An optimal interval Type-2 Fuzzy logic controller is proposed for maximum power capture from point absorbers. First, based on an introduced point absorber, a model-based feedback-simplifier is proposed to reduce the complexity of the nonlinear part of the model. Then, two interval Type-2 Fuzzy systems are designed for finding the optimal values of damping and stiffness coefficients so that the maximum power absorption is realised. A black hole optimisation algorithm is then introduced to find the optimal values of the parameters of the Fuzzy system. Finally, the high performance of the proposed scheme is confirmed using simulations. The contributions of this paper are: (1) designing a model-based feedback simplifier for point absorbers, (2) introducing a state space of the final closed-loop system, (3) designing an interval Type-2 Fuzzy controller for the final system, (4) training the Fuzzy controller parameters using a black hole optimisation algorithm.

提出了一种最佳区间 2 型模糊逻辑控制器，用于从点吸收器捕获最大功率。首先，在引入点吸收器的基础上，提出了一种基于模型的反馈简化器，以降低模型非线性部分的复杂性。然后，设计了两个区间 Type-2 模糊系统，用于寻找阻尼系数和刚度系数的最佳值，从而实现最大功率吸收。然后引入黑洞优化算法来寻找模糊系统参数的最优值。最后，通过仿真验证了所提方案的高性能。本文的贡献是：（1）为点吸收器设计基于模型的反馈简化器，（2）引入最终闭环系统的状态空间，