Authors

M.Z. Almuzakki, J.J. Barradas-Berglind, Y. Wei, M. Muñoz-Arias, A.I. Vakis, B. Jayawardhana

Abstract

In this paper, we present a port-Hamiltonian (pH) modeling of the wave-structure interaction described by the Cummins’ equation. This allows us to directly interconnect the wave-structure pH model with an existing pH model of (an array of) wave energy converters (WEC)s, thereby enabling the application of existing pH-based control and optimization methods to the interconnected WEC. We present a Hamiltonian function corresponding to the radiation terms, based on which a pH model of radiation forces is constructed. Lastly, using a simple array of floaters, where each one is connected to a linear power take-off (PTO) system, we compare the simulation of our pH model with the results of the standard open-source toolbox WEC-Sim, which is designed for simulating any type of WEC.

Keywords

Wave energy; Wave-structure interaction; Wave energy converter; WEC array; port-Hamiltonian modeling

Citation

  • Journal: IFAC-PapersOnLine
  • Year: 2018
  • Volume: 51
  • Issue: 3
  • Pages: 155–160
  • Publisher: Elsevier BV
  • DOI: 10.1016/j.ifacol.2018.06.043
  • Note: 6th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control LHMNC 2018

BibTeX

@article{Almuzakki_2018,
  title={{A port-Hamiltonian Approach to Cummins’ Equation for Floater Arrays with Linear Power-Take Off Systems}},
  volume={51},
  ISSN={2405-8963},
  DOI={10.1016/j.ifacol.2018.06.043},
  number={3},
  journal={IFAC-PapersOnLine},
  publisher={Elsevier BV},
  author={Almuzakki, M.Z. and Barradas-Berglind, J.J. and Wei, Y. and Muñoz-Arias, M. and Vakis, A.I. and Jayawardhana, B.},
  year={2018},
  pages={155--160}
}

Download the bib file

References

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