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- Title
Remaining Useful Life Estimation Framework for the Main Bearing of Wind Turbines Operating in Real Time.
- Authors
Vieira, Januário Leal de Moraes; Farias, Felipe Costa; Ochoa, Alvaro Antonio Villa; de Menezes, Frederico Duarte; Costa, Alexandre Carlos Araújo da; da Costa, José Ângelo Peixoto; de Novaes Pires Leite, Gustavo; Vilela, Olga de Castro; de Souza, Marrison Gabriel Guedes; Michima, Paula Suemy Arruda
- Abstract
The prognosis of wind turbine failures in real operating conditions is a significant gap in the academic literature and is essential for achieving viable performance parameters for the operation and maintenance of these machines, especially those located offshore. This paper presents a framework for estimating the remaining useful life (RUL) of the main bearing using regression models fed operational data (temperature, wind speed, and the active power of the network) collected by a supervisory control and data acquisition (SCADA) system. The framework begins with a careful data filtering process, followed by creating a degradation profile based on identifying the behavior of temperature time series. It also uses a cross-validation strategy to mitigate data scarcity and increase model robustness by combining subsets of data from different available turbines. Support vector, gradient boosting, random forest, and extra trees models were created, which, in the tests, showed an average of 20 days in estimating the remaining useful life and presented mean absolute error (MAE) values of 0.047 and mean squared errors (MSE) of 0.012. As its main contributions, this work proposes (i) a robust and effective regression modeling method for estimating RUL based on temperature and (ii) an approach for dealing with a lack of data, a common problem in wind turbine operation. The results demonstrate the potential of using these forecasts to support the decision making of the teams responsible for operating and maintaining wind farms.
- Subjects
REMAINING useful life; BEARINGS (Machinery); SUPERVISORY control systems; WIND turbines; REGRESSION trees; REGRESSION analysis; RANDOM forest algorithms; WIND speed
- Publication
Energies (19961073), 2024, Vol 17, Issue 6, p1430
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en17061430