A Three-Bridge IPT System for Different Power Levels Conversion under CC/CV Transmission Mode

Electronics

Xiangtian Deng¹  Guorong Zhu¹  Bingyang Luo¹  Ming Li¹  Jianghua Lu¹  Yatao Shou¹ 

[1] School of Automation, Wuhan University of Technology, Wuhan 430000, China;

关键词: inductive power transfer (IPT);    three-bridge switching;    constant current (CC);    constant voltage (CV);    fixed frequency;   

DOI  :  10.3390/electronics8080884

来源: DOAJ

【 摘 要 】

This paper proposes an inductive power transfer (IPT) system with three-bridge switching compensation topology. With the proposed IPT topology, the equivalent circuit and the resonant condition are analyzed to achieve the load-independent constant current (CC) and load-independent constant voltage (CV) outputs. On this basis, multiple power levels can be achieved under CC/CV conditions by bridge arm switching, which makes it possible to complete charging tasks for multiple power level electric vehicles (EV) without switching the IPT system. A circuit simulation was built to verify the different power level switching effects of the structure. A 3.3 kW IPT system was designed to verify the proposed structure. At the rated output power, the experimental efficiency was up to 92.04% and 91.21% in CC and CV output modes, respectively.

【 授权许可】

Unknown