Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips

dc.contributor.authorErdocia Zabala, Ioseba
dc.contributor.authorUrtasun Erburu, Andoni
dc.contributor.authorMarroyo Palomo, Luis
dc.contributor.departmentIngeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.date.accessioned2023-02-08T13:04:33Z
dc.date.available2023-06-13T23:00:18Z
dc.date.issued2022
dc.date.updated2023-02-08T09:41:11Z
dc.description.abstractDue to the replacement of synchronous generators, grid operators are currently demanding to control grid-connected inverters in grid–forming mode to make them participate in the maintenance of the grid. To carry this out, the traditional droop controls based on the active and reactive powers are usually adopted, achieving a satisfactory performance in normal operation. Nevertheless, the power-frequency (P-ω) droop may become transiently unstable under voltage dips. This is because of the modification of the active power response caused by the inverter current limitation together with the voltage reduction. To enhance this, the power angle-frequency (δinv-ω) droop is proposed, consisting in employing an estimation of the inverter power angle as input to obtain the inverter frequency. The proposed method provides the inverter with the same performance as the P-ω droop in normal operation, while enhancing considerably the transient stability margins under current limitation. This is thanks to the higher variation of the inverter power angle with the phase difference between the inverter and the grid. Simulation results show the transient stability problems of the P-ω droop as well as the superior performance of the proposed δinv-ω droop control, which has also been verified by means of HIL results.en
dc.description.sponsorshipThis work has been supported by the Spanish State Research Agency (AEI) under grant PID2019-110956RB-I00 /AEI/ 10.13039/501100011033, and by the Public University of Navarre through a doctoral scholarship.en
dc.embargo.lift2023-06-13
dc.embargo.terms2023-06-13
dc.format.mimetypeapplication/pdfen
dc.identifier.citationJ. Erdocia, A. Urtasun and L. Marroyo, "Power Angle–Frequency Droop Control to Enhance Transient Stability of Grid–Forming Inverters under Voltage Dips," in IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022, doi: 10.1109/JESTPE.2022.3182904en
dc.identifier.doi10.1109/JESTPE.2022.3182904
dc.identifier.issn2168-6777
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/44676
dc.language.isoengen
dc.publisherIEEEen
dc.relation.ispartofIEEE Journal of Emerging and Selected Topics in Power Electronics, 2022en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110956RB-I00/ES/
dc.relation.publisherversionhttps://doi.org/10.1109/JESTPE.2022.3182904
dc.rights© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.subjectCurrent limitationen
dc.subjectFrequency controlen
dc.subjectGrid-forming inverteren
dc.subjectInvertersen
dc.subjectPower angleen
dc.subjectPower system stabilityen
dc.subjectRatsen
dc.subjectTransient analysisen
dc.subjectTransient stabilityen
dc.subjectVoltage controlen
dc.subjectVoltage dipen
dc.subjectVoltage fluctuationsen
dc.titlePower angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dipsen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublication
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relation.isAuthorOfPublication7cedc40b-6b94-46fc-951c-536223530127
relation.isAuthorOfPublicationa68eb3e8-cf0e-4b2b-952b-d419a42a5f8c
relation.isAuthorOfPublication.latestForDiscovery2fd3010c-d65f-4635-8759-e18f24b5a78a

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