Virtual resistance based active damping solution for constant power instability in AC microgrids

D. M. Vilathgamuwa, X. N. Zhang, S. D.G. Jayasinghe, B. S. Bhangu, C. J. Gajanayake, King Jet Tseng

Research output: Chapter in Book/Conference paperConference paperpeer-review

22 Citations (Scopus)

Abstract

With ever-increasing share of power electronic loads constant power instability is becoming a significant issue in microgrids, especially when they operate in the islanding mode. Transient conditions like resistive load-shedding or sudden increase of constant power loads (CPL) might destabilize the whole system. Modeling and stability analysis of AC microgrids with CPLs have already been discussed in literature. However, no effective solutions are provided to stabilize this kind of system. Therefore, this paper proposes a virtual resistance based active damping method to eliminate constant power instability in AC microgrids. Advantages and limitations of the proposed method are also discussed in detail. Simulation results are presented to validate the proposed active damping solution.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
Pages3646-3651
Number of pages6
DOIs
Publication statusPublished - 1 Dec 2011
Externally publishedYes
Event37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011 - Melbourne, VIC, Australia
Duration: 7 Nov 201110 Nov 2011

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Conference

Conference37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
Country/TerritoryAustralia
CityMelbourne, VIC
Period7/11/1110/11/11

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