无线电能传输磁耦合系统损耗优化  

Loss Optimization of Magnetic Coupling System for WPT

作　　者：王聪[1] 陈庆彬[1] 杨丰钢 邓小龙 WANG Cong;CHEN Qingbin;YANG Fenggang;DENG Xiaoong(Schoolof Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学电气工程与自动化学院,福州350108

出　　处：《电源学报》2023年第3期108-116,共9页Journal of Power Supply

基　　金：国防科工局重点资助项目(B0202);福建省自然科学基金资助项目(2019J01251);晋江市福大科教园区发展中心科研资助项目(2019-JJFDKY-47)。

摘　　要：在不含磁芯的无线电能传输WPT(wireless power transmission)系统中,由磁耦合系统引起的损耗是系统损耗的主要组成部分之一,而磁耦合系统的损耗由接收线圈、发射线圈的电阻以及流经收发线圈的电流所决定。结合串/串S/S(series/series)补偿拓扑无线电能传输的电路响应特性,分析磁耦合系统的线圈感量、线圈电阻与线圈匝数的关系,提出了根据发射、接收线圈电流工况调整收发线圈匝数的磁耦合系统线圈匝数组合优化设计方案。绕制3组不同匝数组合的收发线圈(含优化匝数组合及两组对照匝数组合线圈)用以验证优化方案的可行性。仿真及实验结果均表明:在相同工况下,优化组合方案的线圈总损耗均低于对照组,且整体样机的效率均高于对照组。The loss caused by a magnetic coupling system is one of the main components of system loss in a wireless power transmission(WPT)system without magnetic core.The loss of the magnetic coupling system is determined by the resistance of receiving and transmitting coils and the current flowing through these coils.Based on the circuit response characteristics of WPT with a series/series(S/S)compensation topology,the relationship among coils inductance,coils resistance and coil turns of the magnetic coupling system is analyzed,and an optimized design scheme for coil turns combination of the magnetic coupling system is proposed,which adjusts the turn number of receiving and transmitting coils according to the systemr s current conditions.To verify the feasibility of the optimized scheme,three groups of receiving and transmitting coils with different combinations of turns(including optimized coil turns combination and two groups of control coils)were made.Simulation and experimental results show that the total coils loss of the optimized combination scheme was lower than that of control groups under the same operation conditions,and the efficiency of the overall prototype was higher than that of control groups.

关 键 词：无线电能传输 磁耦合系统 串/串补偿 线圈优化 

分 类 号：TM46[电气工程—电器]