A Lightweight Bidirectional Wireless Energy Carrier Without Drone-Side Compensation and Ferrite for Devices in Inaccessible Places

This is the authors' abstract. We don't add key points for this paper.

The power supply issue for electrical devices in harsh and dangerous environments is challenging. This letter proposes a power supply solution using drones as an energy carrier to charge such devices. The drone is wirelessly charged at the ground-side station and then flies to the target place to charge the devices wirelessly. To achieve a compact and lightweight structure, the helical coupler is designed without compensation components and ferrite on the drone side. Thus, a drone-side uncompensated bidirectional wireless charging system is formed. Compensation capacitors and inductors are employed on the ground side to achieve zero phase angle. The antioffset performance and the constant-voltage output characteristic of the system are investigated. The experimental results verified that the proposed approach can be a competitive solution for charging devices in inaccessible places.