Faedo, Nicolás and Peña-Sanchez, Yerai and Garcia-Violini, Demián and Ferri, Francesco and Mattiazzo, Giuliana and Ringwood, John
(2023)
Experimental assessment and validation of energy-maximising moment-based optimal control for a prototype wave energy converter.
Control Engineering Practice, 133 (105454).
pp. 1-15.
ISSN 0967-0661
Abstract
In recent years, a framework for control of wave energy converters (WECs), termed moment-based control, has been developed within the wave energy conversion literature, exhibiting a remarkable performance in terms of energy absorption, while retaining real-time computational capabilities. Nonetheless, to date, practical results regarding moment-based control for WEC systems have been exclusively provided in numerical simulation, i.e. there is currently a lack of ‘real-world’ assessment of this promising control framework. Motivated by this, we present, in this paper, an experimental assessment and validation of moment-based WEC control for a prototype Wavestar wave energy converter, at the tank-testing facilities of Aalborg University, Denmark. In particular, we address the control design and synthesis procedure in an integrated fashion, covering experimental (physically consistent) system identification, unknown-input estimation and forecasting of wave excitation force, and subsequent control law implementation. We demonstrate that the moment-based controller is able to effectively maximise energy absorption from the wave resource in real-time, with a significant and consistent improvement with respect to the defined benchmark case. The results presented and discussed in this paper demonstrate the feasibility of moment-based WEC control, filling the gap between the attractive theoretical aspects associated with such a strategy, and the practical WEC energy conversion application.
| Item Type: |
Article
|
| Keywords: |
Wave energy;
Experimental validation;
Energy-maximising control;
Optimal control;
Moment;
Moment-matching; |
| Academic Unit: |
Faculty of Science and Engineering > Electronic Engineering |
| Item ID: |
18952 |
| Identification Number: |
https://doi.org/10.1016/j.conengprac.2023.105454 |
| Depositing User: |
Professor John Ringwood
|
| Date Deposited: |
01 Oct 2024 11:06 |
| Journal or Publication Title: |
Control Engineering Practice |
| Publisher: |
Elsevier |
| Refereed: |
Yes |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
Repository Staff Only(login required)
 |
Item control page |
Downloads per month over past year
Origin of downloads
Altmetric
Altmetric