新型浮式风能-波浪能集成结构系统耦合动力分析  

COUPLED DYNAMIC ANALYSIS OF A NOVEL FLOATING WIND ENERGY AND WAVE ENERGY COMBINATION SYSTEM

作　　者：任年鑫 朱莹[1] 马哲 周孟然 Ren Nianxin;Zhu Ying;Ma Zhe;Zhou Mengran(Deepwater Engineering Research Center,Dalian University of Technology,Dalian 116024,China;State Key Laboratory of Coast and Offshore Engineering,Dalian University of Technology,Dalian 116024,China;Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]大连理工大学深海工程研究中心,大连116024 [2]大连理工大学海岸和近海工程国家重点实验室,大连116024 [3]北京交通大学结构风工程与城市风环境北京市重点实验室,北京100044

出　　处：《太阳能学报》2020年第5期159-165,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51709040,51761135011,51651902);中央高校基本科研业务费专项资金。

摘　　要：针对中国丰富深水风能和波浪能资源开发的未来需求,提出一种张力腿式风力机与垂荡式波浪能装置相集成的新型浮式结构系统。首先,选取NREL 5 MW风力机模型,基于叶素动量理论(blade element momentum,BEM)方法研究该集成系统风力机叶片的气动性能,基于势流理论方法模拟分析垂荡式波浪能装置与张力腿平台结构的水动力载荷,并考虑波浪能装置等效PTO(power take-off)系统的多体动力耦合效应,建立新型张力腿式风力机-垂荡式波浪能装置集成结构系统的空气动力与水动力耦合时域分析模型;其次,对比总结不同波浪能装置(PTO)设计参数对集成平台波浪能输出功率的影响规律;最后,重点研究典型最大运行发电海况下该新型浮式集成结构系统的结构动力响应特征及风能-波浪能输出功率特征,并验证其在极端海况下的安全性能。In the view of the future need of the exploitation of deep-water rich wind and wave energy resources in China,one novel tension leg platform(TLP)wind turbine(WT)and heave-type wave energy converter(WEC)combined system(TWWC)is proposed. Firstly,the NREL 5 MW wind turbine model has been selected as the research object. The aerodynamic performance is investigated based on the BEM method,and the hydrodynamic loads of both TLP platform and the WEC device is simulated based on the potential theory. The coupled aerodynamic and hydrodynamic numerical model of the TLP WT and heave-type WEC combined(TWWC)system has been established,with the consideration of the multibody dynamic coupling effect of the power-take off system(PTO)of the WEC device. Secondly,the effect of different PTO parameters of the WEC device on the performance of the wave energy output power has been clarified. Finally,the characteristics of both dynamic coupling responses and the wind-wave output power of the novel TWWC system have been mainly investigated under typical maximum operational sea cases,and the safety of the TWWC system under representative extreme sea case has been verified.

关 键 词：海上风力机 波浪能转化 动力分析 多体效应 新型浮式 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程]