Author:
Cayuela-Padilla Salvador,M’zoughi Fares,Garrido Izaskun,Garrido Aitor J.
Abstract
AbstractThe operational efficiency and lifespan of Floating Offshore Wind Turbines (FOWTs) are adversely impacted by the inherent platform motions and undesired vibrations induced by wind and wave loads. To effectively address these effects, the control of specific structural motions is of utmost importance, with platform pitch and yaw identified as the primary Degrees Of Freedom (DOF) that require attention. This study proposes a novel utilization of Oscillating Water Columns (OWCs) as a reliable and viable solution to mitigate platform pitch and yaw motions, thereby significantly enhancing the efficiency and reducing fatigue in wind turbines. This article aims to evaluate the impact resulting from integrating OWCs within each discrete floater of a Six-Floater platform. By considering different combinations of OWCs, a comprehensive analysis of the Response Amplitude Operators (RAOs) associated with pitch and yaw motions is presented. The primary objective is to identify the most efficient arrangements of OWCs and determine suitable combinations that effectively stabilize platform pitch and yaw motions. The empirical results substantiate that specific OWC configurations exhibit notable dampening effects on both pitch and yaw motions, particularly within specific wave frequency intervals. Consequently, it can be inferred that the integration and adequate operation of OWCs facilitate a substantial improvement in the stabilization of multi-floater platforms.
Publisher
Springer Science and Business Media LLC
Reference32 articles.
1. EU strategy on offshore renewable energy. https://energy.ec.europa.eu/topics/renewable-energy/eu-strategy-offshore-renewable-energy_en.
2. Statement by the President at the Leaders’ Summit. European Commission - European Commission https://ec.europa.eu/commission/presscorner/detail/en/STATEMENT_22_3162.
3. Minister, O. of the P. Ambitious offshore wind power initiative. Government.no https://www.regjeringen.no/en/aktuelt/ambitious-offshore-wind-power-initiative/id2912297/ (2022).
4. Karimian Aliabadi, S. & Rasekh, S. Effect of platform disturbance on the performance of offshore wind turbine under pitch control. Wind Energy 23, 1210–1230 (2020).
5. Yang, W. et al. Experimental research for stabilizing offshore floating wind turbines. Energies 12, 1947 (2019).