A Bidirectional AGV Wireless Charging System Capable of Vehicle-to-Vehicle Wireless Charging with Shared Bridge Arms

In industrial scenarios, if one automatic guided vehicle (AGV) can be used as an energy supply to charge another AGV, the application will be more flexible. A multistage and multimode vehicle-to-vehicle (V2V) wireless power transfer (WPT) system is proposed to allow energy flow among multiple AGVs. The proposed system is divided into four operating modes, namely One to One, One to Two, Two to One, and Relay Mode. In the proposed V2V WPT system, bridge arms are shared for different modes. A mathematical model and an experimental prototype are developed. The experimental results are in good agreement with the theoretical ones, which shows the feasibility of the proposed system, which provides a novel solution for the V2V wireless charging system. The system efficiency can reach up to 94.7%. The maximum power can reach 2400 W.