摘要
该文提出一种基于智能海洋捕食者算法的模型预测控制策略,实现了波浪能转换装置的动态最大能量捕获。提出的模型预测控制策略利用海洋捕食者算法来获取最优控制力,并采用非线性限制来控制功率的单向流动。通过相应的对比分析验证了海洋捕食者算法的优化准确性和快速收敛性。该方法还利用控制域来处理最优控制变量以便在算法的计算负担和优化准确度之间进行平衡。所提出的方法证明在处理多维的波浪能转换系统方面,特别是系统的非凸和非线性限制问题,具有较好的利用价值。仿真与实验结果证明提出的方法能较好地提高波浪能转换装置的输出功率,并满足典型海域工况下的实时需求。
A novel intelligent model predictive control(MPC)based on the marine predators algorithm is proposed in this paper to dynamically achieve the output power maximization of the wave energy converter(WEC).In the MPC for WEC,the MPA is applied to obtain the optimal control force.The nonlinear restriction of unidirectional power flow is considered in the proposed method.The excellent optimization accuracy and fast convergence ability of MPA are verified through corresponding comparisons.In addition,the control horizon is adopted to handle optimal control variables so that the computational burden and optimization accuracy of the method can be balanced.The proposed method is beneficial to the multi-dimensional WEC system,especially for solving its nonconvex problem and nonlinear constraints.Simulation and experimental results show that the proposed method can improve the output power of the WEC and satisfy the real-time requirement in typical sea conditions.
作者
方红伟
魏秀娜
FANG Hongwei;WEI Xiuna(School of Electrical and Information Engineering,Tianjin University,Nankai District,Tianjin 300072,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2024年第4期1468-1480,I0018,共14页
Proceedings of the CSEE
基金
Project Supported by National Natural Science Foundation of China(51877148)
National Key R&D Program of China(2023YFE0198100)。
关键词
海洋捕食者算法
模型预测控制
单向功率流动限制
波浪能转换
marine predators algorithm
model predictive control
unidirectional power flow limitation
wave energy conversion