MURAL - Maynooth University Research Archive Library



    On Loss-Aware Optimal Control of Wave Energy Converters With Electrical Power Take-Offs


    Lin, Zechuan, Zhou, Jiayue, Huang, Xuanrui, Chen, Kemeng, Xiao, Xi and Ringwood, John (2024) On Loss-Aware Optimal Control of Wave Energy Converters With Electrical Power Take-Offs. IEEE Transactions on Sustainable Energy, 15 (4). pp. 2209-2218. ISSN 1949-3029

    [thumbnail of JR_on.pdf]
    Preview
    Text
    JR_on.pdf
    Available under License Creative Commons Attribution Non-commercial Share Alike.

    Download (10MB) | Preview

    Abstract

    Incorporating the non-ideal power take-off (PTO) efficiency of wave energy converters (WECs) into energy-maximizing control is crucial for achieving optimal electrical power generation. The majority of previous loss-aware controllers are based on a simplified power-coefficient (PC) model or only consider the copper loss, which remain insufficient to describe a real electrical PTO. In this article, a high-fidelity loss model, encompassing different loss components of the PTO (a generator and a power converter), is developed, and a number of loss-aware model predictive control (MPC) options are derived and compared in a realistic case study. The results highlight the importance of using an appropriate loss model, rather than a PC model, both for power evaluation and for control, and it is shown that a quadratic loss model employed in MPC is effective in approximating the true loss function, so that near-optimal power production can be achieved with fast computation.
    Item Type: Article
    Keywords: Wave energy converter; power take-off; loss model; model predictive control;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 20152
    Identification Number: 10.1109/tste.2024.3407126
    Depositing User: Professor John Ringwood
    Date Deposited: 01 Jul 2025 13:32
    Journal or Publication Title: IEEE Transactions on Sustainable Energy
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Refereed: Yes
    Related URLs:
    URI: https://mural.maynoothuniversity.ie/id/eprint/20152
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

    Repository Staff Only (login required)

    Item control page
    Item control page

    Downloads

    Downloads per month over past year

    Origin of downloads