Doctoral thesis (Dissertations and theses)
Optinization of wireless energy transfer for mid-range distances
Ripp, Pascal
2017
 

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Keywords :
Wireless power; resonant magnetic coupling
Abstract :
[en] This thesis deals with the optimization of resonators for wireless power transfer by resonant magnetic coupling, where loosely coupled LC resonators are used for wireless power transmission. While systems that are currently available use discrete capacitors for frequency tuning, this work proposes self-resonating coils on a printed circuit board. For these coils, different three-dimensional (3D) Computer Aided Design (CAD) models are created and investigated using the method of finite elements. Finally, a set of inductively coupled and capacitively coupled self-resonant coils for the 6.78 MHz ISM band is found. Furthermore, the shielding of the coils with ferrite materials is discussed to maintain a high efficiency for any application. For both types, equivalent circuit models are derived and analyzed. Besides the coil optimization, a power amplifier is also proposed. During operation the optimal operational frequency is maintained by frequency tracking. The theoretical results are verified using a demonstrator circuit.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Ripp, Pascal ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Language :
English
Title :
Optinization of wireless energy transfer for mid-range distances
Defense date :
03 April 2017
Number of pages :
140
Institution :
Unilu - University of Luxembourg, Luxembourg
Degree :
Docteur en Sciences de l'Ingénieur
Promotor :
Voos, Holger  
Osterrieder, Siegfried
President :
Jury member :
Available on ORBilu :
since 20 September 2017

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