IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v159y2020icp1177-1187.html
   My bibliography  Save this article

Active control for multi-degree-of-freedom wave energy converters with load limiting

Author

Listed:
  • Hillis, A.J.
  • Whitlam, C.
  • Brask, A.
  • Chapman, J.
  • Plummer, A.R.

Abstract

An active control strategy is a key component to enable efficient, safe and economical operation of a wave energy converter (WEC). Many strategies have been developed, but most studies are limited to simplified simulation models of WECs which are not representative of real devices. Furthermore, many studies assume perfect knowledge of the wave excitation force, which is a necessary input to many control strategies. In this work, the aim is to develop an active control strategy to maximise power capture while limiting device loading to prolong its lifetime. An approximate optimal velocity tracking (AVT) controller with a Linear Quadratic Regulator velocity tracking loop is designed. The controller is applied to a validated full-scale nonlinear model of the WaveSub multi-DOF WEC in a range of realistic sea states. Only physically measurable quantities are used in the controller, meaning the strategy developed is deployable in a real system. The performance of the actively controlled system is compared to an optimally tuned passively damped system, and power gains of up to 80% are observed. This approach shows significance in providing a substantial increase in power capture for minimal additional device cost and therefore a major improvement in cost of energy would likely result.

Suggested Citation

  • Hillis, A.J. & Whitlam, C. & Brask, A. & Chapman, J. & Plummer, A.R., 2020. "Active control for multi-degree-of-freedom wave energy converters with load limiting," Renewable Energy, Elsevier, vol. 159(C), pages 1177-1187.
    • Handle: RePEc:eee:renene:v:159:y:2020:i:c:p:1177-1187
    DOI: 10.1016/j.renene.2020.05.073
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148120307722
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2020.05.073?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Faraggiana, E. & Whitlam, C. & Chapman, J. & Hillis, A. & Roesner, J. & Hann, M. & Greaves, D. & Yu, Y.-H. & Ruehl, K. & Masters, I. & Foster, G. & Stockman, G., 2020. "Computational modelling and experimental tank testing of the multi float WaveSub under regular wave forcing," Renewable Energy, Elsevier, vol. 152(C), pages 892-909.
    2. Cargo, C.J. & Hillis, A.J. & Plummer, A.R., 2016. "Strategies for active tuning of Wave Energy Converter hydraulic power take-off mechanisms," Renewable Energy, Elsevier, vol. 94(C), pages 32-47.
    3. Nguyen, Hoai-Nam & Tona, Paolino, 2020. "An efficiency-aware continuous adaptive proportional-integral velocity-feedback control for wave energy converters," Renewable Energy, Elsevier, vol. 146(C), pages 1596-1608.
    4. Vissio, Giacomo & Valério, Duarte & Bracco, Giovanni & Beirão, Pedro & Pozzi, Nicola & Mattiazzo, Giuliana, 2017. "ISWEC linear quadratic regulator oscillating control," Renewable Energy, Elsevier, vol. 103(C), pages 372-382.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ahmed Darwish & George A. Aggidis, 2022. "A Review on Power Electronic Topologies and Control for Wave Energy Converters," Energies, MDPI, vol. 15(23), pages 1-24, December.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Chen, Weixing & Wu, Zheng & Liu, Jimu & Jin, Zhenlin & Zhang, Xiantao & Gao, Feng, 2021. "Efficiency analysis of a 3-DOF wave energy converter (SJTU-WEC) based on modeling, simulation and experiment," Energy, Elsevier, vol. 220(C).
    2. Peng, Wei & Zhang, Yingnan & Zou, Qingping & Zhang, Jisheng & Li, Haoran, 2024. "Effect of varying PTO on a triple floater wave energy converter-breakwater hybrid system: An experimental study," Renewable Energy, Elsevier, vol. 224(C).
    3. Burgaç, Alper & Yavuz, Hakan, 2019. "Fuzzy Logic based hybrid type control implementation of a heaving wave energy converter," Energy, Elsevier, vol. 170(C), pages 1202-1214.
