Title :
Mitigation of the magnetic field generated by a wireless power transfer (WPT) system without reducing the WPT efficiency
Author :
Feliziani, Mauro ; Cruciani, Silvano
Author_Institution :
Dept. of Ind. & Inf. Eng. & Econ., Univ. of L´Aquila, L´Aquila, Italy
Abstract :
This paper deals with the magnetic shielding of the field generated by a wireless power transfer (WPT) system in air at the frequency of 20 kHz. Different shielding techniques are considered and the results obtained by the use of conductive shields, magnetic shields and passive coils are compared. The analysis is carried out by a hybrid technique based on the coupling between electrical circuits and quasi-static electromagnetic fields.
Keywords :
coils; inductive power transmission; magnetic fields; magnetic shielding; WPT efficiency; WPT system; conductive shields; electrical circuits; frequency 20 kHz; hybrid technique; magnetic field; magnetic shielding; passive coils; quasi-static electromagnetic fields; shielding techniques; wireless power transfer; Capacitors; Coils; Magnetic fields; Magnetic flux; Magnetic noise; Magnetic shielding; Windings; Magnetic shielding; conductive shielding; near magnetic field; shielding effectiveness; wireless power transfer (WPT);
Conference_Titel :
Electromagnetic Compatibility (EMC EUROPE), 2013 International Symposium on
Conference_Location :
Brugge
