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    Geometric optimization of a hinge-barge wave energy converter


    Wang, LiGuo and Ringwood, John (2019) Geometric optimization of a hinge-barge wave energy converter. European Tidal and Wave Energy Conference Proceedings (1389). ISSN 2706-6940

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    Abstract

    Based on a small prototype of the McCabe wave pump device, this paper studies the optimal size of an interconnected pontoon system, where the power take-off systems attached to each barge are equipped with optimal linear passive dampers. To this end, an optimization procedure is developed, where the objective is to maximize the extracted energy of the device under given sea states. A multi-DOF mathematical model is presented to describe the device motion, and associated hydrodynamic parameters are computed using a boundary element model tool, based on linear potential flow theory. Numerical results, under regular and irregular waves, are presented. Simulation results show that the optimal dimension of the device, under given sea states, can be found using the developed methodology. In addition, it is found that the three-body hinge-barge device tends to perform like a two-body system under optimal control conditions. This indicates that a two-barge control system may be a better design solution in those situations, considering the high cost of power take-off systems.

    Item Type: Article
    Additional Information: This paper is based on upon work supported by Science Foundation Ireland under Grant No. SFI/13/IA/1886 and Grant No. 12/RC/2302 for MaREI Centre for Marine and Renewable Energy.
    Keywords: Multi-body wave energy converters; hinge barge; geometry optimization; energy maximizing control; optimal linear passive control;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 14284
    Depositing User: Professor John Ringwood
    Date Deposited: 30 Mar 2021 13:52
    Journal or Publication Title: European Tidal and Wave Energy Conference Proceedings
    Publisher: EWTEC
    Refereed: Yes
    Funders: Science Foundation Ireland (SFI)
    URI:

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