基于BUCK降压和红外通信的电动自行车无线充电系统输出功率控制方法  

Output power control method for electric bicycle wireless charging systems based on BUCK circuit and infrared communication

作　　者：王杰[1] 高星冉 邓其军[1] Wang Jie;Gao Xingran;Deng Qijun(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学电气与自动化学院,武汉430072

出　　处：《电测与仪表》2020年第23期92-100,共9页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金面上项目(51677139)。

摘　　要：由于安全性和便捷性的优势,电动自行车户外无线充电越来越成为人们的迫切需求。充电的过程中,需要根据车载蓄电池的充电曲线对传输功率进行控制。为实现高效、可控的电动自行车无线充电,文中提出了一种基于BUCK降压和红外通信的功率调节方法。其中,红外通信用以将接收端蓄电池的电气信息反馈到发射端控制器,发射端通过BUCK降压电路调节交流电源的电压幅值,从而调节系统的输出功率。接收端BUCK用以在传输距离突变时对电池充电进行保护。在设定好蓄电池的充电电压限值和电流限值这两个参数后,系统能够自动按照蓄电池的充电曲线进行充电。同时,对于充电过程中传输距离的变化也能够快速响应。Due to the virtues of safety and convenience,outdoor wireless charging for electric bicycle has been an emerging necessity for citizens.However,the transfer power needs to be regulated to meet the charging curves of the electric bicycle-mounted batteries during the charging process.In order to realize efficient and controllable wireless charging for electric bicycles,a power regulating method based on BUCK circuit and infrared communication is proposed in this paper.The infrared link is used to feed the charging state of battery back to the controller of transmitter,while the BUCK circuit at the transmitting side is used to regulate the voltage amplitude of the AC driving source,thus regulating the output power of the system.The BUCK circuit at the receiving side is used to protect the battery from the sudden change of transfer distance.After setting the two parameters of charging voltage limit and charging current limit,the battery can be charged automatically according to its charging curve using the proposed method.Moreover,the proposed method can also realize fast response to distance variation during the charging process.

关 键 词：无线输电 电感耦合 电动自行车 输出功率控制 红外通信 

分 类 号：TM933[电气工程—电力电子与电力传动]