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

Matjaz Rozman, Michael Fernando, Bamidele Adebisi, Khaled M. Rabie, Tim Collins, Rupak Kharel and Augustine Ikpehai
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Matjaz Rozman: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
Michael Fernando: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
Bamidele Adebisi: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
Khaled M. Rabie: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
Tim Collins: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
Rupak Kharel: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK
Augustine Ikpehai: School of Engineering, Manchester Metropolitan University, Manchester M1 5GD, UK

Energies, 2017, vol. 10, issue 10, 1-18

Abstract: 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%.

Keywords: wireless power transfer (WPT); efficiency; strongly-coupled magnetic resonance (SCMR) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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