Proceedings Article10.1109/APEC.2013.6520541
Optimized magnetic design for inductive power transfer coils
Roman Bosshard,J. Muhlethaler,Johann W. Kolar,Ivica Stevanovic +3 more
- 17 Mar 2013
- pp 1812-1819
172
TL;DR: In this article, the influence of the transmission frequency on the inductor quality factor and the efficiency of IPT systems is analyzed taking also the admissible field emissions as limited by standards into account.
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Abstract: Inductive Power Transfer (IPT) is well-established for applications with biomedical implants and radio-frequency identification systems. Recently, also systems for the charging of the batteries of consumer electronic devices and of electric and hybrid electric vehicles have been developed. The efficiency η of the power transfer of IPT systems is given by the inductor quality factor Q and the magnetic coupling k of the transmission coils. In this paper, the influence of the transmission frequency on the inductor quality factor and the efficiency is analyzed taking also the admissible field emissions as limited by standards into account. Aspects of an optimization of the magnetic design with respect to a high magnetic coupling and a high quality factor are discussed for IPT at any power level. It is shown that the magnetic coupling mainly depends on the area enclosed by the coils and that their exact shape has only a minor influence. The results are verified with an experimental prototype.
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Citations
Modeling the Load Equivalent Resistance of a Series-Series Inductive-Coupled Resonant Wireless Power Transfer System
Andrea Carloni,Roberto Di Rienzo,Federico Baronti,Roberto Roncella,Roberto Saletti +4 more
- 01 Sep 2020
TL;DR: It is shown that the development of a new analytical model to extract the load equivalent resistance is required to justify the large difference found and the results are compared to those obtained by the typical model generally used in the literature.
Multivariable Compensation for Wireless Power Transfer Systems in Dynamic Environments
Rodrigo Wolff Porto,Lucas Murliky,Valner Joao Brusamarello,Fernando Rangel de Sousa +3 more
- 01 Jan 2019
TL;DR: This chapter intends to give some contributions to the dynamic compensation of inductive links, starting with the modeling of the inductive link in Section 2, where the authors show how the magnetic coupling coefficient and the load influence on the PDL.
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A. A. Kharchevskii,Ildar Yusupov,Dmitry Dobrykh,Mikhail Udrov,Sergey Geyman,Yulia Grigorovich,Alexander Zolotarev,Mikhail S. Sidorenko,Irina V. Melchakova,Anna Mikhailovskaya,Pavel Ginzburg +10 more
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