Simulation and Modelling of a Spatially-Efficient 3D Wireless Power Transfer System for Multi-User Charging

This paper presents the design, modelling and simulation of a wireless power transfer system with improved 3D spatial efficiency. It is shown that a rotational field driven by balanced magnetic coils carrying phase-shifted currents can achieve almost uniform efficiency in 3-D space. Both 2-coil and...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1407; no. 1; pp. 12104 - 12108
Main Authors Wang, Han-Wei, Wang, Nelson Xuntuo, Lang, Jeffrey H.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2019
Subjects
Excitation
Inductance
Magnetic coils
Modelling
Simulation
System effectiveness
Transmission
Wireless power transmission
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Summary:This paper presents the design, modelling and simulation of a wireless power transfer system with improved 3D spatial efficiency. It is shown that a rotational field driven by balanced magnetic coils carrying phase-shifted currents can achieve almost uniform efficiency in 3-D space. Both 2-coil and 3-coil transmitting systems are designed and studied. Effective mutual inductance is proposed to visualize the magnetic fields from a multiple transmitter system, and efficiency distributions are simulated. Different excitation modes including phase-shifted and non-phase-shifted currents are analysed and compared. The results provide an approach to the design and excitation of the 3D multiple-transmitting-coil system.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1407/1/012104