Efforts by various researchers in recent years to design simple causal control laws that can be applied to WEC devices suggest that these controllers can yield similar levels of energy output as those of more complex non-causal controllers. However, most studies were established without adequately considering device and power conversion system constraints which are relevant design drivers from a cost and economic point of view. It is therefore imperative to understand the benefits of MPC compared to causal control from a performance and constraint handling perspective. In this paper, we compare linear MPC to a casual controller that incorporates constraint handling to benchmark its performance on a one DoF heaving point absorber in a range of wave conditions. Our analysis demonstrates that MPC provides significant performance advantages compared to an optimized causal controller, particularly if significant constraints on device motion and/or forces are imposed. We further demonstrate that distinct control performance regions can be established that correlate well with classical point absorber and volumetric limits of the wave energy conversion device.

中文翻译：

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燃点吸收器模型预测控制与最优因果控制的比较研究

近年来，各种研究人员努力设计可应用于 WEC 设备的简单因果控制定律，表明这些控制器可以产生与更复杂的非因果控制器相似的能量输出水平。然而，大多数研究的建立没有充分考虑设备和电源转换系统的限制，从成本和经济的角度来看，这些限制是相关的设计驱动因素。因此，必须从性能和约束处理的角度理解 MPC 与因果控制相比的好处。在本文中，我们将线性 MPC 与包含约束处理的临时控制器进行比较，以在一系列波浪条件下对单自由度垂荡点吸收器的性能进行基准测试。我们的分析表明，与优化的因果控制器相比，MPC 提供了显着的性能优势，尤其是在对设备运动和/或力施加显着约束的情况下。我们进一步证明，可以建立与经典点吸收器和波浪能转换装置的体积限制密切相关的不同控制性能区域。