谐振式无线电能传输系统负载特性的分析与优化  

Analysis and optimization of load characteristics of resonant wireless power transmission system

作　　者：孔繁博 周士贵 马云霄 KONG Fanbo;ZHOU Shigui;MA Yunxiao(College of Engineering,Qufu Normal University,276826,Rizhao,Shandong,PRC)

机构地区：[1]曲阜师范大学工学院

出　　处：《曲阜师范大学学报（自然科学版）》2019年第4期65-70,共6页Journal of Qufu Normal University(Natural Science)

基　　金：山东省自然科学基金(ZR2014EEM013);大学生创新创业项目(201910446144)

摘　　要：研究谐振式无线电能传输系统的电阻负载特性以及对传输效率和输出功率的优化方案.在耦合系数、工作频率一定的前提下,通过理论推导得到传输效率、输出功率与系统负载关系.研究表明,谐振式无线电能传输系统的最大传输效率与最大输出功率所对应的系统负载之间存在最佳负载值,它是改善系统输出功率和传输效率的有效途径.最后,搭建一个小功率谐振式无线电能传输系统平台,实验结果与理论分析结论相一致.This article mainly studies the resistive load characteristics of resonant wireless power transmission systems and the optimization scheme for transmission efficiency and output power.Under the premise of a certain coupling coefficient and working frequency,the relationship between transmission efficiency,output power and system load is obtained through theoretical derivation.Research shows that there is an optimal load value between the maximum transmission efficiency of the resonant wireless power transmission system and the system load corresponding to the maximum output power,which is an effective way to improve the system output power and transmission efficiency.Finally,a low-power resonant wireless power transmission system platform is built,and the experimental results are consistent with the theoretical analysis.

关 键 词：谐振式无线电能传输 耦合系数 传输效率 输出功率 最佳负载 

分 类 号：TM724[电气工程—电力系统及自动化]