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 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
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
| Original language | English |
|---|---|
| Title of host publication | Innovations in Renewable Energies Offshore |
| Subtitle of host publication | Proceedings of the 6th International Conference on Renewable Energies Offshore, RENEW 2024 |
| Editors | C. Guedes Soares, S. Wang |
| Publisher | CRC Press/Balkema |
| Pages | 351-358 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781003558859 |
| ISBN (Print) | 9781032905570 |
| DOIs | |
| Publication status | Published - 2024 |
| Event | 6th International Conference on Renewable Energies Offshore, RENEW 2024 - Lisbon, Portugal Duration: 2024 Nov 19 → 2024 Nov 21 |
Conference
| Conference | 6th International Conference on Renewable Energies Offshore, RENEW 2024 |
|---|---|
| Country/Territory | Portugal |
| City | Lisbon |
| Period | 2024/11/19 → 2024/11/21 |
Subject classification (UKÄ)
- Embedded Systems