Gain-phase margins-based delay-dependent stability analysis of pitch control system of large wind turbines

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dc.authoridTurksoy, Omer/0000-0003-4620-4503
dc.authoridHAMES, Yakup/0000-0002-6736-2247
dc.contributor.authorTurksoy, Omer
dc.contributor.authorAyasun, Saffet
dc.contributor.authorHames, Yakup
dc.contributor.authorSonmez, Sahin
dc.date.accessioned2024-11-07T13:31:35Z
dc.date.available2024-11-07T13:31:35Z
dc.date.issued2019
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThis paper investigates the effect of gain and phase margins (GPMs) on the delay-dependent stability analysis of the pitch control system (PCS) of large wind turbines (LWTs) with time delays. A frequency-domain based exact method that takes into account both GPMs is utilized to determine stability delay margins in terms of system and controller parameters. A gain-phase margin tester (GPMT) is introduced to the PCS to take into GPMs in delay margin computation. For a wide range of proportional-integral controller gains, time delay values at which the PCS is both stable and have desired stability margin measured by GPMs are computed. The accuracy of stability delay margins is verified by an independent algorithm, Quasi-Polynomial Mapping Based Rootfinder (QPmR) and time-domain simulations. The time-domain simulation studies also indicate that delay margins must be determined considering GPMs to have a better dynamic performance in term of fast damping of oscillations, less overshoot and settling time.
dc.identifier.doi10.1177/0142331219834605
dc.identifier.endpage3636
dc.identifier.issn0142-3312
dc.identifier.issn1477-0369
dc.identifier.issue13
dc.identifier.scopus2-s2.0-85063347397
dc.identifier.scopusqualityQ2
dc.identifier.startpage3626
dc.identifier.urihttps://doi.org/10.1177/0142331219834605
dc.identifier.urihttps://hdl.handle.net/11480/14932
dc.identifier.volume41
dc.identifier.wosWOS:000483664300005
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofTransactions of the Institute of Measurement and Control
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectDelay margin
dc.subjectdirect method
dc.subjectgain-phase margins
dc.subjectlarge wind turbines
dc.subjectpitch control system
dc.subjectQPmR algorithm
dc.subjectstability
dc.titleGain-phase margins-based delay-dependent stability analysis of pitch control system of large wind turbines
dc.typeArticle

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