Coordinated Voltage Control of Renewable Energy Power Plants in Weak Sending-End Power Grid

Yongning Chi, Weihao Li, Qiuwei Wu, Chao Liu

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

    Abstract

    The renewable energy connected to the sending-end power grid is increasing rapidly. This paper proposes a coordinated voltage control strategy based on Model Predictive Control (MPC) for renewable power plants of wind and solar power connected to the weak sending-end power grid. Wind Turbine Generators (WTGs), Photovoltaic Arrays (PVAs) and Static Synchronous Compensator (STATCOM) are coordinated to keep voltages within the feasible range during operation, which makes full use of the reactive power capability of WTGs and PVAs. Besides, the impact of active power outputs of WTGs and PVAs on voltage control are taken into consideration because of the high R/X ratio of the collector system. To improve the computation efficiency, an analytical method is used for the calculation of sensitivity coefficients. A renewable energy power plant with 80 WTGs and 20 PVAs connected to a weak sending-end power grid was used to verify the proposed voltage control strategy.

    Original languageEnglish
    Title of host publicationProceedings of 2020 IEEE/IAS Industrial and Commercial Power System Asia
    PublisherIEEE
    Publication dateJul 2020
    Pages1108-1113
    Article number9208461
    ISBN (Electronic)9781728143033
    DOIs
    Publication statusPublished - Jul 2020
    Event2020 IEEE/IAS Industrial and Commercial Power System Asia - Weihai, China
    Duration: 13 Jul 202016 Jul 2020
    https://ieeexplore.ieee.org/xpl/conhome/9204010/proceeding

    Conference

    Conference2020 IEEE/IAS Industrial and Commercial Power System Asia
    Country/TerritoryChina
    CityWeihai
    Period13/07/202016/07/2020
    Internet address

    Keywords

    • Coordinated voltage control
    • Model predictive control
    • Renewable energy
    • Solar power
    • Weak sending-end
    • Wind power

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