Computation of stability regions for load frequency control systems including incommensurate time delays

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dc.contributor.authorSonmez, Sahin
dc.date.accessioned2024-11-07T13:24:26Z
dc.date.available2024-11-07T13:24:26Z
dc.date.issued2019
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThis article studies the impact of incommensurate communication time delays on stability regions defined in proportional-integral (PI) controller parameter space for a two-area load frequency control (LFC) system. Distributed power generations and large power plants increase the complexity and control issues of interconnected power systems. In interconnected power systems, LFC systems need to have complex communication networks to exchange data between control center and geographically dispersed generations. The receiving/transmitting of remote measuring data through communication infrastructures causes inevitable time delays, which adversely affect controller performance and stability of the LFC system. Time delays introducing feedback control loops of a multiarea LFC system could exhibit incommensurate characteristics. In this study, a simple graphical method based on extracting a stability boundary locus is implemented to get PI controller parameters responsible for stabilizing the LFC system having incommensurate delay values. The boundaries of the stability regions in the PI controller parameter space are confirmed by time-domain simulations and a numerical algorithm known as the quasipolynomial mapping-based root finder algorithm. Results illustrate that incommensurate delays have remarkable effects on the stability region.
dc.identifier.doi10.3906/elk-1904-6
dc.identifier.endpage4607
dc.identifier.issn1300-0632
dc.identifier.issn1303-6203
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85076636985
dc.identifier.scopusqualityQ3
dc.identifier.startpage4596
dc.identifier.trdizinid338015
dc.identifier.urihttps://doi.org/10.3906/elk-1904-6
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/338015
dc.identifier.urihttps://hdl.handle.net/11480/14116
dc.identifier.volume27
dc.identifier.wosWOS:000506165400041
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Electrical Engineering and Computer Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectIncommensurate time delays
dc.subjectstability region
dc.subjectPI controller design
dc.subjectload frequency control systems
dc.titleComputation of stability regions for load frequency control systems including incommensurate time delays
dc.typeArticle

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