Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title A New Concept of Magnetic Cable for Safe Mobile Power Delivery
Authors 李寧Woo-Young Lee ; Jin Huh ; Su-Yong Choi ; 林Chun-Taek Rim
DOI 10.6113/TKPE/2011.16.6.542
Page pp.542-553
ISSN 1229-2214
Keywords Magnetic cable; Mobile power delivery; Magnetic shields
Abstract A magnetic cable that can safely deliver high frequency AC electric power in flammable or sensitive workplaces by preventing from arcs and electric shocks is firstly proposed in this paper. Several new magnetic cable structures with magnetic shields, which are composed of such cancel coil, cancel copper plate, and cancel copper pipe, were compactly implemented by considering and analyzing fringe field and thus the parallel leakage flux is drastically reduced. The output power and efficiency of a prototype magnetic cable with 1.5 m length and 5 cm gap were measured as 353.8 W and 68 %, where the source current and switching frequency were 10 Arms and 20 kHz, respectively. The proposed magnetic cables are fully analyzed and verified by finite-element method (FEM) simulations and experiments. The results are in a good agreement.