Determination of stability delay margins for multi-area load frequency control systems with incommensurate time delays through eigenvalue tracing method

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dc.authorid0000-0002-0057-2522en_US
dc.contributor.authorAydın, Ömer
dc.contributor.authorSönmez, Şahin
dc.contributor.authorAyasun, Saffet
dc.date.accessioned2022-03-16T20:35:16Z
dc.date.available2022-03-16T20:35:16Z
dc.date.issued2022en_US
dc.departmentMTÖ Üniversitesi, Yeşilyurt Meslek Yüksekokulu, Elektronik ve Otomasyon Bölümüen_US
dc.description.abstractThis work presents delay-dependent stability analysis using eigenvalue tracing method for multi-area load frequency control (LFC) systems with incommensurate time delays. LFC systems face inevitable communication delays that adversely affect the frequency stability. Time delays exceeding the allowable limit lead to system instabilities. In this study, stability delay margins of a time-delayed LFC system are computed by a simple yet effective frequency-domain method for computing critical eigenvalues and the corresponding delay margins without using the characteristic equation of the system. By tracing eigenvalue loci of a transformation matrix, the method easily determines the critical eigenvalues on the imaginary axis and obtains stability delay margins. Both stability delay margins and the effectiveness of stability regions in the time delay space are confirmed by time-domain simulations and the quasi-polynomial mapping-based root finder (QPmR) algorithm. Results indicate that more accurate delay margin values are obtained as compared to ones with Lyapunov stability theory based algorithms.en_US
dc.identifier.citationAydın, Ö., Sönmez, Ş., & Ayasun, S. (2022). Determination of stability delay margins for multi-area load frequency control systems with incommensurate time delays through eigenvalue tracing method. International Journal of Electrical Power & Energy Systems, 137, 107821.en_US
dc.identifier.doi10.1016/j.ijepes.2021.107821
dc.identifier.issn0142-0615en_US
dc.identifier.issue107821en_US
dc.identifier.scopus2-s2.0-85120459958en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.uri10.1016/j.ijepes.2021.107821
dc.identifier.urihttps://hdl.handle.net/20.500.12899/663
dc.identifier.volume137en_US
dc.identifier.wosWOS:000792891500005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSönmez, Şahin
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.relation.ispartofInternational Journal of Electrical Power and Energy Systemsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDelay marginen_US
dc.subjectEigenvalue tracing algorithmen_US
dc.subjectIncommensurate time delaysen_US
dc.subjectLoad frequency controlen_US
dc.subjectStability analysisen_US
dc.titleDetermination of stability delay margins for multi-area load frequency control systems with incommensurate time delays through eigenvalue tracing methoden_US
dc.typeArticleen_US

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