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A comparison of approaches integrating power take-off systems into wave energy converters simulations

Shao, X. ; Ringsberg, J. W. ; Yao, H. D. ; Johnson, E. ; Forsberg, Jan ; Zeinali, Shokoufa LU ; Lindström, Johan LU orcid and Wiktorsson, Magnus LU orcid (2024) 6th International Conference on Renewable Energies Offshore, RENEW 2024 p.351-358
Abstract
In the design of a wave energy converter (WEC) in general, one critical aspect is to develop the
power take-off (PTO) system since it has a significant impact on the overall energy harnessing efficiency. There-
fore, the modelling of a PTO system should be considered in the simulation of a WEC and carefully tuned with its
parameters to guarantee prediction accuracy. However, it is a challenge to model a WEC system with the hydro-
dynamic system, mooring system and PTO system in a fast and robust way due to various limitations of commer-
cial software and in-house codes. This paper compares four WEC system models, which include either
a simplified or a full PTO system model. They also integrate simplified, modified... (More)
In the design of a wave energy converter (WEC) in general, one critical aspect is to develop the
power take-off (PTO) system since it has a significant impact on the overall energy harnessing efficiency. There-
fore, the modelling of a PTO system should be considered in the simulation of a WEC and carefully tuned with its
parameters to guarantee prediction accuracy. However, it is a challenge to model a WEC system with the hydro-
dynamic system, mooring system and PTO system in a fast and robust way due to various limitations of commer-
cial software and in-house codes. This paper compares four WEC system models, which include either
a simplified or a full PTO system model. They also integrate simplified, modified or full hydrodynamic system
models. The most complex model considers a complete WEC system with a full hydrodynamic system, full PTO
system and mooring system. The study object is the point-absorber WEC WaveEL 3.0 designed by Waves4Power
AB. The power performance of the WEC is calculated for six sea states using the four models with different fidel-
ities. The results of the four models are analyzed, and their pros and cons are discussed. Modelling strategies to
fulfil different simulation goals are suggested (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Innovations in Renewable Energies Offshore : Proceedings of the 6th International Conference on Renewable Energies Offshore, RENEW 2024 - Proceedings of the 6th International Conference on Renewable Energies Offshore, RENEW 2024
editor
Soares, C. Guedes and Wang, S.
pages
8 pages
publisher
CRC Press/Balkema
conference name
6th International Conference on Renewable Energies Offshore, RENEW 2024
conference location
Lisbon, Portugal
conference dates
2024-11-19 - 2024-11-21
external identifiers
  • scopus:85208535856
ISBN
9781032905570
9781003558859
DOI
10.1201/9781003558859-39
language
English
LU publication?
yes
id
399d10d3-a204-4f22-a1b4-79247e817e09
date added to LUP
2025-01-28 10:38:22
date last changed
2025-07-16 00:00:34
@inproceedings{399d10d3-a204-4f22-a1b4-79247e817e09,
  abstract     = {{In the design of a wave energy converter (WEC) in general, one critical aspect is to develop the<br/>power take-off (PTO) system since it has a significant impact on the overall energy harnessing efficiency. There-<br/>fore, the modelling of a PTO system should be considered in the simulation of a WEC and carefully tuned with its<br/>parameters to guarantee prediction accuracy. However, it is a challenge to model a WEC system with the hydro-<br/>dynamic system, mooring system and PTO system in a fast and robust way due to various limitations of commer-<br/>cial software and in-house codes. This paper compares four WEC system models, which include either<br/>a simplified or a full PTO system model. They also integrate simplified, modified or full hydrodynamic system<br/>models. The most complex model considers a complete WEC system with a full hydrodynamic system, full PTO<br/>system and mooring system. The study object is the point-absorber WEC WaveEL 3.0 designed by Waves4Power<br/>AB. The power performance of the WEC is calculated for six sea states using the four models with different fidel-<br/>ities. The results of the four models are analyzed, and their pros and cons are discussed. Modelling strategies to<br/>fulfil different simulation goals are suggested}},
  author       = {{Shao, X. and Ringsberg, J. W. and Yao, H. D. and Johnson, E. and Forsberg, Jan and Zeinali, Shokoufa and Lindström, Johan and Wiktorsson, Magnus}},
  booktitle    = {{Innovations in Renewable Energies Offshore : Proceedings of the 6th International Conference on Renewable Energies Offshore, RENEW 2024}},
  editor       = {{Soares, C. Guedes and Wang, S.}},
  isbn         = {{9781032905570}},
  language     = {{eng}},
  pages        = {{351--358}},
  publisher    = {{CRC Press/Balkema}},
  title        = {{A comparison of approaches integrating power take-off systems into wave energy converters simulations}},
  url          = {{http://dx.doi.org/10.1201/9781003558859-39}},
  doi          = {{10.1201/9781003558859-39}},
  year         = {{2024}},
}