A Fast Method for Generating Time-Varying Magnetic Field Patterns of Mid-Range Wireless Power Transfer Systems

Author

Cheng Zhang ; Wenxing Zhong ; Xun Liu ; Hui, Shu Yuen Ron

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China

Volume

30

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1513

Lastpage

1520

Abstract

Visualizing the magnetic flux paths for wireless power transfer systems enables researchers and engineers to understand the operations and design the geometrical dimensions of the practical systems. However, time-domain transient simulations of 3-D electromagnetic fields of complex wireless power transfer systems with multiple coil-resonators are extremely time-consuming. This paper describes a fast hybrid approach that combines the time-domain coupled circuit modeling and the magnetostatic analysis to form a fast time-domain analytical tool for studying complex wireless power transfer systems. The proposed methodology has been successfully applied to several wireless domino-resonator systems. For the first time, the time-varying magnetic flux variations of wireless power domino-resonator systems can be visualized in computer simulations.

Keywords

coils; electromagnetic fields; magnetic flux; magnetostatics; radiofrequency power transmission; resonators; time-domain analysis; magnetostatic analysis; midrange complex wireless power transfer system; multiple coil-resonator; time-domain coupled circuit modeling; time-domain transient simulation; time-varying 3D magnetic field patterns; time-varying magnetic flux variations; wireless power domino-resonator system; Coupling circuits; Integrated circuit modeling; Magnetic fields; Magnetic flux; Mathematical model; Transient analysis; Wireless communication; Electromagnetic field solver; wireless power transfer;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2014.2316526

Filename

6786468