Impact Assessment of Dynamic Loading Induced by the Provision of Frequency Containment Reserve on the Main Bearing Lifetime of a Wind Turbine

Narender Singh (), Dibakor Boruah, Jeroen D. M. De Kooning, Wim De Waele and Lieven Vandevelde
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Narender Singh: Department of Electromechanical, Systems & Metal Engineering, Faculty of Engineering & Architecture, Ghent University, Tech Lane Ghent Science Park—Campus A, Technologiepark-Zwijnaarde 131, B-9052 Ghent, Belgium
Dibakor Boruah: Department of Electromechanical, Systems & Metal Engineering, Faculty of Engineering & Architecture, Ghent University, Tech Lane Ghent Science Park—Campus A, Technologiepark-Zwijnaarde 131, B-9052 Ghent, Belgium
Jeroen D. M. De Kooning: Department of Electromechanical, Systems & Metal Engineering, Faculty of Engineering & Architecture, Ghent University, Tech Lane Ghent Science Park—Campus A, Technologiepark-Zwijnaarde 131, B-9052 Ghent, Belgium
Wim De Waele: Department of Electromechanical, Systems & Metal Engineering, Faculty of Engineering & Architecture, Ghent University, Tech Lane Ghent Science Park—Campus A, Technologiepark-Zwijnaarde 131, B-9052 Ghent, Belgium
Lieven Vandevelde: Department of Electromechanical, Systems & Metal Engineering, Faculty of Engineering & Architecture, Ghent University, Tech Lane Ghent Science Park—Campus A, Technologiepark-Zwijnaarde 131, B-9052 Ghent, Belgium

Energies, 2023, vol. 16, issue 6, 1-14

Abstract: The components of an operational wind turbine are continuously impacted by both static and dynamic loads. Regular inspections and maintenance are required to keep these components healthy. The main bearing of a wind turbine is one such component that experiences heavy loading forces during operation. These forces depend on various parameters such as wind speed, operating regime and control actions. When a wind turbine provides frequency containment reserve (FCR) to support the grid frequency, the forces acting upon the main bearing are also expected to exhibit more dynamic variations. These forces have a direct impact on the lifetime of the main bearing. With an increasing trend of wind turbines participating in the frequency ancillary services market, an analysis of these dynamic forces becomes necessary. To this end, this paper assesses the effect of FCR-based control on the main bearing lifetime of the wind turbine. Firstly, a control algorithm is implemented such that the output power of the wind turbine is regulated as a function of grid frequency and the amount of FCR. Simulations are performed for a range of FCR to study the changing behaviour of dynamical forces acting on the main bearing with respect to the amount of FCR provided. Then, based on the outputs from these simulations and using 2 years of LiDAR wind data, the lifetime of the main bearing of the wind turbine is calculated and compared for each of the cases. Finally, based on the results obtained from this study, the impact of FCR provision on the main bearing lifetime is quantified and recommendations are made, that could be taken into account in the operation strategy of a wind farm.

Keywords: frequency containment reserve; structural loading; wind energy; wind turbine control; wind turbine main bearing (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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