IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i13p3482-d380811.html
   My bibliography  Save this article

Capacitive Wireless Power Transfer with Multiple Transmitters: Efficiency Optimization

Author

Listed:
  • Ben Minnaert

    (Department of Industrial Science and Technology, Odisee University College of Applied Sciences, 9000 Ghent, Belgium)

  • Alessandra Costanzo

    (Department of Electrical, Electronic and Information Engineering Guglielmo Marconi, University of Bologna, 40126 Bologna, Italy)

  • Giuseppina Monti

    (Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy)

  • Mauro Mongiardo

    (Department of Engineering, University of Perugia, 06123 Perugia, Italy)

Abstract

Wireless power transfer with multiple transmitters can have several advantages, including more robustness against misalignment and extending the mobility and range of the receiver(s). In this work, the efficiency maximization problem is analytically solved for a capacitive wireless power transfer system with multiple coupled transmitters and a single receiver. It is found that the system efficiency can be increased by adding more transmitters. Moreover, it is proven that the cross-coupling between the transmitters can be eliminated by adding shunt susceptances at the input ports. Optimal values for the input currents and receiver load are determined to achieve maximum efficiency. As well the optimal load, the optimal input currents and the maximum efficiency are independent on the cross-coupling. By impedance-matching the internal conductances of the generators, the maximum-efficiency solution also becomes the one that provides the maximum output power. Finally, by expressing each transmitter–receiver link with its kQ-product, the maximum system efficiency can be calculated. The analytical results are verified by circuital simulation.

Suggested Citation

  • Ben Minnaert & Alessandra Costanzo & Giuseppina Monti & Mauro Mongiardo, 2020. "Capacitive Wireless Power Transfer with Multiple Transmitters: Efficiency Optimization," Energies, MDPI, vol. 13(13), pages 1-17, July.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:13:p:3482-:d:380811
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/13/3482/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/13/13/3482/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Ben Minnaert & Nobby Stevens, 2017. "Optimal Analytical Solution for a Capacitive Wireless Power Transfer System with One Transmitter and Two Receivers," Energies, MDPI, vol. 10(9), pages 1-16, September.
    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. Suziana Ahmad & Reiji Hattori & Aam Muharam, 2021. "Generalized Circuit Model of Shielded Capacitive Power Transfer," Energies, MDPI, vol. 14(10), pages 1-19, May.
    2. Bo Dong & Yang Chen & Jing Lian & Xiaohui Qu, 2022. "A Novel Compensation Circuit for Capacitive Power Transfer System to Realize Desired Constant Current and Constant Voltage Output," Energies, MDPI, vol. 15(4), pages 1-18, February.
    3. You-Chen Weng & Chih-Chiang Wu & Edward Yi Chang & Wei-Hua Chieng, 2021. "Minimum Power Input Control for Class-E Amplifier Using Depletion-Mode Gallium Nitride High Electron Mobility Transistor," Energies, MDPI, vol. 14(8), pages 1-16, April.

    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. Cédric Lecluyse & Ben Minnaert & Michael Kleemann, 2021. "A Review of the Current State of Technology of Capacitive Wireless Power Transfer," Energies, MDPI, vol. 14(18), pages 1-22, September.
    2. Fei Lu & Hua Zhang & Chris Mi, 2017. "A Review on the Recent Development of Capacitive Wireless Power Transfer Technology," Energies, MDPI, vol. 10(11), pages 1-30, November.

    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:13:y:2020:i:13:p:3482-:d:380811. 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: 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.