Multiple feedback-control-loops for single-phase full-bridge PWM inverter

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Published Mar 10, 2016
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Volume 12, Issue 1, March 2016

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Jora M. Gonda
Associate Professor, Department of Electrical & Electronics Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore – 575 025
A. Londhe Apurva
PG Student, Associate Professor, Department of Electrical & Electronics Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore – 575 025

Abstract

This paper presents a multiple feedback-loop-control technique for a single-phase full-bridge PWM inverter with output LC filter. The main challenge for an Uninterruptible Power Supply (UPS) is to maintain a high quality sinusoidal voltage under non-linear load conditions as most of the electronic loads are non-linear in nature and for that it needs to be controlled. Multiple feedback consists of two control-loops; one for capacitor voltage and other for inductor current-control. Output voltage and load curren-feedforward-control is used. This technique reduces the distortion in the inverter output voltage and brings it closer to a sine wave. The control concept has been verified using Matlab/Simulink>sup/sup< toolbox and the simulation results are obtained with different types of loads.

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How to Cite
Gonda, J. M., & Londhe Apurva, A. (2016). Multiple feedback-control-loops for single-phase full-bridge PWM inverter. Power Research - A Journal of CPRI, 91–96. Retrieved from https://node6473.myfcloud.com/~geosocin/CPRI/index.php/pr/article/view/228

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