Analysis and design of gain-scheduling blade-pitch controllers for wind turbine down-regulation*

Alan Wai Hou Lio*, Christos Galinos, Albert Meseguer Urban

*Corresponding author for this work

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

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    Abstract

    The use of down-regulation control strategies on turbines offers a means of stabilising the grid or improving the efficiency of the wind farm. Nonetheless, these de-rating strategies are often imposed upon an existing blade-pitch control structure, resulting in sub-optimal or poor performance. In particular, such an approach would potentially deteriorate the robustness of the rotor speed control loop and excite other turbine dynamics. Thus, this work proposes a blade-pitch control design for de-rating operation, where the strategy takes into account the changes in the aerodynamic characteristics of the turbine caused by down-regulation. Most importantly, the proposed controller retained the desired control bandwidth and robustness properties in both nominal and de-rating operations. Numerical simulations showed that an improvement on the pitch activities during down-regulation could lead to better reductions in the fatigue loads of some key turbine components.
    Original languageEnglish
    Title of host publicationProceedings of the 15th International Conference on Control and Automation (ICCA)
    Number of pages5
    PublisherIEEE
    Publication date2019
    Pages708-712
    ISBN (Print)978-1-7281-1165-0
    ISBN (Electronic)978-1-7281-1164-3
    DOIs
    Publication statusPublished - 2019
    Event15th International Conference on Control and Automation - Edinburgh, United Kingdom
    Duration: 16 Jul 201919 Jul 2019
    Conference number: 15
    http://ieee-icca.org

    Conference

    Conference15th International Conference on Control and Automation
    Number15
    Country/TerritoryUnited Kingdom
    CityEdinburgh
    Period16/07/201919/07/2019
    Internet address
    SeriesIEEE International Conference on Control and Automation, ICCA
    ISSN1948-3449

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