IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v256y2026ipes0960148125017586.html

All-day autonomous MPPT energy storage PV-TEG hybrid system based on dual axis solar tracker

Author

Listed:
  • Liu, Wenzhuo
  • Lu, Mengying
  • Bai, Haoliang
  • Liu, Zhe
  • Lv, Song

Abstract

Photovoltaic-thermoelectric generator (PV-TEG) is a hot way to enhance full-spectrum utilization and improve energy conversion efficiency. However, the fluctuation of energy input in actual outdoor environments and the coupling characteristics of dual modules seriously affect the photovoltaic output performance and efficiency. This study proposes an integrated control strategy that combines maximum power point tracking (MPPT) with dual-axis solar tracking (DAST), enhancing the real-world performance of PV-TEG. The system uses DAST to precisely follow the sun's position through three-dimensional attitude calculation. To address real-time environmental fluctuations, this study combines the cuckoo search algorithm with constant current and constant voltage (CC-CV) charging strategies, enhancing the system's resilience and energy storage efficiency. Additionally, a synchronous buck converter circuit was employed to address energy losses in DC-DC converters during the energy storage process. Experimental results demonstrate an energy conversion efficiency of up to 98.93 % under load conditions. The 24-h outdoor operational comparative experiment demonstrated that, compared to the fixed south-facing PV-TEG system, our system exhibited significant improvements in key performance metrics. Specifically, the average output power increased by 71.73 %, the photovoltaic conversion efficiency improved by 10.01 %. This effectively reduces coupling losses in hybrid clean energy systems, promoting their future efficient utilization.

Suggested Citation

  • Liu, Wenzhuo & Lu, Mengying & Bai, Haoliang & Liu, Zhe & Lv, Song, 2026. "All-day autonomous MPPT energy storage PV-TEG hybrid system based on dual axis solar tracker," Renewable Energy, Elsevier, vol. 256(PE).
    • Handle: RePEc:eee:renene:v:256:y:2026:i:pe:s0960148125017586
    DOI: 10.1016/j.renene.2025.124094
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148125017586
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2025.124094?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

    for a different version of it.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:256:y:2026:i:pe:s0960148125017586. 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/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.