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孙川,王春芳.寻轨机器人用无线充电系统的研究[J].电源学报,2018,16(6):137-142
寻轨机器人用无线充电系统的研究
Research on Wireless Charging System for Line Follower Robot
投稿时间:2016-09-22  修订日期:2018-07-06
DOI:10.13234/j.issn.2095-2805.2018.6.137
中文关键词:  寻轨机器人  无线充电  单管逆变  感应耦合电能传输  软开关
英文关键词:line follower robot  wireless charging  single-switch inversion  inductively coupled power transfer(ICPT)  soft switch
基金项目:
作者单位E-mail
孙川 青岛大学自动化与电气工程学院, 青岛 266071  
王春芳 青岛大学自动化与电气工程学院, 青岛 266071 qduwcf@163.com 
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中文摘要:
      传统寻轨机器人的动力电池采用接触式充电方式,充电时容易因机械接触磨损而导致接触不良。为解决该问题,研究了一种单管感应耦合电能传输ICPT(inductively coupled power transfer)无线充电系统。该系统由前后两级电路组成,前级采用单管ICPT系统进行非接触电能传输,后级采用充电管理芯片LTC4020控制的Buck-Boost电路对锂电池进行快速充电。介绍了所研究寻轨机器人无线充电系统结构及原理,对前级主电路进行了四阶段电路等效、工作过程分析、电路建模、补偿网络设计和软开关设计;对后级充电管理电路进行分析和设计。设计了一台样机,对前级电路开关管耐压、流过电流和输出电压进行了仿真和实验,并通过充电实验验证了所研究充电方案的正确性。
英文摘要:
      The power battery used in a traditional line follower robot adopts a contact charging mode. Therefore, the robot will easily get contact defect during charging because of mechanical wear. To solve this problem, a type of single-switch inductively coupled power transfer(ICPT) wireless charging system is studied in this paper. This system adopts a two-stage topology:the single-switch ICPT system is used on the preceding stage to achieve contactless power transfer, while the Buck-Boost circuit controlled by the charging management chip LTC4020 is used on the post stage to realize quick-charging for the lithium battery. The circuit structure and principle of wireless charging system for the line follower robot are introduced. For the main circuit on the preceding stage, four-stage circuit equivalence, analysis of operation process, circuit modeling, design of compensation network, and design of soft switching are performed; afterwards, the charging management circuit on the post stage is analyzed ad designed. Finally, a prototype was designed, and simulations and experiments on the maximum voltage of the switch, current, and output voltage were conducted for the circuit on the preceding stage; in addition, the proposed charging scheme was verified through battery charging experiments.
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