Coil enhancements for high efficiency wireless power transfer applications

Author

Sampath, J.P.K. ; Alphones, A. ; Vilathgamuwa, D.M. ; Ong, Andrew ; Nguyen, X.B.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2014

Firstpage

2978

Lastpage

2983

Abstract

Achieving high efficiency with improved power transfer range and misalignment tolerance is the major design challenge in realizing Wireless Power Transfer (WPT) systems for industrial applications. Resonant coils must be carefully designed to achieve highest possible system performance by fully utilizing the available space. High quality factor and enhanced electromagnetic coupling are key indices which determine the system performance. In this paper, design parameter extraction and quality factor optimization of multi layered helical coils are presented using finite element analysis (FEA) simulations. In addition, a novel Toroidal Shaped Spiral (TSS) coil is proposed to increase power transfer range and misalignment tolerance. The proposed shapes and recommendations can be used to design high efficiency WPT resonator in a limited space.

Keywords

Q-factor; coils; electromagnetic coupling; finite element analysis; inductive power transmission; optimisation; FEA; TSS coil; design parameter extraction; electromagnetic coupling; finite element analysis; high efficiency wireless power transfer; industrial applications; misalignment tolerance; multilayered helical coils; power transfer range; quality factor optimization; resonant coils; toroidal shaped spiral coil; Coils; Couplings; Q-factor; Resistance; Resonant frequency; Shape; Spirals; Wireless power transfer; coil design; electromagnetic coupling; misalignment tolerance; quality factor;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE

Type

conf

DOI

10.1109/IECON.2014.7048933

Filename

7048933