Data-based modelling of arrays of wave energy systems: Experimental tests, models, and validation

作     者：Pasta, Edoardo Papini, Guglielmo Pena-Sanchez, Yerai Mosquera, Facundo D. Ferri, Francesco Faedo, Nicolas 

作者机构：Politecn Torino Dept Mech & Aerosp Engn DIMEAS Marine Offshore Renewable Energy Lab Corso Duca Degli Abruzzi 24 I-10129 Turin TO Italy Mondragon Univ Fluid Mech Dept Loramendi 4 Arrasate Mondragon 20500 Spain Univ Nacl La Plata Inst Invest Elect Control & Proc Senales Calle 48 & 116CC 91 RA-1900 La Plata Buenos Aires Argentina Aalborg Univ Dept Built Environm Ocean & Coastal Engn Res Grp Thomas Manns Vej 23 1-330 DK-9220 Aalborg Denmark 

出 版 物：《CONTROL ENGINEERING PRACTICE》 (控制工程实践)

年 卷 期：2024年第148卷

核心收录：

学科分类：0711[理学-系统科学] 0808[工学-电气工程] 07[理学] 08[工学] 070105[理学-运筹学与控制论] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 0701[理学-数学] 071101[理学-系统理论] 

基　　金：European Union [101024372, 101034297] COST Action [17105-WECANet] 

主　　题：Wave energy Wave energy arrays System identification Data-based modelling Control oriented models Experimental validation 

摘      要：One of the key steps towards economic feasibility of wave energy conversion technology concerns scaling up to farms of multiple devices, in the attempt to reduce installation costs by sharing infrastructure, and a consequent drop in levelised cost of energy. Moreover, whenever wave energy systems are deployed in proximity (in so-called arrays ), the exploitation of the hydrodynamic interactions between single devices is fully enabled, potentially increasing the final energy outcome. To achieve this in real (operational) time, the employed energy-maximising control strategies require control-oriented array models, able to efficiently describe the dynamics of these interconnected systems in a representative fashion. This can be, nonetheless, a difficult task when considering first principles alone, under small motion assumptions, for modelling purposes. Recognising the uncertainty associated to array numerical models obtained from the linearisation of simplified system equations around their equilibria, this paper presents models of several array configurations identified following a frequency domain approach on the basis of experimental data. Tailored tests on laboratory-scale devices have been designed and conducted in the Aalborg University (Denmark) wave tank facility, with the purpose of performing representative system identification of the wave energy systems arrays. The obtained models are validated on different representative sea states configurations, in controlled and uncontrolled motion operational conditions. The validation results are fully discussed and analysed in terms of standard error measures and time lag, while the obtained models are made freely accessible via a linked repository (named OCEAN ), in the attempt to openly provide validated models for different array configurations.