Experimental study demonstrates stable wireless power transfer and high efficiency in misaligned unmanned aerial vehicles, suggesting reliable autonomous recharging.
Key Points
To develop a hybrid control strategy using DC-link regulation and switched capacitor compensation that maintains stable output voltage and improves efficiency in drone wireless charging systems under misalignment.
Implemented a hybrid control strategy integrating a boost power factor correction converter for DC-link voltage regulation and a switched capacitor to compensate dynamically for self-inductance variations at a fixed operating frequency.
Constructed a 500-W experimental prototype to test performance under horizontal offsets up to 200 mm and vertical offsets up to 62 mm.
Ensured stable output voltage and near-unity power factor across horizontal misalignments of up to 200 mm and vertical gaps up to 62 mm.
Achieved a peak power transfer efficiency of 91.9% during varying coupling conditions.