Modeling of Diode Clamped Multilevel Inverter using Sinusoidal PWM

Manoj Prabhakar; B.Kantharaj; Tara B.B; D.Kavitha; Ajith.N

CALL FOR PAPERS : Apr-2023

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25-Apr-23

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Modeling of Diode Clamped Multilevel Inverter using Sinusoidal PWM

Author(s):

Manoj Prabhakar , AIT,CHIKKAMAGALURU; B.Kantharaj, AIT,CHIKKAMAGALURU; Tara B.B, AIT,CHIKKAMAGALURU; D.Kavitha, AIT,CHIKKAMAGALURU; Ajith.N, AIT,CHIKKAMAGALURU

Keywords:

Adjustable Speed Drives, Multilevel Inverters, PWM, THD, DCMI

Abstract:

Multilevel inverter is an important alternative technique in high power, medium voltage power control. Multilevel inverter topology is classified in to diode clamped multilevel inverter (DCMLI), flying capacitors multilevel inverter, cascaded inverter with separate dc source. This project presents diode clamped multilevel inverter with sinusoidal pulse width modulation (SPWM) framework. The carrier based SPWM technique is developed to facilitate its implementation in diode clamped multilevel inverter. Diode clamped multilevel inverter using MOSFET as switching device is used in this particular project. Furthermore, in this study reduction of harmonics has been stressed on using diode clamped multilevel inverters. It also states the adverse effects of Total Harmonic Distortion (THD) on generation and transmission equipments. It also explains about Common Mode Voltage and its effects in brief. Multilevel Inverters have been designed, modeled and simulated and the output results have been depicted in the form of waveforms, THD analysis modules using MATLAB SIMULINK and the results are systematically tabulated.