中国海洋大学学报（自然科学版）2025，Vol.55Issue(5)：157-166,10.DOI:10.16441/j.cnki.hdxb.20230016
考虑物理约束的振荡浮子式波浪能转换装置优化获能控制
Energy Optimization Control of Wave Energy Converter Considering Physical Constraints
摘要
Abstract
To solve the problem improving the energy absorption efficiency of the oscillating buoy wave energy converter(OBWEC)under the premise of guaranteeing device safety,considering the physical constraints of both the buoy motion and the control force of power take-off,this paper proposes a two-level control framework to implement the high efficiency of energy absorption of OBWEC.In the level of reference trajectory planning,the Fourier pseudo-spectral approach is utilized to compute the refer-ence trajectory corresponding to the maximum energy absorption,which satisfies the displacement and control force constraints.In the level of trajectory tracking,sliding mode control(SMC)is used to make OBWEC track the reference trajectory.Besides,the stability of the tracking error system is proved by the Lyapunov theory.The simulation results show that the reference trajectory and control force satisfy the physical constraints,and the tracking error can converge to 0 in a finite time.Compared with the ideal absorbed energy without considering physical limitations,the ratio of energy absorption of OBWEC reaches 91％,which verifies the feasibility and effectiveness of the proposed approach.关键词
振荡浮子式波浪能转换装置/优化获能控制/傅里叶拟谱方法/轨迹跟踪控制/滑模控制Key words
oscillating buoy wave energy converters/energy optimization control/Fourier pseudo-spectral method/trajectory tracking control/sliding mode control分类
海洋科学引用本文复制引用
包鑫宇,黎明,陈震,宋承林..考虑物理约束的振荡浮子式波浪能转换装置优化获能控制[J].中国海洋大学学报（自然科学版）,2025,55(5):157-166,10.基金项目
山东省重点研究发展计划项目(2019JZZY010902) （2019JZZY010902）
国家重点研究发展计划项目(2018YFB1501904)资助Supported by the Key Research and Development Program of Shandong Province(2019JZZY010902) （2018YFB1501904）
the National Key Research and Development Program of China(2018YFB1501904) （2018YFB1501904）
