Impact of Inertia Variability on the Transient Stability of Interconnected Power Systems: A Methodology for the Estimation of Transient Stability Margins.
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| Title: | Impact of Inertia Variability on the Transient Stability of Interconnected Power Systems: A Methodology for the Estimation of Transient Stability Margins. |
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| Authors: | Chiodo, Elio1 (AUTHOR), Giannoccaro, Giovanni1 (AUTHOR) giovanni.giannoccaro@unina.it, Lauria, Davide1 (AUTHOR) |
| Source: | Energies (19961073). Jun2026, Vol. 19 Issue 12, p2737. 31p. |
| Subject Terms: | *Interconnected power systems, *Random variables, *Monte Carlo method, *Dynamic stability, *Electric power systems |
| Abstract: | The aim of this paper is to study the impact of the variability of inertia of interconnected electrical systems on transient stability. In the first part of the paper, after formulating the transient stability problem as a boundary value problem, we demonstrate how to evaluate the transient stability margin, considering the impact of the randomness of inertia, with reference to a single area connected to an infinite power grid. In the second part of the paper, we determine the distributional properties of the transient stability margin for two interconnected areas, considering the correlation of the area's inertias, described as random variables. To demonstrate the robustness of the procedure, two case studies are analyzed. In the first case, the random variables are described as correlated lognormal random variables, while in the second they are considered as correlated gamma random variables. The numerical analyses reported in the final part of the paper show an almost linear dependence of transient stability margin from inertia while correlation coefficient affects mainly the transient stability random variable's dispersion rather than its magnitude. Some useful considerations are performed regarding the applicability and validity of the linearized probabilistic method instead of the Monte Carlo method. The Monte Carlo method allows considering the non-linearity of the model, which is more pronounced in the tails. This could affect, in some critical cases, the priority of access to production in the logic of the free market. In such a case, greater accuracy allows for a more transparent mechanism of access to production. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 194909186 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Impact of Inertia Variability on the Transient Stability of Interconnected Power Systems: A Methodology for the Estimation of Transient Stability Margins. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chiodo%2C+Elio%22">Chiodo, Elio</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Giannoccaro%2C+Giovanni%22">Giannoccaro, Giovanni</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> giovanni.giannoccaro@unina.it</i><br /><searchLink fieldCode="AR" term="%22Lauria%2C+Davide%22">Lauria, Davide</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jun2026, Vol. 19 Issue 12, p2737. 31p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Interconnected+power+systems%22">Interconnected power systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Random+variables%22">Random variables</searchLink><br />*<searchLink fieldCode="DE" term="%22Monte+Carlo+method%22">Monte Carlo method</searchLink><br />*<searchLink fieldCode="DE" term="%22Dynamic+stability%22">Dynamic stability</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+power+systems%22">Electric power systems</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The aim of this paper is to study the impact of the variability of inertia of interconnected electrical systems on transient stability. In the first part of the paper, after formulating the transient stability problem as a boundary value problem, we demonstrate how to evaluate the transient stability margin, considering the impact of the randomness of inertia, with reference to a single area connected to an infinite power grid. In the second part of the paper, we determine the distributional properties of the transient stability margin for two interconnected areas, considering the correlation of the area's inertias, described as random variables. To demonstrate the robustness of the procedure, two case studies are analyzed. In the first case, the random variables are described as correlated lognormal random variables, while in the second they are considered as correlated gamma random variables. The numerical analyses reported in the final part of the paper show an almost linear dependence of transient stability margin from inertia while correlation coefficient affects mainly the transient stability random variable's dispersion rather than its magnitude. Some useful considerations are performed regarding the applicability and validity of the linearized probabilistic method instead of the Monte Carlo method. The Monte Carlo method allows considering the non-linearity of the model, which is more pronounced in the tails. This could affect, in some critical cases, the priority of access to production in the logic of the free market. In such a case, greater accuracy allows for a more transparent mechanism of access to production. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194909186 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en19122737 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 31 StartPage: 2737 Subjects: – SubjectFull: Interconnected power systems Type: general – SubjectFull: Random variables Type: general – SubjectFull: Monte Carlo method Type: general – SubjectFull: Dynamic stability Type: general – SubjectFull: Electric power systems Type: general Titles: – TitleFull: Impact of Inertia Variability on the Transient Stability of Interconnected Power Systems: A Methodology for the Estimation of Transient Stability Margins. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chiodo, Elio – PersonEntity: Name: NameFull: Giannoccaro, Giovanni – PersonEntity: Name: NameFull: Lauria, Davide IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 19 – Type: issue Value: 12 Titles: – TitleFull: Energies (19961073) Type: main |
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