Reduced-Order-VSM-Based Frequency Controller for Wind Turbines

Liang Lu, Oscar Saborío-Romano, Nicolaos A. Cutululis*

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Frequency support capability is becoming an important requirement for wind turbines, as wind power is increasingly integrated into power systems. In this paper, a frequency controller is implemented and validated. Such a controller allows wind turbines to help regulate the system frequency automatically and includes virtual inertia to help limit the rate of change of frequency. Compared with other methods, the controller achieves satisfactory frequency support capability with considerable simplicity. The controller is added to the grid-side converter controls, together with cascaded inner loops, which enables wind turbines to operate in grid-forming mode with overcurrent protection. The influence of the controller parameters on the frequency response is investigated.
    Original languageEnglish
    Article number528
    JournalEnergies
    Volume14
    Issue number3
    Number of pages11
    ISSN1996-1073
    DOIs
    Publication statusPublished - 2021

    Keywords

    • Wind turbine
    • Frequency control
    • Virtual synchronous machine

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