Power-frequency admittance model of multi-VSGs grid-connected system considering power coupling

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dc.contributor.authorLong, Bo
dc.contributor.authorYang, Wandi
dc.contributor.authorZhu, Shihan
dc.contributor.authorTianxu, Cao
dc.contributor.authorGuerrero, Josep M.
dc.contributor.authorRodríguez, José
dc.contributor.authorZang, Xian
dc.date.accessioned2023-11-03T17:42:56Z
dc.date.available2023-11-03T17:42:56Z
dc.date.issued2024-01
dc.descriptionINDEXACIÓN: SCOPUS.es
dc.description.abstractThe high penetration of renewable energy decreases the inertia of power systems. The virtual synchronous generator (VSG) control technology has good inertia compensation effect and has attracted considerable attention because of the similar external characteristics of synchronous generators. However, the power and frequency oscillation of multi-VSG grid-connected systems seriously threatens the stability of power system. Existing multi-VSG power frequency admittance (PFA) models ignore the power coupling caused by the large line impedance ratio in medium- and low-voltage microgrids, and the accuracy of these models needs improvement. Thus, this study aims to establish a multi-VSG grid-connected PFA model considering power coupling. The influence of power coupling on model accuracy is analyzed, and the impacts of line impedance and reactive loop coefficient on the power-frequency response characteristics are investigated. Simulation results verify that the proposed model has higher accuracy over existing models. © 2023 The Author(s)es
dc.identifier.citationInternational Journal of Electrical Power and Energy Systems, Volume 155, January 2024, Article number 109513es
dc.identifier.doi10.1016/j.ijepes.2023.109513
dc.identifier.issn01420615
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/53821
dc.language.isoenes
dc.publisherElsevier Ltdes
dc.rights.licenseCC BY 4.0 DEED Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectGrid-connected converteres
dc.subjectPower couplinges
dc.subjectPower-frequency-admittance modeles
dc.subjectVirtual synchronous generator (VSG)es
dc.titlePower-frequency admittance model of multi-VSGs grid-connected system considering power couplinges
dc.typeArtículoes
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