Title :
Uniform magnetic field of the planar coil with new winding structure for displacement-insensitive WPT
Author :
Laiwei Shen ; Wanchun Tang ; Huiling Xiang ; Wei Zhuang
Author_Institution :
Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
In near field wireless power transfer (WPT), the uniformity of magnetic field distribution near the transmitting coil is needed since it would affect the stability of transfer efficiency when the receiving coil is moving. In this paper, we proposed a new coil structure constructed of 3 or more spiral coils in series based on the relationship between current distribution and magnetic field distribution. Compared with previous literatures, this proposed coil can generate a more uniform magnetic field distribution.
Keywords :
coils; inductive power transmission; current distribution; displacement-insensitive WPT; magnetic field distribution uniformity; near-field wireless power transfer; planar coil; receiving coil; spiral coil; transfer efficiency stability; transmitting coil; winding structure; Coils; Couplings; Current distribution; Magnetic fields; Spirals; Windings; Wireless communication;
Conference_Titel :
Communication Problem-Solving (ICCP), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-4246-6
DOI :
10.1109/ICCPS.2014.7062303
