SOP-Based Hybrid H-Bridge Nine Level Inverter Using PI Controller

Maha lakshmi

Abstract


This paper over observed the medium-voltage (MV) multilevel converters with an emphasis on attaining less harmonic distortion and worthy effectiveness at low switching frequency operation. Generating of gate signals for hybrid cascaded multilevel inverter at low switching frequency using Synchronous Optimal Pulse width Modulation technique. The PI controller controls the output voltage of nine levels MLI by manipulating the modulation index of gate driver circuit. In proposed inverter the number of DC sources in cascaded hybrid MLI is reduced by incorporating of diodes and capacitors. This hybrid cascaded multilevel inverter allows operation at multiple of dc-link voltage and reduce the total harmonic distortion (THD). Low switching frequency reduces the switching losses of the power semiconductor devices.

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References


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DOI: https://doi.org/10.37628/ijacs.v1i1.242

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