Modelling and Control Tank Testing Validation for Attenuator Type Wave Energy Converter - Part I: Experiment Setup and Control-Oriented Modelling
Modelling and Control Tank Testing Validation for Attenuator Type Wave Energy Converter - Part I: Experiment Setup and Control-Oriented Modelling
复制标题
DOI：
10.1109/tste.2023.3246172
复制
发表时间：
2023-07
影响因子：
8.8
通讯作者：
Zhijing Liao;Tao Sun;Mustafa Al-ani;L. Jordan;Guang Li;Zhenchun Wang;M. Belmont;Christopher Edwards
中科院分区：
文献类型：
--
作者：
Zhijing Liao;Tao Sun;Mustafa Al-ani;L. Jordan;Guang Li;Zhenchun Wang;M. Belmont;Christopher Edwards
在苏格兰波浪能源控制项目的支持下，在爱丁堡的FloWave水箱设施上进行了水箱测试实验，证明了先进的非因果最优控制策略可以显着提高衰减器型波浪能转换器（WEC）的比例物理模型的能量输出。研究结果发表在三篇论文中，总结了线性非因果最优控制（LNOC）和模型预测控制（MPC）在规则波和不规则波中的试验设置、动态建模和验证。与优化调谐的被动阻尼控制相比，LNOC和MPC都可以显著提高能量输出，提高10%至460%，使用低到中等量级的不规则波，峰值周期从$1.7\,\ mathm {s}$到$2.8\,\ mathm {s}$为$1/20^{\rm th}$，如第二部分和第三部分论文所示。这些控制器在实际海况中通常遇到的扩频波和侧波中也表现出鲁棒性。此外，控制技术可以转移到其他类型的WECs。该结果为海上试验和包括发电阶段和功率调节阶段的全控制系统验证铺平了道路。本文第一部分将重点介绍坦克试验装置、被动阻尼控制实验结果以及面向控制的WEC模型。两个状态空间模型分别来自流体动力模型和实验数据的系统识别，验证和比较用于控制器设计，将在第二部分和第三部分中提出。
Advanced non-causal optimal control strategies have been demonstrated to significantly improve the energy output of a scale physical model of an attenuator type wave energy converter (WEC) by tank testing experiments using FloWave tank facilities in Edinburgh supported by Wave Energy Scotland's control project. The results are reported in a series of three papers, summarizing the tank testing setup, dynamic modelling, and validation of both linear non-causal optimal control (LNOC) and model predictive control (MPC) in regular and irregular waves. Compared with an optimally tuned passive damping control, both LNOC and MPC can significantly improve the energy output, by between 10% to 460%, using irregular waves with low to medium magnitude and peak periods ranging from $1.7\,\mathrm{s}$ to $2.8\,\mathrm{s}$ at $1/20^{\rm th}$ scale, as shown in Part II and Part III papers. These controllers also show robust performance in spread waves and side waves which are normally encountered in real sea conditions. Furthermore, the control technologies can be transferred to other types of WECs. The results pave the way for the sea trial testing and full control system validation involving the electricity generation stage and power conditioning stage. This Part I paper will focus on the tank testing setup, the passive damping control experimental results, and the control-oriented models for the WEC. Two state-space models derived respectively from the hydrodynamic model and system identification of experimental data, are validated and compared for use on the controller designs to be presented in Part II and Part III.