Power Absorption of A Two-Body Heaving Wave Energy Converter Considering Different Control and Power Take-off Systems

作     者：DONG Xiao-chen GAO Zhen LI De-min HUANG Shu-ting SHI Hong-da DONG Xiao-chen;GAO Zhen;LI De-min;HUANG Shu-ting;SHI Hong-da

作者机构：Department of Ocean EngineeringCollege of EngineeringOcean University of ChinaQingdao 266100China Department of Marine Technology and Centre for Autonomous Marine Operations and Systems(AMOS)Norwegian University of Science and Technology(NTNU)Trondheim 7491Norway Shandong Provincial Key Laboratory of Ocean EngineeringOcean University of ChinaQingdao 266100China Qingdao Municipal Key Laboratory of Ocean Renewable EnergyOcean University of ChinaQingdao 266100China Institute of Marine Science and TechnologyShandong UniversityQingdao 266237China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2022年第36卷第1期

页      面：15-27页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0814[工学-土木工程] 

基　　金：financially supported by the National Key R&D Program of China (Grant No. 2018YFB1501904) the Shandong Provincial Key R&D Program (Grant No. 2019JZZY010902) the National Natural Science Foundation of China (Grant No. 52071303) the Joint Project of NSFC-SD (Grant No. U1906228) the Taishan Scholars Program of Shandong Province (Grant No. ts20190914) 

主　　题：two-body heaving wave energy converter power capture function power take-off 

摘      要：This study proposed a wave power system with two coaxial floating cylinders of different diameters and ***’s conceptual design has been adopted in the wave power *** this study,a basic analysis of the wave energy extraction by the relative motion between two floats is *** maximum power absorption was studied theoretically under regular wave conditions,and the effects of both linear and constant damping forces on the power take-off(PTO)were investigated.A set of dynamic equations describing the floats’displacement under regular waves and different PTOs are established.A time-domain numerical model is developed,considering the PTO parameter and viscous damping,and the optimal PTO damping and output power are *** the analysis of estimating the maximum power absorption,a new estimation method called Power Capture Function(PCF)is proposed and constructed,which can be used to predict the power capture under both linear and constant PTO *** on this,energy extraction is analyzed and ***,the performance characteristics of the two-body power system are concluded.