Comparative Analysis of Different SPWM Techniques for Modular Multilevel Inverter

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Provided by: Inpressco
Topic: Hardware
Format: PDF
An inverter is a device that converts DC to AC at desired output voltage and frequency. Demerits of inverter are less efficiency, high THD (Total Harmonics Distortion) and high switching losses. In this paper, the comparison is shown between three different techniques of sinusoidal pulse width modulation i.e., phase disposition PWM (Pulse Width Modulation), phase opposition PWM and alternate phase opposition disposition PWM used for modular multilevel inverter. The simulation of single phase three, five and seven level modular multilevel inverter has been carried out in Matlab/Simulink and output waveforms of the same are included along with its FFT analysis.
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