Design of inductive power transmission systems considering tolerances and power loss

Kurschner, D.; Rathge, C.; Hoppe, Axel

doi:10.1109/iecon.2009.5414952

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…The induced electric current produced creates an eddy current which opposes the applied magnetic field generating the required shielding effect. For virtually all the research work studied, aluminium was used as the shielding material [7]- [11]. The choice of aluminium is because of its flexibility, conductivity and low weight.…”

Section: Introductionmentioning

confidence: 99%

Loss Performance Evaluation of Ferrite-Cored Wireless Power System with Conductive and Magnetic Shields

Olukotun

Partridge

Bucknall

2019

2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)

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This paper presents a loss evaluation of ferrite-cored wireless power transfer (WPT) systems using conductive and magnetic shield materials. The modelling and analyses of the coil systems were implemented using the finite element method. Three coil systems were modelled-circular coils, rectangular coils and flux-pipe coil system using magnetic shields (Mumetal and electrical steel) and conductive shields (aluminium and copper). From the results presented in the analyses, it was noted that ohmic losses and core losses in the WPT system are independent of the type of conductive shield used. Similarly, it was noted that the self-inductance, coupling coefficient and losses in the system is affected by the type of magnetic shield used. For the flux-pipe resonant coil system, high amount of power losses was recorded when a magnetic shield was used as the shielding topology while low amount of power losses was recorded in the circular coil and rectangular coil resonant systems when the magnetic shield was used as the shielding material. For an optimal WPT system requiring a low amount of eddy current losses, it was established that copper shield is the appropriate choice for flux-pipe resonant coils while electrical steel is the suitable shield material for the circular resonant coil and rectangular resonant coil systems.

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Section: Introductionmentioning

confidence: 99%