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

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 (ICCA) - Edinburgh, United Kingdom
Duration: 16 Jul 201919 Jul 2019
Conference number: 15
http://ieee-icca.org

Conference

Conference15th International Conference on Control and Automation (ICCA)
Number15
CountryUnited Kingdom
CityEdinburgh
Period16/07/201919/07/2019
Internet address
SeriesIEEE International Conference on Control and Automation
ISSN1948-3457

Cite this

Lio, A. W. H., Galinos, C., & Meseguer Urban, A. (2019). Analysis and design of gain-scheduling blade-pitch controllers for wind turbine down-regulation*. In Proceedings of the 15th International Conference on Control and Automation (ICCA) (pp. 708-712). IEEE. IEEE International Conference on Control and Automation https://doi.org/10.1109/ICCA.2019.8899611