Conference,

Design and Development of Digital control based Asymmetric Multilevel Inverter for Renewable Energy Systems

, and .
(2013)

Abstract

Multilevel inverter is an effective topology for increasing power demand and reducing harmonics of AC waveforms. This paper presents an efficient seven-level asymmetric cascaded multilevel inverter suited for renewable energy applications. A digital control method employing flip- flops has been proposed which reduces Total Harmonic Distortion (THD) and switching losses compared to the conventional PWM technique. Various performance parameters namely THD, switching loss, first-order distortion factor (DF1) and second-order distortion factor (DF2) is analyzed and a simulation model of the proposed digital control is developed in MATLAB/SIMULINK. Hardware prototype will be built to validate the results.

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