Enhancement of stability delay margins by virtual inertia control for microgrids with time delay

Basit Öğe Kaydı
dc.contributor.authorHasen, Suud Ademnur
dc.contributor.authorsonmez, sahin
dc.contributor.authorAyasun, Saffet
dc.date.accessioned2025-10-24T18:04:18Z
dc.date.available2025-10-24T18:04:18Z
dc.date.issued2022
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractLarge-scale deployment of renewable energy sources (RESs) contributes to fluctuations in the system frequency due to their inherent reduced inertia feature. Time delays have emerged as a major source of concern in microgrids (MGs) as a result of the broad adoption of open communication networks since significant delays inevitably reduce the controller’s performance and even cause instabilities. In this article, a frequency-domain direct method is used to evaluate the impact of the virtual inertia (VI) control on the stability delay margins of MG with communication delays. By avoiding approximation, the approach first removes transcendental terms from characteristic equations and turns the transcendental characteristic equations into regular polynomials. With this method, roots of the original characteristic equation on the imaginary axis correspond to exactly the positive real roots of the new regular polynomial not including any exponential term. This new polynomial can be used to find out whether the system stability is delay- dependent or not and enables us to compute stability delay margin for the delay-dependent stability case. The proposed analytical method is utilized for evaluating stability delay margins with regard to system parameters for various values of proportional-integral (PI) gains where the MG is marginally stable. Moreover, quantitative effect of virtual inertia and damping gains is comprehensively investigated. Based on the results, it is concluded that incorporating VI control enhances stability delay margins and enhances the MG’s stability performance. Theoretical delay margin results are verified using time-domain simulations and quasipolynomial mapping-based root finder (QPmR) algorithm.
dc.identifier.doi10.55730/1300-0632.3935
dc.identifier.endpage2236
dc.identifier.issn1300-0632
dc.identifier.issue6
dc.identifier.startpage2221
dc.identifier.trdizinid1142557
dc.identifier.urihttps://doi.org/10.55730/1300-0632.3935
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1142557
dc.identifier.urihttps://hdl.handle.net/20.500.12899/2780
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.subjectÇevre Mühendisliği
dc.subjectRenewable energy sources
dc.subjectCommunication time delays
dc.subjectmicrogrids
dc.subjectstability delay margin
dc.subjectvirtual inertia
dc.titleEnhancement of stability delay margins by virtual inertia control for microgrids with time delay
dc.typeArticle

Dosyalar

Koleksiyon

TR-Dizin İndeksli Yayınlar Koleksiyonu