基于LCC-S补偿的双通道无线电能传输系统研究  

Research on Two-channel Wireless Power Transfer System Based on LCC-S Compensation

作　　者：张帆[1] 王军华[1] 牟建学 蔡昌松[1] ZHANG Fan;WANG Jun-hua;MOU Jian-xue;CAI Chang-song(Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学电气与自动化学院,湖北武汉430072

出　　处：《电力电子技术》2021年第6期70-73,共4页Power Electronics

基　　金：国家重点研发计划(2017YFB1201002)。

摘　　要：无线电能传输(WPT)技术由于其便捷、安全的特点,目前已被应用在多个领域。但因各种受电端所需功率等级不同,不同WPT系统在电源设计、线圈设计等方面都不相同。此处提出了一种双通道WPT系统,每个通道均采用LCC-S补偿拓扑,其具有恒压输出特性,并在接收端进行串联连接。首先对LCC-S的恒压输出特性进行分析,其次针对两通道间输出电压可能存在的相位及幅值差提出了对应的控制方式,最后搭建实物平台,进一步验证了理论分析的结果。最终所搭建的双通道WPT系统实现了 159 W的功率输出,效率可达82.9%。该系统可推广至多通道WPT系统,针对不同功率等级只需增减通道的连接数量即可实现。Due to its convenience and safety,wireless power transfer(WPT)technology has been applied on many fields.However,different power levels are required by various power receiving units,WPT systems are different in power design and coil design.A two-channel WPT system is proposed,each channel adopts LCC-S compensation topology,which has a constant voltage output characteristic.It is connected in series at the receiving end.Firstly,the constant voltage output characteristic of LCC-S is analyzed.Secondly,the corresponding control method is proposed for the possible phase and amplitude difference of the output voltage between the two channels.Finally,an experimental platform is built to further verify the results of the theoretical analysis.Two-channel WPT system is built to achieve an output power of 159 W and an efficiency of 82.9%.The system can be extended to a multi-channel WPT system,which can be realized by increasing or decreasing the number of channels connected for different power levels.

关 键 词：无线电能传输 双通道系统 补偿 

分 类 号：TM724[电气工程—电力系统及自动化]