Abstract
This paper establishes a multi-body dynamic simulation model of a 3.3 MW offshore WT with single pile foundation using aero-hydro-sevo-elastic approach in OpenFAST. This multi-body dynamic model is coupled with the wake model to establish a wind farm simulation model. It is verified using SCADA data from a real offshore wind farm. The simulation attempts to investigate the load response of multiple WTs under wake effects. The simulation shows that the wake generated by the upstream turbine will increase the vibration and bending deformation of the blade tip along the flapwise direction of the downstream turbine. The uneven distribution of inflow wind speed on the downstream turbine will increase the aerodynamic thrust of the blades. The yaw control of the upstream turbine help to increase the output power of the downstream turbine while it resulted in an increase of the vibrational amplitude and the bending moment of the blade root in the flapwise direction of the downstream turbine. The unbalanced force on the blades led to an increase of total load. The results obtained in this paper provide useful reference for load reduction and control optimization of an offshore wind farms.
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Acknowledgements
This is a research work funded by the National Key R&D Program of China (Grant No.2019YFE0104800), Major Research Plan of the National Natural Science Foundation of China (Grant No.92270101), Youth Fund of Jiangsu Natural Science Foundation of China (Grant No.BK20220920).
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Cen, S., Qiu, Y., Li, M., Feng, Y. (2024). Wind Turbine Dynamic Response in an Offshore Wind Farm with Wake Effects. In: Rui, X., Liu, C. (eds) Proceedings of the 2nd International Conference on Mechanical System Dynamics. ICMSD 2023. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-8048-2_12
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DOI: https://doi.org/10.1007/978-981-99-8048-2_12
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