    4. Wang, Yingguang & Wang, Lifu, 2018. "Towards realistically predicting the power outputs of wave energy converters: Nonlinear simulation," Energy, Elsevier, vol. 144(C), pages 120-128.
    5. Clemente, D. & Rosa-Santos, P. & Taveira-Pinto, F., 2021. "On the potential synergies and applications of wave energy converters: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 135(C).
    6. Gao, Hong & Xiao, Jie & Liang, Ruizhi, 2024. "Capture mechanism of a multi-dimensional wave energy converter with a strong coupling parallel drive," Applied Energy, Elsevier, vol. 361(C).
    7. Gradowski, M. & Gomes, R.P.F. & Alves, M., 2020. "Hydrodynamic optimisation of an axisymmetric floating Oscillating Water Column type wave energy converter with an enlarged inner tube," Renewable Energy, Elsevier, vol. 162(C), pages 1519-1532.
    8. Xuhui, Yue & Qijuan, Chen & Zenghui, Wang & Dazhou, Geng & Donglin, Yan & Wen, Jiang & Weiyu, Wang, 2019. "A novel nonlinear state space model for the hydraulic power take-off of a wave energy converter," Energy, Elsevier, vol. 180(C), pages 465-479.
    9. Bechlenberg, Alva & Wei, Yanji & Jayawardhana, Bayu & Vakis, Antonis I., 2023. "Analysing the influence of power take-off adaptability on the power extraction of dense wave energy converter arrays," Renewable Energy, Elsevier, vol. 211(C), pages 1-12.
    10. Yubo Niu & Xingyuan Gu & Xuhui Yue & Yang Zheng & Peijie He & Qijuan Chen, 2022. "Research on Thermodynamic Characteristics of Hydraulic Power Take-Off System in Wave Energy Converter," Energies, MDPI, vol. 15(4), pages 1-15, February.
    11. Gao, Hong & Xiao, Jie, 2021. "Effects of power take-off parameters and harvester shape on wave energy extraction and output of a hydraulic conversion system," Applied Energy, Elsevier, vol. 299(C).
    12. Tao Yao & Yulong Wang & Zhihua Wang & Tongxian Li & Zhipeng Tan, 2022. "Research on Energy-Capture Characteristics of a Direct-Drive Wave-Energy Converter Based on Parallel Mechanism," Energies, MDPI, vol. 15(5), pages 1-19, February.
    13. Ni, Wenchi & Zhang, Xu & Zhang, Wei & Liang, Shuangling, 2021. "Numerical investigation of adaptive damping control for raft-type wave energy converters," Renewable Energy, Elsevier, vol. 175(C), pages 520-531.
    14. Penalba, Markel & Davidson, Josh & Windt, Christian & Ringwood, John V., 2018. "A high-fidelity wave-to-wire simulation platform for wave energy converters: Coupled numerical wave tank and power take-off models," Applied Energy, Elsevier, vol. 226(C), pages 655-669.
    15. Rodríguez, Claudio A. & Rosa-Santos, Paulo & Taveira-Pinto, Francisco, 2019. "Assessment of damping coefficients of power take-off systems of wave energy converters: A hybrid approach," Energy, Elsevier, vol. 169(C), pages 1022-1038.
    16. Zheng, Siming & Phillips, John Wilfrid & Hann, Martyn & Greaves, Deborah, 2023. "Mathematical modelling of a floating Clam-type wave energy converter," Renewable Energy, Elsevier, vol. 210(C), pages 280-294.
    17. Choupin, Ophelie & Henriksen, Michael & Tomlinson, Rodger, 2022. "Interrelationship between variables for wave direction-dependent WEC/site-configuration pairs using the CapEx method," Energy, Elsevier, vol. 248(C).
    18. Amini, Erfan & Mehdipour, Hossein & Faraggiana, Emilio & Golbaz, Danial & Mozaffari, Sevda & Bracco, Giovanni & Neshat, Mehdi, 2022. "Optimization of hydraulic power take-off system settings for point absorber wave energy converter," Renewable Energy, Elsevier, vol. 194(C), pages 938-954.
    19. Gaspar, José F. & Pinheiro, Rafael F. & Mendes, Mário J.G. C. & Kamarlouei, Mojtaba & Guedes Soares, C., 2024. "Review on hardware-in-the-loop simulation of wave energy converters and power take-offs," Renewable and Sustainable Energy Reviews, Elsevier, vol. 191(C).
    20. Yue, Xuhui & Geng, Dazhou & Chen, Qijuan & Zheng, Yang & Gao, Gongzheng & Xu, Lei, 2021. "2-D lookup table based MPPT: Another choice of improving the generating capacity of a wave power system," Renewable Energy, Elsevier, vol. 179(C), pages 625-640.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:159:y:2020:i:c:p:1177-1187. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.