Abstract
In this work, an advanced drone battery charging system is developed. The system is composed of a drone charging station with multiple power transmitters and a receiver to charge the battery of a drone. Resonance inductive coupling-based wireless power transmission technique is used. With limits of wireless power transmission in inductive coupling, it is necessary that the coupling between a transmitter and receiver must be strong for efficient power transmission but for a drone, it is normally hard to land it properly on a charging station or a charging device to get maximum coupling for efficient wireless power transmission. Normally some sensors are used to align the transmitter and receiver for proper coupling but in this system, a novel method based on Hill climbing algorithm is proposed to control the coupling between the transmitter and a receiver without using any sensor. The feasibility of the proposed algorithm is checked using MATLAB. A practical test bench is developed for the system and several experiments are conducted under different scenarios. The system is fully automatic and works well to eliminate the poor landing and coupling effect which hinders the efficient wireless power transmission.
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