Online Optimal Feedback Voltage Control of Wind Farms: Decentralized and Asynchronous Implementations

Yifei Guo, houlei Gao, Dong Wang, Qiuwei Wu

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    Abstract

    In this letter, we propose an optimal voltage feed-back control algorithm for wind farms where the voltage set-point of wind-farm-side voltage source converter (WFVSC) and reactive powers of wind turbines (WTs) are coordinated. The proposed control establishes on the gradient descent and operates in an online fashion. Each WT updates its reactive power based on the local instantaneous terminal voltage and therefore, the proposed control can be implemented in a decentralized manner. Besides, we also address its asynchronous counterpart to enhance the practical applicability in real world.
    Original languageEnglish
    JournalIEEE Transactions on Sustainable Energy
    Volume12
    Issue number2
    Pages (from-to)1489 - 1492
    ISSN1949-3029
    DOIs
    Publication statusPublished - 2021

    Keywords

    • Decentralized control
    • Gradient projection
    • Online optimization
    • Voltage control
    • Gradient projection, online optimization, voltage control, voltage source converter-based high-voltage direct-current (VSC-HVDC)
    • Wind farm

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