LAPSE:2018.1172
Published Article
LAPSE:2018.1172
Coordinated Control of Wave Energy Converters Subject to Motion Constraints
Liguo Wang, Jens Engström, Mats Leijon, Jan Isberg
November 28, 2018
In this paper, a generic coordinated control method for wave energy converters is proposed, and the constraints on motion amplitudes and the hydrodynamic interaction between converters are considered. The objective of the control problem is to maximize the energy converted from ocean waves, and this is achieved by coordinating the power take-off (PTO) damping of each wave energy converter in the frequency domain in each sea state. In a case study, a wave energy farm consisting of four converters based on the concept developed by Uppsala University is studied. In the solution, motion constraints, including constraints on the amplitudes of displacement and velocity, are included. Twelve months of sea states, based on measured wave data at the Lysekil test site on the Swedish west coast, are used in the simulation to evaluate the performance of the wave energy farm using the new method. Results from the new coordinated control method and traditional control method are compared, indicating that the coordinated control of wave energy converters is an effective way to improve the energy production of wave energy farm in harmonic waves.
Keywords
coordinated control, frequency domain, motion constraints, optimal damping, wave energy farm
Suggested Citation
Wang L, Engström J, Leijon M, Isberg J. Coordinated Control of Wave Energy Converters Subject to Motion Constraints. (2018). LAPSE:2018.1172
Author Affiliations
Wang L: Department of Engineering Sciences, Swedish Centre for Renewable Electric Energy Conversion, Division of Electricity, the Ångström Laboratory, Uppsala University, P.O. Box 534, Uppsala 75 121, Sweden [ORCID]
Engström J: Department of Engineering Sciences, Swedish Centre for Renewable Electric Energy Conversion, Division of Electricity, the Ångström Laboratory, Uppsala University, P.O. Box 534, Uppsala 75 121, Sweden
Leijon M: Department of Engineering Sciences, Swedish Centre for Renewable Electric Energy Conversion, Division of Electricity, the Ångström Laboratory, Uppsala University, P.O. Box 534, Uppsala 75 121, Sweden
Isberg J: Department of Engineering Sciences, Swedish Centre for Renewable Electric Energy Conversion, Division of Electricity, the Ångström Laboratory, Uppsala University, P.O. Box 534, Uppsala 75 121, Sweden [ORCID]
[Login] to see author email addresses.
Journal Name
Energies
Volume
9
Issue
6
Article Number
E475
Year
2016
Publication Date
2016-06-21
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en9060475, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2018.1172
This Record
External Link

doi:10.3390/en9060475
Publisher Version
Download
Files
[Download 1v1.pdf] (2.9 MB)
Nov 28, 2018
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
12
Version History
[v1] (Original Submission)
Nov 28, 2018
 
Verified by curator on
Nov 28, 2018
This Version Number
v1
Citations
Most Recent
This Version
URL Here
http://psecommunity.org/LAPSE:2018.1172
 
Original Submitter
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version