PV based soft switched cascaded multilevel inverter fed drive system

Abstract

In this paper, we present the hybrid pulse width modulation technique for soft switched cascaded multilevel inverter with PV panel as renewable energy source. The proposed modulation scheme is hybrid alternative phase opposition disposition. It inherits the switching loss reduction along with reduced harmonic performance of cascaded multilevel inverter fed drive system. The inverter topology used here has recently suggested in the area of high power medium voltage applications. The performance of this cascaded inverter has been analysed using simulation and experimentation. Simulation study of the inverter employing the proposed HAPOD strategy has been done in MATLAB/SIMULINK. AT89C2051 controller is used in the experimental setup.