A real-time hybrid simulation framework for floating offshore wind turbines
A real-time hybrid simulation framework for floating offshore wind turbines
复制标题
浮动式海上风力发电机的实时混合仿真框架
DOI：
10.1016/j.oceaneng.2022.112529
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发表时间：
2022
影响因子：
5
通讯作者：
V. Jahangiri
中科院分区：
文献类型：
--
作者：
Chao Sun;Wei Song;V. Jahangiri
海上风电场正在全球范围内快速发展，其中浮动海上风力涡轮机（FOWTs）已经吸引了越来越多的研究和工业投资。为了实现安全的应用，必须建立数值模型并进行实验室测试，以深入了解组合式风浪荷载下fowt的复杂结构行为。然而，由于雷诺数-弗鲁德比例不兼容，模型测试变得复杂。本研究提出了一种实时混合仿真框架来研究风浪荷载作用下fowt的结构性能。在该框架中，对叶片（机舱）和塔架进行了数值模拟，并通过实验室中的驱动系统对浮动平台进行了实时测试。数值子结构和物理子结构在塔-浮子界面上通信。国家可再生能源实验室以1:50的比例模拟了5兆瓦的桅杆式FOWT，以评估拟议框架的可行性。通过灵敏度分析对时延和噪声引起的误差进行量化。结果表明，传感器和执行器的时延比噪声对RTHS框架性能的影响更大。总的来说，RTHS框架中的响应相对误差很小，在延迟、噪声和代表性风浪条件下是可以容忍的。本研究提出的框架和敏感性分析为RTHS技术在类似海洋结构中的未来实施和进一步发展提供了重要信息。
Offshore wind farms are experiencing rapid growth globally where floating offshore wind turbines (FOWTs) have been attracting increasing research and industry investment. To achieve secure application, it is essential to develop numerical models and conduct laboratory testing to develop an in-depth understanding of the complex structural behavior of FOWTs under combined wind-wave loading. However, model testing of FOWTs is complicated by the Reynolds-Froude scaling incompatibilities. This research proposes a real-time hybrid simulation (RTHS) framework to study the structural performance of FOWTs under wind-wave loading. In the framework, the blades (nacelle) and tower are numerically modeled, and the floating platform is tested in real-time via an actuation system in a laboratory. The numerical and physical substructures communicate at the tower-floater interface. The National Renewable Energy Lab 5 MW spar-type FOWT on a scale of 1:50 is simulated to evaluate the feasibility of the proposed framework. Errors caused by delays and noises are quantified through sensitivity analyses. Results show that the delays in the sensors and actuators influence the performance of the RTHS framework more significantly than the noises. Overall, the response relative errors in the RTHS framework are small and tolerable under delays, noises, and representative wind-wave conditions. The proposed framework and sensitivity analyses presented in this study provide important information for future implementation and further development of the RTHS technology for similar marine structures.