Wake Effects on A Hybrid Semi-Submersible Floating Wind Farm with Multiple Hub Heights  

作　　者：XU Xiao-sen GU Jia-yang LING Hong-jie YANG Pu-yi WANG Shuai-shuai XING Yi-han Oleg GAIDAI ZHANG Zhong-yu 

机构地区：[1]Marine Equipment and Technology Institute,Jiangsu University of Science and Technology,Zhenjiang 212100,China [2]Department of Mechanical and Civil Engineering,Florida Institute of Technology,Melbourne 32901,United States [3]Department of Marine Technology,Norwegian University of Science and Technology,Trondheim 7491,Norway [4]Department of Mechanical and Structural Engineering and Materials Science,University of Stavanger,Stavanger 4021,Norway [5]College of Engineering Science and Technology,Shanghai Ocean Engineering,Shanghai 201306,China

出　　处：《China Ocean Engineering》2023年第1期101-114,共14页中国海洋工程（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Grant Nos.51909109 and 52101314);the Natural Science Foundation of Jiangsu Province (Grant No.BK20190967)。

摘　　要：Wind farms generally consist of a single turbine installed with the same hub height. As the scale of turbines increases,wake interference between turbines becomes increasingly significant, especially for floating wind turbines(FWT).Some researchers find that wind farms with multiple hub heights could increase the annual energy production(AEP),while previous studies also indicate that wake meandering could increase fatigue loading. This study investigates the wake interaction within a hybrid floating wind farm with multiple hub heights. In this study, FAST.Farm is employed to simulate a hybrid wind farm which consists of four semi-submersible FWTs(5MW and 15MW) with two different hub heights. Three typical wind speeds(below-rated, rated, and over-rated) are considered in this paper to investigate the wake meandering effects on the dynamics of two FWTs. Damage equivalent loads(DEL) of the turbine critical components are computed and analyzed for several arrangements determined by the different spacing of the four turbines. The result shows that the dynamic wake meandering significantly affects downstream turbines’ global loadings and load effects. Differences in DEL show that blade-root flapwise bending moments and mooring fairlead tensions are sensitive to the spacing of the turbines.

关 键 词：hybrid floating wind farm wake meandering multiple hub heights floating wind turbine FAST.Farm fatigue 

分 类 号：P75[天文地球—海洋科学]