An Efficient Design of Inductive Transmitter and Receiver Coils for Wireless Power Transmission

Wireless power transmission (WPT) is commonly used today in many important daily applications, such as electric vehicles, mobile phones, and implanted medical devices. The transmitter and receiver coils are essential elements in the WPT system, and the coupling coefficient between these coils plays...

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Bibliographic Details
Published in:Electronics (Basel) 2023-02, Vol.12 (3), p.564
Main Authors: Solouma, Nahed H., Kassahun, Haile Baye, Alsharafi, Abdulhameed S., Syed, Abeer, Gardner, Michael R., Alsharafi, Sadeq S.
Format: Article
Language:English
Subjects:
CAD
Cell phones
Computer aided design
Control
Coupling coefficients
Design
Efficiency
Electric coils
Electric power
Electric vehicles
Inductance
Mathematical analysis
Optimization
Transmitters
Unmanned aerial vehicles
Wireless power transmission
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Summary:Wireless power transmission (WPT) is commonly used today in many important daily applications, such as electric vehicles, mobile phones, and implanted medical devices. The transmitter and receiver coils are essential elements in the WPT system, and the coupling coefficient between these coils plays an important role in increasing the power transfer efficiency. In this work, we introduce a new approach to optimizing the coupling coefficient between the transmitter and the receiver coils by changing the geometries and locations of the coil turns. In the optimization process, the geometry of the turns varies from a rhombus to a circular and then a rectangular shape according to a quasi-elliptical parameter value. The Neuman formula is used to calculate the self-inductance, mutual inductance, and coupling coefficient for each specific geometry and turn location. The configuration with the highest coupling coefficient is then selected at the end of the optimization process. The final WPT coils are tested and verified using Ansys software through electromagnetic and AC analysis simulations. The results show that the new approach could achieve smooth and easily manufacturable coils with higher coupling coefficients, thereby increasing the power transfer efficiency of WPT.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics12030564