Extreme Responses of An Integrated System with A Semi-Submersible Wind Turbine and Four Torus-Shaped Wave Energy Converters in Different Survival Modes  

作　　者：WANG Kai LI Yu-meng ONG Muk Chen WAN Ling LI Liang-bi CHENG Zhengshun 

机构地区：[1]School of Ocean Engineering and Technology,Sun Yat-sen University,&Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China [2]School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,China [3]Department of Mechanical and Structural Engineering and Materials Science,University of Stavanger,Stavanger 4036,Norway [4]Faculty of Maritime and Transportation,Ningbo University,Ningbo 315211,China [5]State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [6]SJTU Yazhou Bay Institute of Deepsea Science and Technology,Sanya 572024,China

出　　处：《China Ocean Engineering》2024年第5期877-892,共16页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52171289,42176210,and 52201330);the Guangdong Basic and Applied Basic Research Foundation,China(Grant No.2022B1515250005);Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)(Grant No.311023014).

摘　　要：Offshore wind power is a kind of important clean renewable energy and has attracted increasing attention due to the rapid consumption of non-renewable energy.To reduce the high cost of energy,a possible try is to utilize the combination of wind and wave energy considering their natural correlation.A combined concept consisting of a semi-submersible wind turbine and four torus-shaped wave energy converters was proposed and numerically studied under normal operating conditions.However,the dynamic behavior of the integrated system under extreme sea conditions has not been studied yet.In the present work,extreme responses of the integrated system under two different survival modes are evaluated.Fully coupled time-domain simulations with consideration of interactions between the semi-submersible wind turbine and the torus-shaped wave energy converters are performed to investigate dynamic responses of the integrated system,including mooring tensions,tower bending moments,end stop forces,and contact forces at the Column-Torus interface.It is found that the addition of four tori will reduce the mean motions of the yaw,pitch and surge.When the tori are locked at the still water line,the whole integrated system is more suitable for the survival modes.

关 键 词：combined wind and wave energy concept wave energy converter survival mode extreme response 

分 类 号：P752[天文地球—海洋科学] TM612[电气工程—电力系统及自动化] TM315