RT info:eu-repo/semantics/article T1 Maintenance models applied to wind turbines. A comprehensive overview A1 Merizalde Zamora, Yury Humberto A1 Hernández Callejo, Luis A1 Duque Pérez, Óscar A1 Alonso Gómez, Víctor K1 Wind turbines K1 Turbinas eólicas K1 Mathematical models K1 Modelos matemáticos AB Wind power generation has been the fastest-growing energy alternative in recent years, however, it still has to compete with cheaper fossil energy sources. This is one of the motivations to constantly improve the efficiency of wind turbines and develop new Operation and Maintenance (O&M) methodologies. The decisions regarding O&M are based on different types of models, which cover a wide range of scenarios and variables and share the same goal, which is to minimize the Cost of Energy (COE) and maximize the profitability of a wind farm (WF). In this context, this review aims to identify and classify, from a comprehensive perspective, the different types of models used at the strategic, tactical, and operational decision levels of wind turbine maintenance, emphasizing mathematical models (MatMs). The investigation allows the conclusion that even though the evolution of the models and methodologies is ongoing, decision making in all the areas of the wind industry is currently based on artificial intelligence and machine learning models. PB MDPI SN 1996-1073 YR 2019 FD 2019 LK https://uvadoc.uva.es/handle/10324/56475 UL https://uvadoc.uva.es/handle/10324/56475 LA eng NO Energies, 2019, vol. 12, n. 2, 225 NO Producción Científica DS UVaDOC RD 01-jun-2024