IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v17y2024i15p3711-d1444246.html
   My bibliography  Save this article

Optimization of Magnetic Core Structures for Enhanced Magnetic Coupling in Helical Coil Inductive Power Transmission

Author

Listed:
  • Ho-Yeong Lee

    (Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea)

  • Seung-Ahn Chae

    (Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea)

  • Min-Seung Song

    (Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea)

  • Gwan-Soo Park

    (Department of Electrical Engineering, Pusan National University, Busan 46241, Republic of Korea
    Robotics Institute of Non-Destructive Inspection, Pusan National University, Busan 46241, Republic of Korea)

Abstract

Inductive power transfer (IPT) systems often encounter limitations in efficiency and transmission distance due to near-field magnetic coupling characteristics. Increasing the inductance can enhance the transmission distance, but it also raises the system’s Q factor, leading to several issues. This study aimed to optimize the magnetic core design of helical coils to enhance magnetic coupling in IPT systems while minimizing the increase in self-inductance. Through finite element analysis, various core placements were evaluated, leading to a proposed core design process that integrates inner and lower cores at optimal angles. The proposed design was compared with conventional cores, and its performance was validated in an IPT system. The results demonstrate that the proposed core design significantly enhances the coupling coefficient ( k ) and extends power transmission distance compared with conventional planar and U-shaped core structures without substantially increasing self-inductance ( L ). This design effectively balances the trade-off between increasing inductance and maintaining system stability, thereby improving transmission efficiency while minimizing frequency instability and voltage stress.

Suggested Citation

  • Ho-Yeong Lee & Seung-Ahn Chae & Min-Seung Song & Gwan-Soo Park, 2024. "Optimization of Magnetic Core Structures for Enhanced Magnetic Coupling in Helical Coil Inductive Power Transmission," Energies, MDPI, vol. 17(15), pages 1-18, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:15:p:3711-:d:1444246
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/17/15/3711/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/17/15/3711/
    Download Restriction: no
    ---><---

    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:gam:jeners:v:17:y:2024:i:15:p:3711-:d:1444246. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.