Omnidirectional wireless charging of battery-free drones in a novel wireless charging chamber

Abstract

Wireless power transmission (WPT) technology has been applied in various fields due to its flexibility and convenience, especially magnetically coupled wireless power transmission technology has been applied to consumer electronics, in- dustrial robots and electric vehicles. For indoor drones, wireless charging can improve their work efficiency and save time wasted by frequent takeoffs and landings. Therefore, applying WPT technology to this field is of great signifi- cance for saving costs and improving the utilization rate of drones. In magnet- ically coupled wireless power transmission technology, the quality of the power transmission system is affected by many factors, such as coil structure, coil material, control strategy and compensation network circuit structure, etc. This paper will study the circuit structure of the compensation network in the con- text of space WPT technology, and combine the rotating voltage control strategy to explore the output characteristics of two typical compensation networks, and verify whether the conclusion is correct through simulation.