Analysis of the short-term overproduction capability of variable speed wind turbines

Anca Daniela Hansen, Müfit Altin, Ioannis D. Margaris, Florin Iov, Germán C. Tarnowski

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    Abstract

    Emphasis in this article is on variable speed wind turbines (VSWTs) capability to provide short-term overproduction and better understanding of VSWTs’ mechanical and electrical limits to deliver such support. VSWTs’ short-term overproduction capability is of primary concern for the transmission system operators (TSOs) in the process of restoring critical situations during large frequency excursions in power systems with high wind power penetration.
    This study is conducted on a simplified generic model for VSWTs with full scale power converter (Type IV), which includes several adjustments and extensions of the Type IV standard wind turbine model proposed by the IEC Committee in IEC 61400-27-1. This modified standard model is able to account for dynamic features relevant for integrating active power ancillary services in wind power plants, such as frequency support capabilities.
    The performance of VSWTs during short-term overproduction is assessed and discussed by means of simulations for different wind speed levels, overproduction percentages and durations. The results show that the capability of VSWTs providing short-term overproduction to the grid strongly depends on the initial pre-overproduction conditions.
    © 2014 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    JournalRenewable Energy
    Volume68
    Pages (from-to)326-336
    ISSN0960-1481
    DOIs
    Publication statusPublished - 2014

    Keywords

    • Active power
    • Overproduction
    • Inertial response
    • Variable speed wind turbine
    • Standard model

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