Research on robot wireless charging system based on constant-voltage and constant-current mode switching

Energy Reports

Jing Xiao¹  Wenlan Gong²  Shaonan Chen³  Xiaorui Wu³  Ning Wu³  Shuai Han³ 

[1] Southern Power Grid Corporation Wireless Power Transmission Joint Laboratory Guangxi Power Grid Co., Ltd., No. 6-2, Minzhu Road, Nanning, 530023, China;Corresponding author.;Southern Power Grid Corporation Wireless Power Transmission Joint Laboratory Guangxi Power Grid Co., Ltd., No. 6-2, Minzhu Road, Nanning, 530023, China;

关键词: Wireless power transfer;    Constant current constant voltage two stage charging;    LCC-S/LCC;    Topology switching;   

DOI  :  

来源: DOAJ

【 摘 要 】

The traditional wired charging of robot has the disadvantages of inconvenient charging and manual operation for electrical connection. With the continuous development of radio power transmission, the disadvantages of wired charging are overcome, and the charging process does not need manual intervention. At present, a single compensation network is often used to charge the robot wirelessly, but the single compensation network only has constant current or constant voltage output capability. When the constant voltage or constant current mode is switched in the charging process, additional DC–DC​ circuit is needed for control, which increases the difficulty of system design and system volume, and the control is also more complex. In this paper, based on the robot wireless charging system, a coupling mechanism which can switch topology is designed. The LCC-S/ LCC compensation network is used. In the charging process, the constant current and constant voltage charging mode is switched by switching the compensation network at the receiving end, which simplifies the design difficulty, volume and control method of the system. Finally, an experimental platform is built, and the experimental results verify the feasibility of the proposed topology and control method.

【 授权许可】

Unknown