An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter

This paper proposes an improved control method based on modified Delta-Sigma Modulator (DSM) to enhance transient response and improve harmonic contents of buck DC-DC converter. The main advantages of the proposed method are improving the output voltage frequency spectrum, correction of the output v...

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Main Authors: M. Abarzadeh, F. Eshaghi, E. Najafi Aghdam
Format: Article
Language:English
Published: Iran University of Science and Technology 2018-03-01
Series:Iranian Journal of Electrical and Electronic Engineering
Subjects:
Online Access:http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2068-1&slc_lang=en&sid=1
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author M. Abarzadeh
F. Eshaghi
E. Najafi Aghdam
author_facet M. Abarzadeh
F. Eshaghi
E. Najafi Aghdam
author_sort M. Abarzadeh
collection DOAJ
description This paper proposes an improved control method based on modified Delta-Sigma Modulator (DSM) to enhance transient response and improve harmonic contents of buck DC-DC converter. The main advantages of the proposed method are improving the output voltage frequency spectrum, correction of the output voltage harmonic contents and sideband harmonics, reduction of switching noise peaks at the output voltage, operating buck converter in continuous current mode independent of load current, significant reduction of inductor current ripple, improving the transient response of buck converter and correction of the input current harmonics. This progress is achieved by applying improved control method based on proposed forgetting function to enhance transient response of buck converter and also by using modified DSM to improve harmonic spectrum of the output voltage and reduce inductor current ripples. The simulation results confirm performance and feasibility of the proposed system.
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2383-3890
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spelling doaj.art-4dc6382ac55e4bf9a7a714c86ca626672022-12-22T00:09:28ZengIran University of Science and TechnologyIranian Journal of Electrical and Electronic Engineering1735-28272383-38902018-03-011412836An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck ConverterM. Abarzadeh0F. Eshaghi1E. Najafi Aghdam2 Renewable Energy and Advanced Power Electronics Research Center, Sahand University of Technology, Tabriz, Iran. Renewable Energy and Advanced Power Electronics Research Center, Sahand University of Technology, Tabriz, Iran. Renewable Energy and Advanced Power Electronics Research Center, Sahand University of Technology, Tabriz, Iran. This paper proposes an improved control method based on modified Delta-Sigma Modulator (DSM) to enhance transient response and improve harmonic contents of buck DC-DC converter. The main advantages of the proposed method are improving the output voltage frequency spectrum, correction of the output voltage harmonic contents and sideband harmonics, reduction of switching noise peaks at the output voltage, operating buck converter in continuous current mode independent of load current, significant reduction of inductor current ripple, improving the transient response of buck converter and correction of the input current harmonics. This progress is achieved by applying improved control method based on proposed forgetting function to enhance transient response of buck converter and also by using modified DSM to improve harmonic spectrum of the output voltage and reduce inductor current ripples. The simulation results confirm performance and feasibility of the proposed system.http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2068-1&slc_lang=en&sid=1Buck Converter Delta-Sigma Modulation Forgetting Function Switching Noise Reduction.
spellingShingle M. Abarzadeh
F. Eshaghi
E. Najafi Aghdam
An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
Iranian Journal of Electrical and Electronic Engineering
Buck Converter
Delta-Sigma Modulation
Forgetting Function
Switching Noise Reduction.
title An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
title_full An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
title_fullStr An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
title_full_unstemmed An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
title_short An Improved Control Method Based on Modified Delta-Sigma Modulator for Buck Converter
title_sort improved control method based on modified delta sigma modulator for buck converter
topic Buck Converter
Delta-Sigma Modulation
Forgetting Function
Switching Noise Reduction.
url http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2068-1&slc_lang=en&sid=1
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