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Interaction Analysis of Offshore Power Systems: A Comparative Study.

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Title: Interaction Analysis of Offshore Power Systems: A Comparative Study.
Authors: Piekarz, Michał1 (AUTHOR), Robak, Sylwester1 (AUTHOR) sylwester.robak@pw.edu.pl, Polewaczyk, Mateusz1 (AUTHOR)
Source: Energies (19961073). Dec2025, Vol. 18 Issue 24, p6531. 27p.
Subjects: Comparative studies, Eigenanalysis, Dynamical systems, Ocean energy resources, Frequency response, System analysis
Abstract: This paper presents a comparative assessment of interaction analysis methods applied to a multi-variant offshore power system model. Complementary analytical techniques—eigenvalue analysis, frequency–response characteristics, RGA, DRGA, and GDRG—are used to quantify interactions across electromechanical and electromagnetic frequency ranges. The main novelty of this study is a modified DRGA approach that incorporates a hybrid FIR/IIR digital filtering stage, significantly improving the accuracy of interaction evaluations. The results show that no single method provides complete data and that the enhanced DRGA and GDRG techniques are essential for interaction analysis. The proposed framework offers practical guidelines for analyzing and coordinating control loops in offshore grids. [ABSTRACT FROM AUTHOR]
Copyright of Energies (19961073) is the property of MDPI 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.)
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DbLabel: Engineering Source
An: 190470646
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  Data: Interaction Analysis of Offshore Power Systems: A Comparative Study.
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  Data: <searchLink fieldCode="AR" term="%22Piekarz%2C+Michał%22">Piekarz, Michał</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Robak%2C+Sylwester%22">Robak, Sylwester</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sylwester.robak@pw.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Polewaczyk%2C+Mateusz%22">Polewaczyk, Mateusz</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Dec2025, Vol. 18 Issue 24, p6531. 27p.
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  Data: <searchLink fieldCode="DE" term="%22Comparative+studies%22">Comparative studies</searchLink><br /><searchLink fieldCode="DE" term="%22Eigenanalysis%22">Eigenanalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamical+systems%22">Dynamical systems</searchLink><br /><searchLink fieldCode="DE" term="%22Ocean+energy+resources%22">Ocean energy resources</searchLink><br /><searchLink fieldCode="DE" term="%22Frequency+response%22">Frequency response</searchLink><br /><searchLink fieldCode="DE" term="%22System+analysis%22">System analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents a comparative assessment of interaction analysis methods applied to a multi-variant offshore power system model. Complementary analytical techniques—eigenvalue analysis, frequency–response characteristics, RGA, DRGA, and GDRG—are used to quantify interactions across electromechanical and electromagnetic frequency ranges. The main novelty of this study is a modified DRGA approach that incorporates a hybrid FIR/IIR digital filtering stage, significantly improving the accuracy of interaction evaluations. The results show that no single method provides complete data and that the enhanced DRGA and GDRG techniques are essential for interaction analysis. The proposed framework offers practical guidelines for analyzing and coordinating control loops in offshore grids. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Energies (19961073) is the property of MDPI 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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        Value: 10.3390/en18246531
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        Text: English
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      – SubjectFull: Dynamical systems
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      – SubjectFull: Ocean energy resources
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      – SubjectFull: Frequency response
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      – SubjectFull: System analysis
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      – TitleFull: Interaction Analysis of Offshore Power Systems: A Comparative Study.
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              Text: Dec2025
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