Combination of Synchronous Condenser and Synthetic Inertia for Frequency Stability Enhancement in Low Inertia Systems

Ha Thi Nguyen, Guangya Yang*, Arne Hejde Nielsen, Peter Højgaard Jensen

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Inertia reduction due to high-level penetration of converter interfaced components may result in frequency stability issues. The paper proposes and analyzes different strategies using synchronous condenser (SC), synthetic inertia (SI) of wind power plant, and their combination to enhance the frequency stability of low inertia systems under various scenarios and wind conditions. Furthermore, one of the SC models includes hardware of automatic voltage regulator (AVR) for better representation of the reality is implemented. The simplified Western Danish power system simulated in real time digital simulator (RTDS) is used as a test system of low inertia to demonstrate the effectiveness of the strategies. The comparative results show that the combination of SC with AVR hardware-in-the-loop test and SI offers a better
    improvement not only on frequency stability (rate of change of frequency and frequency deviation) but also on the system synchronism under various operating conditions.
    Original languageEnglish
    JournalIEEE Transactions on Sustainable Energy
    Volume10
    Issue number3
    Pages (from-to)997 - 1005
    ISSN1949-3029
    DOIs
    Publication statusPublished - 2018

    Keywords

    • Frequency stability
    • Low inertia systems
    • Synchronous condenser
    • Synthetic inertia
    • Wind power

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