Three-phase magnetic field design for low EMI and EMF automated resonant wireless power transfer charger for UAV

Author

Chiuk Song ; Hongseok Kim ; Jung, Daniel H. ; Yoon, Kibum ; Yeonje Cho ; Sunkyu Kong ; Younghwan Kwack ; Joungho Kim

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

fYear

2015

fDate

13-15 May 2015

Firstpage

1

Lastpage

4

Abstract

Wireless power transfer (WPT) technology enables convenient and automatic battery charging for unmanned aerial vehicles (UAVs). However, in WPT charging systems, strong electromagnetic fields (EMFs) are inevitably generated and the power source contains a wide range of harmonics. In this paper, we propose an automated resonant wireless power transfer charger for UAV with three-phase magnetic field for electromagnetic interference (EMI) and EMF reduction. The simulation results show that the proposed six-step three-phase resonant WPT system for UAV charging reduces the total harmonic distortion (THD) of the Tx and Rx currents by 14.21% and 7.45%, respectively. The strength of magnetic field from the UAV three-phase resonant WPT charging system also can be reduced compared to the single-phase resonant WPT system.

Keywords

autonomous aerial vehicles; electromagnetic fields; electromagnetic interference; harmonic distortion; inductive power transmission; secondary cells; EMF; EMI; THD; UAV charging; WPT charging systems; WPT technology; battery charging; electromagnetic field; electromagnetic interference; magnetic field design; resonant wireless power transfer charger; total harmonic distortion; unmanned aerial vehicles; Batteries; Electromagnetic interference; Harmonic analysis; Inverters; Magnetic fields; Windings; Wireless communication; Wireless power transfer; electromagnetic fields; electromagnetic interference; inductive power transmission; resonant magnetic field; total harmonic distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Power Transfer Conference (WPTC), 2015 IEEE

Conference_Location

Boulder, CO

Type

conf

DOI

10.1109/WPT.2015.7140179

Filename

7140179