基于正四面体的无线电能传输系统多自由度电能拾取机构.PDF

第 36 卷 第 23 期 中 国 电 机 工 程 学 报 Vol.36 No.23 Dec. 5, 2016 6460 2016 年 12 月 5 日 Proceedings of the CSEE ©2016 Chin.Soc.for Elec.Eng. DOI ：10.13334/j.0258-8013.pcsee.152575 文章编号：0258-8013 (2016) 23-6460-08 中图分类号：TM 46 基于正四面体的无线电能传输系统 多自由度电能拾取机构 戴欣，李璐，余细雨，李艳玲，孙跃 (重庆大学自动化学院，重庆市 沙坪坝区 400044) Multi-degree-of-freedom Pick-up Mechanism of Wireless Power Transfer Systems Based on the Regular Tetrahedron DAI Xin, LI Lu, YU Xiyu, LI Yanling, SUN Yue (School of Automation, Chongqing University, Shapingba District, Chongqing 400044, China) ABSTRACT: The traditional Wireless Power Transfer (WPT) 针对无线电能传输系统三维空间内多自由度拾取问题，该文 system is sensitive to the directivity of pickup structure. The 提出一种基于正四面体的电能拾取机构，给出拾取电感摆放 pickup angle will greatly affect the system power transmission 位置及连接方式，完成拾取机构磁通分析，提出拾取机构在 characteristics. To solve the problems existing in the 空间内旋转时不同绕线方式的互感计算方法，设计拾取线圈 conventional wireless power transfer system for multi-angle 的最优绕线方案，通过 Maxwell 有限元仿真获得拾取线圈 power pickup in a three-dimensional space, a novel pick-up 间的相互耦合关系。实验结果表明：当耦合机构以任意角度 mechanism based on the regular tetrahedron was put forward. 旋转时，系统多自由度运行的效率维持在 60%，负载功率 The placement and connection of pickup inductances were 维持在 30W 。此种类型的拾取机构不仅能提升系统的多自 introduced. Through analyzing the magnetic flux of pick-up 由度拾取能力，还可以保持输出的稳定性，减小系统对输出 mechanism, the mutual inductance calculation methods of 控制环节的依赖，减小拾取装置体积。 different winding schemes for rotating pickup mechanism was 关键词：无线电能传输；正四面体；多自由度；最优绕线 proposed, and the