一种带引导磁芯的齿轮状松耦合变压器  

A Gear-shaped Loosely Coupled Transformer with Guiding Magnetic Core

作　　者：董艺 周玉斐[1] 刘帅 王莹莹 DONG Yi;ZHOU Yufei;LIU Shuai;WANG Yingying(College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China)

机构地区：[1]南京航空航天大学电子信息工程学院,江苏南京210016

出　　处：《电气传动》2023年第4期39-44,共6页Electric Drive

摘　　要：感应耦合式无线电能传输系统中,松耦合变压器的耦合系数是影响系统变换效率的关键因素。为提高其耦合系数,针对普通圆盘型松耦合变压器,基于其磁场仿真结果建立等效的磁路模型并作分析,在此基础上对圆盘形磁芯先后采取挖通孔、加引导磁芯的方法进行优化,并结合多U型磁芯结构提出一种新型齿轮状变压器结构。通过仿真与实验验证了该结构能在降低变压器重量的同时,有效提高其耦合系数,且具有良好的旋转稳定性。The coupling coefficient of the loosely coupled transformer in the inductively coupled wireless power transmission(ICPT)system is a key parameter affecting the conversion efficiency of the wireless energy transmission system.To improve the coupling coefficient,an equivalent magnetic circuit model was established and analyzed based on the magnetic field simulation results of ordinary disc-shaped loosely coupled transformer.On this basis,the disc-shaped magnetic core was optimized by digging through holes and adding guide cores,and a new gear-shaped transformer structure was proposed combined with multi-U-shaped magnetic core structure.Simulations and experiments verify that the structure can effectively increase the coupling coefficient of the transformer while reducing the weight of the transformer,and has good rotation stability.

关 键 词：感应耦合无线电能传输 松耦合变压器 磁路模型 齿轮状磁芯 

分 类 号：TM724[电气工程—电力系统及自动化]