Abstract
In the present scenario to meet out the goal, recent technology of multilevel inverter has introduced which helps to provide a very useful alternative in the field of huge power and a moderate range of voltage applications. Under this work, an attempt has been made to study the complex nature due to nonlinearities and chaos in cascaded multilevel dc to the ac converter system. Nonlinear behavior phenomena are observed in three-phase inverter and cascaded multilevel H-bridge inverter using Matlab / Simulink software package. By various observations, it is reported that the dc to ac converter shifted their position from a stable operating condition to unstable operating conditions as the bifurcation parameter like load varied for the power inverter system. Simulation results obtained through software Matlab / Simulink demonstrate output voltage and current waveform of inverter along with its FFT spectrum. This study for getting information about the nonlinear behavior of power multilevel inverter system is playing a very vital role in designing and fabrication of practical circuits in the power electronics field.
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