Network Topology Invariant Stability Certificates for DC Microgrids with Arbitrary Load Dynamics

Petr Vorobev, Samuel Chevalier, Kathleen Cavanagh, Konstantin Turitsyn, Federico Ibanez, Luca Daniel

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Abstract

DC microgrids are prone to small-signal instabilities due to the presence of tightly regulated loads. This paper develops a decentralized stability certificate which is capable of certifying the small-signal stability of an islanded DC network containing such loads. Utilizing a novel homotopy approach, the proposed standards ensure that no system eigenmodes are able to cross into the unstable right half plane for a continuous range of controller gain levels. The resulting “standards” can be applied to variety of grid components which meet the specified, but non-unique, criteria. These standards thus take a step towards offering plug-and-play operability of DC microgrids. The proposed theorems are explicitly illustrated and numerically validated on multiple DC microgrid test-cases containing both buck and boost converter dynamics
Original languageEnglish
Title of host publicationProceedings of 2022 IEEE Power & Energy Society General Meeting (PESGM)
Number of pages1
PublisherIEEE
Publication date2022
ISBN (Electronic)978-1-6654-0823-3
DOIs
Publication statusPublished - 2022
EventIEEE Power and Energy Society General Meeting - Denver, United States
Duration: 17 Jul 202221 Jul 2022

Conference

ConferenceIEEE Power and Energy Society General Meeting
Country/TerritoryUnited States
CityDenver
Period17/07/202221/07/2022
SeriesIeee Power and Energy Society General Meeting
ISSN1944-9933

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