A novel method for reduction of coil weight and size in wireless power transfer

Mahdavifard, Morteza; Poorfakhraei, Amirreza; Tahami, Farzad

doi:10.1109/pedstc.2017.7910358

Cited by 1 publication

(1 citation statement)

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“…Furthermore, according to the authors this method simultaneously reduces the current in the secondary coil while the physical parameters of the coil are reduced. A significant reduction of 38% of a total coil weight has been gained in [38], where the authors proposed a selective harmonic approach of the transfer frequency.…”

Section: Introductionmentioning

confidence: 99%

A New Technique for Reducing Size of a WPT System Using Two-Loop Strongly-Resonant Inductors

Rozman¹,

Fernando²,

Adebisi³

et al. 2017

Energies

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Mid-range resonant coupling-based high efficient wireless power transfer (WPT) techniques have gained substantial research interest due to the number of potential applications in many industries. This paper presents a novel design of a resonant two-loop WPT technique including the design, fabrication and preliminary results of this proposal. This new design employs a compensation inductor which is combined with the transmitter and receiver loops in order to significantly scale down the size of the transmitter and receiver coils. This can improve the portability of the WPT transmitters in practical systems. Moreover, the benefits of the system enhancement are not only limited to the lessened magnitude of the T X & R X , simultaneously both the weight and the bill of materials are also minimised. The proposed system also demonstrates compatibility with the conventional electronic components such as capacitors hence the development of the T X & R X is simplified. The proposed system performance has been validated using the similarities between the experimental and simulation results. The power efficiency of the prototype circuit is found to be 93%, which is close to the efficiency reached by the conventional design. However, the weight of the transmitter and receiver inductors is now reduced by 78%, while the length of these inductors is reduced by 80%.

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Section: Introductionmentioning

confidence: 99%