标题：A new type of coil structure called pan-shaped coil of wireless charging system based on magnetic resonance
作者：Yue, Z. K.; Liu, Z. Z.; Hou, Y. J.; Zeng, H.; Liang, L. H.; Cui, S.
作者机构：[Yue, Z. K.; Liu, Z. Z.; Zeng, H.; Liang, L. H.; Cui, S.] Shandong Univ, Sch Elect Engn, Jinan 250061, Shandong, Peoples R China.; [Hou, Y. J.] Shan 更多
会议名称：2nd International Conference on New Energy and Future Energy System (NEFES)
会议日期：SEP 22-25, 2017
来源：2017 INTERNATIONAL CONFERENCE ON NEW ENERGY AND FUTURE ENERGY SYSTEM (NEFES 2017)
摘要：The problem that misalignment between the transmitting coil and the receiving coil significantly impairs the transmission power and efficiency of the system has been attached more and more attention. In order to improve the uniformity of the magnetic field between the two coils to solve this problem, a new type of coil called pan-shaped coil is proposed. Three-dimension simulation models of the planar-core coil and the pan-shaped coil are established using Ansoft Maxwell software. The coupling coefficient between the transmitting coil and the receiving coil is obtained by simulating the magnetic field with the receiving coil misalignment or not. And the maximum percentage difference strength along the radial direction which is defined as the magnetic field uniformity factor is calculated. According to the simulation results of the two kinds of coil structures, it is found that the new type of coil structure can obviously improve the uniformity of the magnetic field, coupling coefficient and power transmission properties between the transmitting coil and the receiving coil.