海上漂浮式风机平台的柔性效应研究进展
1. 中国电建集团贵州工程有限公司,, 贵州贵阳 550003
2. 清华大学, 深圳国际研究生院, 广东深圳 518055
| 摘 要： | 为了降低漂浮式风机（FOWT）的平准化成本（LCOE），FOWT朝着大型化方向发展。平台构件也随之变长、变柔，在外荷载作用下可能引发意外的柔性现象。另外，一些平台在设计时故意引入柔性构件，利用柔性效应提升平台的整体性能。这些柔性现象与通常将平台视为单刚体的假设不符。当前，平台的柔性效应已引起学者们的广泛关注，并开展了一系列的相关研究，但缺乏系统性综述。为此，本文先介绍了FOWT各主要构件从刚性体到柔性体建模的发展历程，阐明了在数值模拟中考虑平台柔性效应的必要性。随后，根据柔性效应的引入机制，将柔性平台分为被动柔性平台和主动柔性平台，并探讨了各类平台在考虑柔性效应后取得一些初步成果包括低估结构疲劳寿命、诱发共振放大平台运动响应等。最后，本文指出了当前柔性平台研究存在的不足，如在被动柔性平台方面，缺乏公认的准则来预测考虑平台柔性效应的必要性，节约计算资源；在设计主动柔性平台时，特征参数的选择和优化仍有较大的改进空间。 |
| 关 键 词： | 海上漂浮式风机; 平台柔性效应; 数值模拟; 水池试验 |
| DOI： | 10.57237/j.jest.2024.05.001 |
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收稿日期: 2024-09-20
接受日期: 2024-11-09
在线出版日期: 2024-12-05
Advances in Flexible Effect for Offshore Floating Wind Turbines Platform
1. PowerChina Guizhou Engineering Corporation Limited, Guiyang 550003, China
2. Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| Abstract: | To reduce the Levelized Cost of Energy (LCoE) for floating offshore wind turbines (FOWTs), there is a trend towards their development in larger scales. Platform components have also become longer and more flexible, which may lead to unexpected flexible phenomena under external loads. Furthermore, some platforms intentionally incorporate flexible components during design to leverage these effects for enhancing overall performance. These flexible phenomena contradict the traditional assumption of treating platforms as rigid bodies. Currently, the flexible effects of platforms have garnered widespread academic attention, leading to a series of related studies, yet a systematic review is lacking. To address this, this paper first introduces the evolution of modeling FOWT components from rigid bodies to flexible bodies, elucidating the necessity of considering platform flexibility effects in accurate modeling. Subsequently, based on the mechanism of introducing flexible effects, flexible platforms are categorized into passive and active types, with detailed discussions on the initial consensus reached in various platforms after considering flexible effects, such as underestimating structural fatigue life and inducing resonance to amplify platform motion responses. Finally, the paper highlights the shortcomings in current research on flexible platforms. For passive flexible platforms, there is a lack of recognized guidelines for predicting the necessity of considering platform flexibility effects to avoid wasting computational resources. In designing active flexible platforms, there is still significant room for improvement in selecting and optimizing characteristic parameters. |
| Keywords: | Floating Offshore Wind Turbine; Platform Flexibility Effects ; Numerical Simulation; Wave-basin Test |
基金
| 1. | 国家重点研发计划资助 (基金号: 2019YFB1600700) |
| 2. | 南京水利科学研究院中央级公益性科研院所基本科研业务费专项资金项目 (基金号: Y220002, Y220013) |
| 3. | 江苏省水利科技项目 (基金号: 2019009) |
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