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    An Energy-Maximising Linear Time Invariant Controller (LiTe-Con) for Wave Energy Devices


    Garcia-Violini, Demian and Pena-Sanchez, Yerai and Faedo, Nicolas and Ringwood, John V. (2020) An Energy-Maximising Linear Time Invariant Controller (LiTe-Con) for Wave Energy Devices. IEEE Transactions on Sustainable Energy, 11 (4). pp. 2713-2721. ISSN 1949-3029

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    Abstract

    A Linear Time Invariant (LTI) energy-maximising control strategy for Wave Energy Converters (WECs) is proposed in this paper. Using the fundamental requirement of impedance matching, the controller is tuned to maximise the energy obtained under polychromatic wave excitation. Given the LTI nature of the proposed controller, the design and implementation procedure is significantly simpler than well-established energy-maximising controllers, including state-of-the-art numerical optimisation routines, which are predominant in this field. Additionally, a LTI constraint handling mechanism is provided. The effectiveness of both the LTI control strategy and the constraint handling mechanism are assessed using regular and irregular waves in unconstrained and constrained cases. The resulting performance is compared to those obtained using existing WEC optimal control strategies. Finally, the benefits, in terms of power production, for both the controller and the constraint handling mechanism are explicitly highlighted by means of an application case

    Item Type: Article
    Additional Information: Cite as: D. García-Violini, Y. Peña-Sanchez, N. Faedo and J. V. Ringwood, "An Energy-Maximising Linear Time Invariant Controller (LiTe-Con) for Wave Energy Devices," in IEEE Transactions on Sustainable Energy, vol. 11, no. 4, pp. 2713-2721, Oct. 2020, doi: 10.1109/TSTE.2020.2971392.
    Keywords: Wave energy; optimal control; impedance-matching; linear time invariant (LTI);
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 15959
    Identification Number: https://doi.org/10.1109/TSTE.2020.2971392
    Depositing User: Professor John Ringwood
    Date Deposited: 16 May 2022 11:11
    Journal or Publication Title: IEEE Transactions on Sustainable Energy
    Publisher: IEEE Explore
    Refereed: Yes
    URI:

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