevel Inverter having thirteen levels. The technique used is based on obtaining the pulses by comparing the sine wave with constant dc source of variable amplitude. With this technique we reduced the frequency of PWM signal and therefore reduce the switching loss of power switches and harmonic components. MATLAB simulation results of this technique shows that THD are reduced to minimum value.