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一种新型基于振荡水柱的六浮体漂浮式海上风力涡轮机平台的设计与稳定性分析

Design and stability analysis of a new six-floater oscillating water column-based floating offshore wind turbine platform.

作者信息

Cayuela-Padilla Salvador, M'zoughi Fares, Garrido Izaskun, Garrido Aitor J

机构信息

Automatic Control Group-ACG, Institute of Research and Development of Processes-IIDP, Department of Automatic Control and Systems Engineering, Faculty of Engineering of Bilbao, University of the Basque Country-UPV/EHU, Po Rafael Moreno no3, 48013, Bilbao, Spain.

出版信息

Sci Rep. 2024 Jul 13;14(1):16191. doi: 10.1038/s41598-024-65824-5.

DOI:10.1038/s41598-024-65824-5
PMID:39003283
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11246533/
Abstract

The 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.

摘要

浮式海上风力涡轮机（FOWT）的运行效率和使用寿命会受到固有平台运动以及风浪载荷引起的不良振动的不利影响。为了有效应对这些影响，控制特定的结构运动至关重要，其中平台纵摇和偏航被确定为需要关注的主要自由度（DOF）。本研究提出一种新颖的方法，利用振荡水柱（OWC）作为减轻平台纵摇和偏航运动的可靠且可行的解决方案，从而显著提高风力涡轮机的效率并减少疲劳。本文旨在评估在六浮体平台的每个离散浮体中集成OWC所产生的影响。通过考虑OWC的不同组合，对与纵摇和偏航运动相关的响应幅值算子（RAO）进行了全面分析。主要目标是确定OWC的最有效布置，并确定能有效稳定平台纵摇和偏航运动的合适组合。实证结果证实，特定的OWC配置对纵摇和偏航运动均表现出显著的阻尼效果，尤其是在特定的波浪频率区间内。因此，可以推断，OWC的集成和适当运行有助于大幅改善多浮体平台的稳定性。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c528/11246533/680d62de47f4/41598_2024_65824_Fig10_HTML.jpg
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