自配置非对称磁路三相无线平面供电网

Self-Configuration Three-Phase Wireless Power Supply Network with Asymmetric Magnetic Circuit

针对传统单相无线供电(WPS)系统对原边和副边线圈之间的横向位置偏差低容忍度限制,构建一种用电设备可大范围自由移动的新型三相无线平面供电网,可实现平面内自由随机分布的用电设备群高效并行供电;同时,为消除三相WPS系统在传统对称磁路机构条件下固有电压拾取"盲点",提出一种可有效地消除拾取"盲点"的非对称磁路机构。仿真与实验表明,含非对称磁路机构的新型三相无线平面供电网不仅可有效提高三相WPS系统的功率传输能力,还可实现自由随机分布的移动设备在网内任意位置有效的能量传输。

Owing to the low tolerance for coil misalignment between the primary and secondary coils in traditional single-phase WPS(wireless power supply) system, a three-phase self-configuration WPS network is proposed in this paper, in which all the flat-screen mobile devices randomly distributed in the network can be efficiently powered at the same time. Meanwhile, in order to eliminate the 'dead spots' in the traditional three-phase WPS system with symmetric magnetic circuit, a new asymmetric magnetic circuit is proposed, which can effectively increase the power transfer capability of the three-phase WPS system. The viability of the proposed magnetic circuit is supported by a simulation and experiments, whose results show that the three-phase self-configuration WPS network with the asymmetric magnetic circuit plays an important role in the three-phase WPS system design, and the flat-screen mobile devices randomly distributed in the three-phase WPS network can pick-up power effectively and smoothly regardless of their positions relative to the network.