Enhancing the performance of heaving wave energy converters using model-free control approach

M. A. Jama, H. Noura, A. Wahyudie, A. Assi

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

This paper investigates the application of model free control (MFC) strategy to optimally control the oscillation of single body heaving waves energy converter (WEC). The aim of the proposed controller is to maximize the electrical energy output of the device. The MFC is an off-line fixed structure control approach that combines between simplicity and insensitivity to system uncertainties and/or operational conditions. The proposed controller is based on a classical linear compensator, which is designed and tuned using only the well-known dynamics of the WEC. Therefore, any extra unknown or partially known dynamics are taken care of using the ultra-local model (ULM). Simulation results show that the MFC performance is superior to that of the base linear compensator, in terms of reference tracking capability and robustness towards uncertainties. Also other well-established control strategies are used to further validate the proposed controller.

Original languageEnglish
Pages (from-to)931-941
Number of pages11
JournalRenewable energy
Volume83
DOIs
Publication statusPublished - Nov 1 2015

Keywords

  • Model free control
  • Permanent magnet linear generator
  • Power take-off
  • Wave energy
  • Wave energy converter

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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