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Computation of robust stability regions for time-delayed shipboard microgrid with fuel cell using Kharitonov's theorem.

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Title: Computation of robust stability regions for time-delayed shipboard microgrid with fuel cell using Kharitonov's theorem.
Authors: Abdulridha, Azhar Jabbar1 (AUTHOR) 601347@uotechnology.edu.iq, Ayasun, Saffet2 (AUTHOR) saffetayasun@gazi.edu.tr, Al-Shalah, Muhanned3 (AUTHOR) mmahmood.al-shalah@gazi.edu.tr
Source: COMPEL. 2026, Vol. 45 Issue 3, p506-528. 23p.
Subjects: Robust stability analysis, Microgrids, Fuel cells, Renewable energy sources, Mathematics theorems
Abstract: Purpose: The purpose of this study is to present a detailed and rigorous delay-dependent robust stability assessment of a shipboard microgrid (SMG) integrating a fuel cell. Design/methodology/approach: In the SMG, communication time delays and uncertainties in system parameters adversely affect system frequency stability. An innovative approach is proposed that uses Kharitonov's theorem in conjunction with the stability boundary locus (SBL) method to determine robust stability regions in the space of controller gains, considering both time delays and uncertainties. Findings: This study comprehensively evaluates effects of time delays, parametric uncertainties and the fluctuations of renewable energy sources on these stability regions. Results demonstrate that robust stability regions shrink progressively with increasing time delays and higher levels of parameter uncertainty. Originality/value: The integration of the SBL method with Kharitonov's theorem is unique approach that enables the computation of robust stability regions for SMG in the existence of time delays and uncertainties. Results facilitate the effective synchronization of diesel generators and fuel cells to eliminate any discrepancies in system frequency following a disturbance. [ABSTRACT FROM AUTHOR]
Copyright of COMPEL is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 193101301
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Computation of robust stability regions for time-delayed shipboard microgrid with fuel cell using Kharitonov's theorem.
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  Data: <searchLink fieldCode="AR" term="%22Abdulridha%2C+Azhar+Jabbar%22">Abdulridha, Azhar Jabbar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 601347@uotechnology.edu.iq</i><br /><searchLink fieldCode="AR" term="%22Ayasun%2C+Saffet%22">Ayasun, Saffet</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> saffetayasun@gazi.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Al-Shalah%2C+Muhanned%22">Al-Shalah, Muhanned</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> mmahmood.al-shalah@gazi.edu.tr</i>
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  Data: <searchLink fieldCode="JN" term="%22COMPEL%22">COMPEL</searchLink>. 2026, Vol. 45 Issue 3, p506-528. 23p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Robust+stability+analysis%22">Robust stability analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Microgrids%22">Microgrids</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+cells%22">Fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Renewable+energy+sources%22">Renewable energy sources</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematics+theorems%22">Mathematics theorems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: The purpose of this study is to present a detailed and rigorous delay-dependent robust stability assessment of a shipboard microgrid (SMG) integrating a fuel cell. Design/methodology/approach: In the SMG, communication time delays and uncertainties in system parameters adversely affect system frequency stability. An innovative approach is proposed that uses Kharitonov's theorem in conjunction with the stability boundary locus (SBL) method to determine robust stability regions in the space of controller gains, considering both time delays and uncertainties. Findings: This study comprehensively evaluates effects of time delays, parametric uncertainties and the fluctuations of renewable energy sources on these stability regions. Results demonstrate that robust stability regions shrink progressively with increasing time delays and higher levels of parameter uncertainty. Originality/value: The integration of the SBL method with Kharitonov's theorem is unique approach that enables the computation of robust stability regions for SMG in the existence of time delays and uncertainties. Results facilitate the effective synchronization of diesel generators and fuel cells to eliminate any discrepancies in system frequency following a disturbance. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of COMPEL is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 23
        StartPage: 506
    Subjects:
      – SubjectFull: Robust stability analysis
        Type: general
      – SubjectFull: Microgrids
        Type: general
      – SubjectFull: Fuel cells
        Type: general
      – SubjectFull: Renewable energy sources
        Type: general
      – SubjectFull: Mathematics theorems
        Type: general
    Titles:
      – TitleFull: Computation of robust stability regions for time-delayed shipboard microgrid with fuel cell using Kharitonov's theorem.
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            NameFull: Abdulridha, Azhar Jabbar
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            NameFull: Ayasun, Saffet
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            – D: 01
              M: 05
              Text: 2026
              Type: published
              Y: 2026
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            – TitleFull: COMPEL
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