Identification of gain and phase margins based robust stability regions for a time-delayed micro-grid system including fractional-order controller in presence of renewable power generation

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dc.contributor.authorGÜNDÜZ, Hakan
dc.contributor.authorsonmez, sahin
dc.contributor.authorAyasun, Saffet
dc.date.accessioned2025-10-24T18:03:59Z
dc.date.available2025-10-24T18:03:59Z
dc.date.issued2022
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractThis study examines the gain and phase margins (GPMs) based robust stability margins in the parameter\rspace of fractional order proportional-integral (FOPI) controller for a micro-grid (MG) system with communication\rtime delays. Fluctuations in renewable energy sources (RESs), uncertainties in parameters of system components and\rcommunication delays could adversely affect the dynamical analysis and frequency stability of the MG system. Such a\rMG system has an interval characteristic due to the parametric variations and the interval transfer functions defined\rby Kharitonov’s theorem, which presents a solution for checking of robust stability. Therefore, this study addresses the\rrobust stability regions containing a set of robust FOPI controller gains for all possible transfer functions of the MG system\rby a simple graphical method working in controller parameter space. In this way, the impact of fractional order degree of\rintegral controller on the robust stability regions is exhaustively examined by the graphical method. Additionally, robust\rperformance of the interval MG system in terms of design specifications including GPMs is analyzed, and the effect of\rGPMs on the robust regions is investigated by the graphical method. Results indicate that GPM parameters provide\rthe desirable performances for the MG and fractional order of integral controller considerably increases the robustness\rof the stability margin of the MG when compared with the integer order PI controller.
dc.identifier.doi10.3906/elk-2108-201
dc.identifier.endpage1114
dc.identifier.issn1300-0632
dc.identifier.issue3
dc.identifier.startpage1097
dc.identifier.trdizinid529562
dc.identifier.urihttps://doi.org/10.3906/elk-2108-201
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/529562
dc.identifier.urihttps://hdl.handle.net/20.500.12899/2583
dc.identifier.volume30
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofTurkish Journal of Electrical Engineering and Computer Sciences
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzTR-Dizin_20251023
dc.subjectMühendislik
dc.subjectElektrik ve Elektronik
dc.subjectBilgisayar Bilimleri
dc.subjectYazılım Mühendisliği
dc.subjectEnerji ve Yakıtlar
dc.titleIdentification of gain and phase margins based robust stability regions for a time-delayed micro-grid system including fractional-order controller in presence of renewable power generation
dc.typeArticle

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