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(1994)
Boys, ''lokHz inductively coupled power transfer concept and control", Power Electronics and Variable-Speed Drives
A. Green, J. Boys (1994)
10 kHz inductively coupled power transfer-concept and control
“ A new concept of asymmetrical pickups for monorail inductively coupled power transfer systems ”
(1994)
Boys, ''lokHz inductively coupled power transferconcept and control
(2000)
Covic, "Critical Q analysis o f a current-fed resonant converter for ICPT applications
D. Kacprzak (2006)
A New Concept of Assymetrical Pickups for Monorail Inductively Coupled Power Transfer SystemsINTERMAG 2006 - IEEE International Magnetics Conference
(1991)
Contactless power delivery
K. Klontz, D. Divan, D. Novotny, R. Lorenz (1991)
Contactless Power Delivery System for Mining ApplicationsIEEE Transactions on Industry Applications, 31
J. Boys, A. Hu, G. Covic (2000)
Critical Q analysis of a current-fed resonant converter for ICPT applicationsElectronics Letters, 36
D. Kacprzak, G. Covic, J. Boys (2005)
An improved magnetic design for inductively coupled power transfer system pickups2005 International Power Engineering Conference
D. Kacprzak (2006)
A Novel S-Pickup for High Power Inductive Power Transfer SystemsINTERMAG 2006 - IEEE International Magnetics Conference
J. Boys, G.A.J. Elliott, G. Covic (2007)
An Appropriate Magnetic Coupling Co-Efficient for the Design and Comparison of ICPT PickupsIEEE Transactions on Power Electronics, 22
Purpose – This study seeks to apply finite element analysis to study the proximity effect in a multi‐pickup inductively coupled power transfer system, quantify the effect and propose improved pick‐up configurations. Design/methodology/approach – A mixture of approximate analytical formulae and accurate finite‐element simulations has been used as a tool for qualitative and quantitative analysis. Simplified consideration of magnetic flux paths aids understanding, whereas detailed numerical computation provides reliable performance prediction. Findings – It is shown that a multi‐pickup formation of conventional E‐pickups may lead to power loss due to negative coupling between neighbouring pickups and that the phenomenon is nonlinear. Thus, two novel configurations for multi‐pickup systems have been proposed, an alternately‐directed Z‐pickup and a spilt‐type E‐pickup, both showing improved linearity, increased total power and more efficient use of ferromagnetic material. Research limitations/implications – The investigation aimed mainly at the electromagnetic performance, while economic issues will still need to be addressed. Practical implications – The proposed pick‐up configurations may be very helpful in systems where improved performance is needed but space or configuration limitations restrict or eliminate the possibility of using other designs. Originality/value – The finite‐element aided magnetic field simulation has proved invaluable in achieving difficult design objectives. The combination of a simplified analytical approach and detailed numerical analysis has provided a reliable tool for accomplishing improved designs.
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing
Published: Aug 14, 2007
Keywords: Inductively coupled power transfer systems; Finite element analysis; Design methods
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