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Mathematical approach to modelling sigmoidal power curves for Wind Energy Conversion Systems

Kaleem Khodabux, Bhamini S. Bhujun, Rani Chinnappa Naidu, Krishna Busawon

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    3 Citations (Scopus)

    Abstract

    The output power of a wind turbine is usually found to follow a sigmoid curve as a function of wind speed. As a result, identifying the appropriate sigmoid curve to fit the wind turbine power curve is crucial for maximizing the turbine's performance. In this paper, we analyse the effectiveness of several renowned sigmoid functions to correctly model the power curve of a wind turbine with minimum convergence error and reduced complexity. The Logistic and Hill functions are among the candidates. We show that all of the aforementioned sigmoid functions are best suited for modelling WEC power curves if the sigmoid functions' parameters are appropriately determined and adjusted to account for the delay in the power response and to perform as a cubic function in the wind speed locally. When it comes to interpreting the physical meaning of the underlying parameters, they each have their own advantages and drawbacks. Experimental data from a wind farm in Mauritius is used to validate the model.

    Original languageEnglish
    Title of host publication2022 7th International Conference on Environment Friendly Energies and Applications
    Subtitle of host publicationRenewable and Sustainable Energy Systems, Hybrid Transportation Systems, Energy Transition, and Energy Security
    PublisherIEEE
    Number of pages6
    ISBN (Electronic)9798350333213
    ISBN (Print)9798350333220
    DOIs
    Publication statusPublished - 16 Dec 2022
    Event7th International Conference on Environment Friendly Energies and Applications, EFEA 2022 - Bagatelle Moka MU, Mauritius
    Duration: 14 Dec 202216 Dec 2022

    Publication series

    NameProceedings of the IEEE International Symposium on Environment Friendly Energies and Applications
    PublisherIEEE
    ISSN (Print)2641-5925
    ISSN (Electronic)2688-2558

    Conference

    Conference7th International Conference on Environment Friendly Energies and Applications, EFEA 2022
    Country/TerritoryMauritius
    CityBagatelle Moka MU
    Period14/12/2216/12/22

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    Keywords

    • Hill function
    • Logistic function
    • Power curve
    • Weibull Cumulative Distribution

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