85423 20200716101548.0 doi 10.1088/1742-6596/1356/1/012043 sideral 114478 ART-2019-114478 eng (orcid)0000-0002-3698-6284 González, E. On the effects of environmental conditions on wind turbine performance: an offshore case study 2019 Access copy available to the general public Unrestricted Monitoring wind turbine (WT) performance offers a means of identifying abnormal operation, but only if natural disturbances of the operating regime change can be excluded. WT performance monitoring usually relies on the analysis of operational power curves, generally based on data from the supervision control and data acquisition system. However, these curves do not reflect the source of variability, negatively affecting the capabilities for detecting WT abnormal performance. This work aims at understanding and quantifying changes in WT performance variability due to different environmental conditions during normal and wake-free operating conditions, based on an offshore case study. The magnitude of performance fluctuations is highly influenced by environmental conditions, being higher during high turbulence intensity and low wind shear conditions. The Taylor law, with small time windows, is suitable to describe them for low-mid winds in the absence of dedicated wind measurements, often not permanently available offshore, and could potentially result in more effective performance monitoring solutions. Nevertheless, the heteroskedastic nature of the power deviations negatively affects fitting possibilities. The results support the importance of using low data aggregation periods to understand the dynamics of WT performance. info:eu-repo/grantAgreement/EC/H2020/642108/EU/Advanced Wind Energy Systems Operation and Maintenance Expertise/AWESOME This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 642108-AWESOME info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 0.227 2019 Physics and Astronomy (miscellaneous) 2019 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Valldecabres, L. Seyr, H. (orcid)0000-0003-2360-0845 Melero, J. J. Universidad de Zaragoza 5009 535 Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Ingeniería Eléctrica 1356 1-13, 1 (2019), 012043 J. Phys.: Conf. Ser. Journal of Physics: Conference Series 1742-6588 3683729 http://zaguan.unizar.es/record/85423/files/texto_completo.pdf Versión publicada 32466 http://zaguan.unizar.es/record/85423/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:85423 articulos driver 2020-07-16-09:44:26 ARTICLE