IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v329y2025ics0360544225023345.html
   My bibliography  Save this article

Maximum power point tracking control strategy for built-in direct-drive wave energy converter

Author

Listed:
  • Wang, Hengyu
  • Wu, Weimin
  • Fan, Guodong
  • Cui, Lin
  • Blaabjerg, Frede

Abstract

The built-in direct-drive wave energy converter (BD-WEC) converts the mechanical energy of the buoy into electrical energy. The conventional maximum power point tracking (MPPT) control strategy is difficult to implement on the BD-WEC due to the cyclic variation and over-zero transients in the input power of the core power generation unit (CPGU). This manuscript derives the numerical relationship between the capacitor voltage at the rectifier output end of the permanent magnet synchronous generator (PMSG) and the average output power of the PMSG in the time domain is derived, and the P-V curves at the output of the PMSG are obtained for different wave frequencies and CPGU weights. An MPPT control strategy for BD-WEC is proposed, which uses the perturbation and observation (P&O) algorithm to autonomously track the maximum power point of the CPGU, and ensures the safe operation of high-weight CPGU through parallel position control. A prototype of the BD-WEC was manufactured in the laboratory, and MPPT control was implemented through a digital signal processor (DSP). Simulation and prototype experimental results show that the proposed MPPT control strategy can increase the energy conversion efficiency of a 90 kg CPGU to 32.5 % when the wave frequency is 0.143 Hz.

Suggested Citation

  • Wang, Hengyu & Wu, Weimin & Fan, Guodong & Cui, Lin & Blaabjerg, Frede, 2025. "Maximum power point tracking control strategy for built-in direct-drive wave energy converter," Energy, Elsevier, vol. 329(C).
    • Handle: RePEc:eee:energy:v:329:y:2025:i:c:s0360544225023345
    DOI: 10.1016/j.energy.2025.136692
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225023345
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.136692?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.

    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:energy:v:329:y:2025:i:c:s0360544225023345. 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.

    We have no bibliographic references for this item. You can help adding them by using 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/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.