Stability enhancement of DFIG wind turbine using LQR pitch control over rated wind speed

Kazi Shariful Islam, Weixiang Shen, Apel Mahmud, Md Ayaz Chowdhury, Jingxin Zhang

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

    7 Citations (Scopus)


    A novel pitch control design method is proposed for the doubly fed induction generator (DFIG) wind turbine (WT) using linear quadratic regulator (LQR). A seven-order model represents the DFIG WT which is linearized by truncated Taylor series expansion. A systematic approach is adopted to determine the weighting matrices in LQR design for the optimal solution. Simulations have been carried out to compare the performance of the proposed LQR pitch control method against a PI pitch control for small and large disturbances. It is shown that the proposed control method enhances low-voltage ride-through capability and improves system damping under large disturbances.

    Original languageEnglish
    Title of host publicationProceedings of the 2016 IEEE 11th Conference on Industrial Electronics and Applications, ICIEA 2016
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    Number of pages6
    ISBN (Electronic)9781509026050
    Publication statusPublished - 19 Oct 2016
    EventIEEE Conference on Industrial Electronics and Applications 2016 - Hefei Swan Lake Hotel, Hefei Anhui, China
    Duration: 5 Jun 20167 Jun 2016
    Conference number: 11th (Proceedings)


    ConferenceIEEE Conference on Industrial Electronics and Applications 2016
    Abbreviated titleICIEA 2016
    CityHefei Anhui
    Internet address


    • DFIG Control
    • DFIG dynamics
    • pitch controller
    • transient stability
    • wind farm modeling
    • wind power

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