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Design of Passivity-based Damping Controller for Suppressing Power Oscillations in DC Microgrids

    • Yeungnam University
    • Aalborg University

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    In this paper, a novel damping control scheme for V/I droop-controlled DC microgrids is proposed to attenuate the oscillatory components in the power and current. At first, the model of the DC microgrid is introduced providing stability analysis. Then, the damping controller is designed using the interconnection and damping assignment — passivity-based control (IDA-PBC) methodology. In addition, the gain design technique for the IDA-PBC is developed. The proposed control scheme ensures that the oscillations of the output power and current are effectively attenuated. The validity of the proposed control algorithm has been verified by the results from both hardware in-the-loop simulation (HILS) and proto-type experiments.
    Original languageEnglish
    JournalIEEE Transactions on Power Electronics
    Volume36
    Issue number4
    Pages (from-to)4016 - 4028
    ISSN0885-8993
    DOIs
    Publication statusPublished - 2020

    Keywords

    • DC microgrids
    • Damping controller
    • IDA-PBC
    • V/I droop

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