无线电能传输系统平行多匝线圈空间位置与效率分析  

Analysis of the relationship between coil position and efficiency in wireless power transmission

作　　者：张晋勇[1] 麦晓冬[1] 关曼清 邱怡怡 

机构地区：[1]广东轻工职业技术学院信息技术学院,广东广州510300

出　　处：《电子设计工程》2018年第3期76-80,共5页Electronic Design Engineering

基　　金：广东省公益研究与能力建设重点项目(2014B010106004);广东省大学生科技创新培育专项(pdjh2016b0555);广东省高等学校优秀青年教师培养计划项目(YQ2015172)

摘　　要：针对无线电能传输系统中负载线圈空间错位而导致的效率下降问题,提出了互感线圈解耦的无线充电系统功率、效率计算方法。该方法首先利用线圈的互感式解耦后建立了Bessel函数与Struve函数的无线充电系统功率与效率数学模型,之后利用数值积分的方法计算线圈空间位置与系统功率、效率的关系,最后,通过实验验证了该互感线圈解耦的无线充电系统功率与效率计算方法。实验结果表明,该方法计算出的数据与实验数据误差小于5%。该方法可以计算出有效的充电范围,为解决因水平错位导致的充电系统功率与效率下降问题提供了有利依据。In actual use process,the efficiency of wireless power transfer system will be declined caused by the horizontal malposition between receiving coils and source coils.In order to solve this problem,the efficiency physical modal based on mutual inductance coil decoupling is proposed in this article,which is established with Bessel function and the deformed Struve function.The relationship between Coil position and Efficiency was simulated using numerical integration in software Matlab.An experiment platform was also set up to verify the physical model.The results show that the experiment results are in agreement with the simulation results,and the efficiency physical modal can solve the problem of the low efficiency caused by horizontal displacement.

关 键 词：无线电能传输 磁耦合谐振 互感 效率 

分 类 号：TM724[电气工程—电力系统及自动化]