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dc.contributor.authorDeng, Hanen
dc.contributor.authorFang, Jingyangen
dc.contributor.authorTang, Yien
dc.contributor.authorDebusschere, Vincenten
dc.identifier.citationDeng, H., Fang, J., Tang, Y., & Debusschere, V. (2019). Coupling effect of active and reactive power controls on synchronous stability of VSGs. The 4th IEEE International Future Energy Electronics Conference (IFEEC 2019).en
dc.description.abstractThe virtual synchronous generator (VSG) is emerging as a promising candidate for replacing synchronous generators in more-electronics power systems. Its fundamental objective lies in the regulation of active and reactive power for voltage forming and frequency control. To achieve tight power regulation, VSGs usually have closed-loop active power and reactive power controls. However, this paper reveals that the coupling effect between the active power control and the reactive power control will greatly change the synchronous stability of a VSG. Specifically, the maximum transferred active power and its associated power angle are reduced because of the coupling effect. To quantify this effect, a small-signal model of a grid-tied VSG is constructed, based on which the critical operation point is further analyzed. The power angle curve of VSGs with fixed reactive power output is compared with that of VSGs with constant output voltage amplitude. Finally, the effect of reactive power droop control in increasing the stable operation region is investigated in this paper.en
dc.format.extent6 p.en
dc.rights© 2019 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 works.en
dc.subjectVirtual Synchronous Generatoren
dc.subjectPower Regulationen
dc.subjectEngineering::Electrical and electronic engineering::Power electronicsen
dc.titleCoupling effect of active and reactive power controls on synchronous stability of VSGsen
dc.typeConference Paperen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en
dc.contributor.conferenceThe 4th IEEE International Future Energy Electronics Conference (IFEEC 2019)en
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en
dc.description.versionAccepted versionen
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