Machine learning-aided assessment of wind turbine energy losses due to blade leading edge damage

Anna Cavazzini, Edmondo Minisci, M. Sergio Campobasso

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

Estimating reliably and rapidly the losses of wind turbine annual energy production due to blade surface damage is essential for optimizing maintenance planning and, in the frequent case of leading edge erosion, assessing the need for protective coatings. These requirements prompted the development of the prototype system presented herein, using machine learning, wind turbine engineering codes and computational fluid dynamics to estimate wind turbine annual energy production losses due to blade leading edge damage. The power curve of a turbine with nominal or damaged blade surfaces is determined respectively with the open-source FAST and AeroDyn codes of the National Renewable Energy Laboratory, both using the blade element momentum theory for turbine aerodynamics. The loss prediction system is designed to map a given three-dimensional geometry of a damaged blade onto a damaged airfoil database, which, in this study, consists of 2700+ airfoil geometries, each analyzed with Navier-Stokes computational fluid dynamics over the working range of angles of attack. To avoid the need for lengthy aerodynamic analyses to assess losses due to damages monitored during turbine operation, the airfoil force data of a damaged turbine required by AeroDyn are rapidly obtained using a machine learning method trained using the pre-existing airfoil database. Presented results focus on the analysis of a utility-scale offshore wind turbine and demonstrate that realistic estimates of the annual energy production loss due to leading edge surface damage can be obtained in just a few seconds using a standard desktop computer, highlighting the viability and the industrial impact of this new technology for wind farm energy losses due to blade erosion.

Original languageEnglish
Title of host publicationASME 2019 2nd International Offshore Wind Technical Conference
Place of Publication[S.I.]
Number of pages14
DOIs
Publication statusPublished - 13 Dec 2019
EventASME 2019 2nd International Offshore Wind Technical Conference - St. Julian’s, Malta, Malta
Duration: 3 Nov 20196 Nov 2019

Conference

ConferenceASME 2019 2nd International Offshore Wind Technical Conference
CountryMalta
Period3/11/196/11/19

Keywords

  • blades
  • energy dissipation
  • wind turbines
  • blade damage
  • erosion
  • computational fluid dynamics
  • renewable energy
  • wind farms

Fingerprint Dive into the research topics of 'Machine learning-aided assessment of wind turbine energy losses due to blade leading edge damage'. Together they form a unique fingerprint.

  • Equipment

  • Research Output

    • 1 Citations
    • 1 Article

    Rapid estimate of wind turbine energy loss due to blade leading edge delamination using artificial neural networks

    Campobasso, M. S., Cavazzini, A. & Minisci, E., 14 May 2020, In : Journal of Turbomachinery. 23 p.

    Research output: Contribution to journalArticle

  • Cite this

    Cavazzini, A., Minisci, E., & Campobasso, M. S. (2019). Machine learning-aided assessment of wind turbine energy losses due to blade leading edge damage. In ASME 2019 2nd International Offshore Wind Technical Conference [IOWTC2019-7578]. https://doi.org/10.1115/IOWTC2019-7578