Effect of different parameters on hydrodynamic characteristics of double-floating-body wave energy converter
JI Renwei1, SHENG Qihu1*, WANG Shuqi2, ZHANG Yuquan3, ZHANG Liang1
1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Helongjiang 150001, China; 2. College of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212001, China; 3. College of Energy and Electrical Engineering, Hohai University, Nanjing, Jiangsu 211100, China
Abstract：Taking the double-floating-body wave energy converter as the research object, a set of calculation method based on ANSYS-AQWA software was proposed to simulate the oscillating motion of double-floating-body wave energy converter. Fortran′s secondary development was used to consider the influence of linear PTO damping. The numerical results of the motion were compared with the experimental results of NREL(National Renewable Energy Laboratory). The effects of different parameters(wave parameters, power generation device parameters and PTO parameters)on the hydrodynamic characteristics of the double-floating-body wave energy converter were studied in detail. The results show that in terms of wave parameters, there is an optimal wave period, which makes the generating power of wave energy converter reach the maximum, and the increase of wave height is conducive to the capture of wave energy. In terms of power device parameters, there are optimal values for the draft and diameter of upper buoy and the diameter of lower buoy damping plate, which makes the energy capture factor reach the maximum. In terms of PTO parameters, there is an optimal damping coefficient, and the relative reference value in engineering practice is given. The research results will provide valuable reference for the future research and design of the double-floating-body wave energy converter.
纪仁玮,盛其虎*,王树齐,张玉全,张亮. 不同参数对双浮体波能装置水动力特性的影响[J]. 排灌机械工程学报, 2020, 38(6): 589-595.
JI Renwei,SHENG Qihu*,WANG Shuqi,ZHANG Yuquan,ZHANG Liang. Effect of different parameters on hydrodynamic characteristics of double-floating-body wave energy converter. Journal of Drainage and Irrigation Machinery Engin, 2020, 38(6): 589-595.
