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    Hierarchical Robust Control of Oscillating Wave Energy Converters With Uncertain Dynamics


    Fusco, F. and Ringwood, John (2014) Hierarchical Robust Control of Oscillating Wave Energy Converters With Uncertain Dynamics. IEEE Trans. on Sustainable Energy, 5 (3).

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    Abstract

    Energy-maximizing controllers for wave energy devices are normally based on linear hydrodynamic device models. Such models ignore nonlinear effects which typically manifest themselves for large device motion (typical in this application) and may also include other modeling errors. The effectiveness of a controller is, in general, determined by the match between the model the controller is based on and the actual system dynamics. This match becomes especially critical when the controller is highly tuned to the system. In this paper, we present a methodology for reducing this sensitivity to modeling errors and nonlinear effects by the use of a hierarchical robust controller, which shows small sensitivity to modeling errors, but allows good energy maximization to be recovered through a passivity-based control approach.

    Item Type: Article
    Keywords: Hierarchical robust control; oscillating wave energy converters; uncertain dynamics;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 6778
    Depositing User: Professor John Ringwood
    Date Deposited: 13 Jan 2016 15:39
    Journal or Publication Title: IEEE Trans. on Sustainable Energy
    Publisher: IEEE
    Refereed: Yes
    URI:

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