弧形四轴可移动解耦组合抗偏移无线充电系统  

Arc-shaped Four Axis Movable Decoupling Combination Anti-offset Wireless Charging System

作　　者：徐国清 李冠林[1] 郭晓阳 陈希有[1] XU Guo-qing;LI Guan-lin;GUO Xiao-yang;CHEN Xi-you(Dalian University of Technology,Dalian 116081,China)

机构地区：[1]大连理工大学,电气工程学院,辽宁大连116081

出　　处：《电力电子技术》2024年第11期91-94,共4页Power Electronics

基　　金：国家自然科学基金(51877025)。

摘　　要：针对自主水下航行器(AUV)在无线充电时耦合结构容易出现相对偏移,导致输出电压不稳定的问题,此处提出了一种弧形四轴可移动解耦(FAMD)线圈结构。由于具有FAMD的特性,该结构可以辅助各种组合补偿电路在出现旋转偏移、轴向偏移、旋转-轴向双偏移等多种情况时消除交叉互感,从而提高系统多方向的输出稳定性。通过理论分析及COMSOL仿真证明了该结构的FAMD特性。为验证FAMD线圈在系统中的效果,搭建了250 W样机。实验结果表明:在FAMD线圈的辅助下,系统可以在-25°~25°旋转偏移、-65~65 mm轴向偏移或-65~65 mm旋转-轴向双偏移范围内,输出电压波动在±5%以内;系统效率始终高于86%,最高可达90.4%。In response to the problem that the coupling structure of autonomous underwater vehicles(AUV)is prone to relative deviation during wireless charging,resulting in unstable output voltage,an arc-shaped four axis movable decoupling(FAMD)coil structure is proposed.Due to its FAMD feature,this structure can assist various combination compensation circuits in eliminating cross inductance in various situations such as rotational offset,axial offset,and rotational-axial dual offset,thereby improving the multi-directional output stability of the system.The FAMD feature of the structure has been demonstrated through theoretical analysis and COMSOL simulation.in order to verify the effectiveness of FAMD coils in the system,a 250 W prototype is built.The experimental results show that with the assistance of FAMD coils,the system can achieve output voltage fluctuations within±5%within the range of-25°~25°rotational offset,-65~65 mm axial offset,or-65~65 mm rotational-axial dual offset.The system efficiency remains above 86%,with a maximum of 90.4%.

关 键 词：无线充电 自主水下航行器 耦合结构 抗偏移 

分 类 号：TM724[电气工程—电力系统及自动化]