Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters

Load current sharing between parallel-connected DC-DC boost converters is very important for system reliability. This paper proposes a modified droop method based on master current control for parallel-connected DC-DC boost converters. The modified droop method uses an algorithm for parallel-connect...

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Main Authors: Muamer M. Shebani, Tariq Iqbal, John E. Quaicoe
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Journal of Electrical and Computer Engineering
Online Access:http://dx.doi.org/10.1155/2018/9819787
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author Muamer M. Shebani
Tariq Iqbal
John E. Quaicoe
author_facet Muamer M. Shebani
Tariq Iqbal
John E. Quaicoe
author_sort Muamer M. Shebani
collection DOAJ
description Load current sharing between parallel-connected DC-DC boost converters is very important for system reliability. This paper proposes a modified droop method based on master current control for parallel-connected DC-DC boost converters. The modified droop method uses an algorithm for parallel-connected DC-DC boost converters to adaptively adjust the reference voltage for each converter according to the load regulation characteristics of the droop method. Unlike the conventional droop method, the current feedback signal (master current) for one of the parallel-connected converters is used in the inner loop controller for all converters to avoid any differences in the time delay of the control loops for the parallel-connected converters. The algorithm ensures that the load current sharing is identical to the load regulation characteristics of the droop method. The proposed algorithm is tested with a mismatch in the parameters of the parallel converters. The effectiveness of the proposed algorithm is verified using Matlab/Simulink simulation.
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institution Kabale University
issn 2090-0147
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language English
publishDate 2018-01-01
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spelling doaj-art-23d205655c2345b396daf44a6c5b54ad2025-02-03T05:52:46ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552018-01-01201810.1155/2018/98197879819787Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost ConvertersMuamer M. Shebani0Tariq Iqbal1John E. Quaicoe2Department of Electrical and Computer Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL, CanadaDepartment of Electrical and Computer Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL, CanadaDepartment of Electrical and Computer Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL, CanadaLoad current sharing between parallel-connected DC-DC boost converters is very important for system reliability. This paper proposes a modified droop method based on master current control for parallel-connected DC-DC boost converters. The modified droop method uses an algorithm for parallel-connected DC-DC boost converters to adaptively adjust the reference voltage for each converter according to the load regulation characteristics of the droop method. Unlike the conventional droop method, the current feedback signal (master current) for one of the parallel-connected converters is used in the inner loop controller for all converters to avoid any differences in the time delay of the control loops for the parallel-connected converters. The algorithm ensures that the load current sharing is identical to the load regulation characteristics of the droop method. The proposed algorithm is tested with a mismatch in the parameters of the parallel converters. The effectiveness of the proposed algorithm is verified using Matlab/Simulink simulation.http://dx.doi.org/10.1155/2018/9819787
spellingShingle Muamer M. Shebani
Tariq Iqbal
John E. Quaicoe
Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters
Journal of Electrical and Computer Engineering
title Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters
title_full Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters
title_fullStr Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters
title_full_unstemmed Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters
title_short Modified Droop Method Based on Master Current Control for Parallel-Connected DC-DC Boost Converters
title_sort modified droop method based on master current control for parallel connected dc dc boost converters
url http://dx.doi.org/10.1155/2018/9819787
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AT johnequaicoe modifieddroopmethodbasedonmastercurrentcontrolforparallelconnecteddcdcboostconverters