新型多立柱基础的15 MW漂浮式风电机组动态响应研究

孟慧雯; 刘永前; 田德; 龙凯; 吴晓璇; 孙科

doi:10.19912/j.0254-0096.tynxb.2024-1371

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 662-670. DOI: 10.19912/j.0254-0096.tynxb.2024-1371

新型多立柱基础的15 MW漂浮式风电机组动态响应研究

孟慧雯¹, 刘永前¹, 田德¹, 龙凯¹, 吴晓璇¹, 孙科^1,2

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DYNAMIC RESPONSE STUDY OF 15 MW FLOATING WIND TURBINE WITH NOVEL MUTI-COLUMN FOUNDATION

Meng Huiwen¹, Liu Yongqian¹, Tian De¹, Long Kai¹, Wu Xiaoxuan¹, Sun Ke^1,2

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摘要

漂浮式风电机组（FOWT）的超大型化发展使其在较小的环境载荷下产生较大的运动,基于此,提出一种适用于深远海的15 MW FOWT新型小直径多侧立柱半潜式基础（MRD）。基于ANSYS AQWA进行频域水动力计算,同时结合openFAST建立全耦合数值模型并进行动态响应分析,在额定风况下与UMaine VolturnUS-S（UMaine）参考基础进行对比。自由衰减测试证明：MRD基础在垂荡和纵摇方向的固有频率较小,产生结构共振的可能性降低;频域分析结果指出,与UMaine相比,MRD纵荡波激励减小,垂荡和纵摇附加质量和辐射阻尼增大,且纵荡、垂荡和纵摇响应幅度算子（RAOs）均减小;全耦合动态响应分析结果表明：MRD纵荡和垂荡均优于UMaine,且输出功率最大值增大。研究结果可为深远海超大型FOWT半潜式基础的概念设计提供理论参考。

Abstract

The ultra large-scale development of floating offshore wind turbines （FOWTs） enables them to generate greater motion under smaller environmental loads. Based on this, a novel 15 MW FOWT multi-column with reduced diameter semi-submersible foundation （MRD） suitable for deep sea applications is proposed. Conduct frequency-domain hydrodynamic calculations based on AQWA, and establish a fully-coupled numerical model with open FAST for time-domain simulation analysis. Assess its performance in comparison to with the UMaine VolturnUS-S （UMaine） reference foundation under rated wind conditions. The free decay test proves that the MRD foundation moderates the natural frequencies in the heave and pitch directions, and minimizes the risk of structural resonance. The frequency-domain analysis indicates that the wave excitation in the heave direction of MRD decreases, while the additional mass and radiation damping in the heave and pitch directions increase, and the RAOs in the surge, heave, and pitch directions shrink. The results of fully-coupled time-domain analysis show that MRD has better surge and heave oscillations than that of UMaine, and the maximum output power rises. The research results can provide theoretical reference for the conceptual design of semi-submersible foundations for deep-sea ultra-large FOWTs.

导出引用

孟慧雯, 刘永前, 田德, 龙凯, 吴晓璇, 孙科. 新型多立柱基础的15 MW漂浮式风电机组动态响应研究[J]. 太阳能学报. 2025, 46(12): 662-670 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1371

Meng Huiwen, Liu Yongqian, Tian De, Long Kai, Wu Xiaoxuan, Sun Ke. DYNAMIC RESPONSE STUDY OF 15 MW FLOATING WIND TURBINE WITH NOVEL MUTI-COLUMN FOUNDATION[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 662-670 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1371

中图分类号： TM614

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