Parametric Modelling of a Reconfigurable Wave Energy Device

Nathan Tom, Jochem Weber, Louis Papillon, LiGuo Wang, John Ringwood

Research output: Contribution to journalArticlepeer-review

15 Scopus Citations

Abstract

To date, one of the difficulties with wave energy devices is modulating the power transfer from the waves to the generator. In wind turbines, this is achieved by turbine pitch control, leading to the ubiquitous flat power curve. Recently, a wave energy converter, having moveable vanes, has been developed by the National Renewable Energy Laboratory (NREL) in the US. This paper described the development of a compact hydrodynamic model for the NREL device, based on multiple linear hydrodynamic modelling (Murray-Smith and Johansen, 1997), which can be used to model the hydrodynamic behaviour of the device across its full operational spectrum of vane angles. To show the utility of the model, we demonstrate a flat power curve for the WEC, using the vane angles as a control input.

Original languageAmerican English
Article number106105
Number of pages10
JournalOcean Engineering
Volume186
DOIs
StatePublished - 15 Aug 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

NREL Publication Number

  • NREL/JA-5000-74127

Keywords

  • Geometry control
  • Hydrodynamic gain
  • Oscillating surge wave energy converter
  • Parametric modelling
  • Power absorption control
  • Wind/wave energy comparison

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