Airborne energy storage reverse wireless power supply system and power supply method for UAV

Abstract

The invention relates to the technical field of wireless power transmission, in particular to an airborne energy storage reverse wireless power supply system and power supply method of an unmanned aerial vehicle. The reverse wireless power supply system comprises the unmanned aerial vehicle, low-power power receiving equipment, a transmitting unit and a receiving unit, wherein the transmitting unit is arranged on the unmanned aerial vehicle; the receiving unit is arranged on the low-power power receiving equipment; the transmitting unit comprises an airborne battery, a DC / DC converter, an inverter, a primary side compensation circuit, a transmitting coil, an intensifier coil, a current detection module connected with a controller and the transmitting coil, a drive circuit connected with the controller and the inverter, and a power control module connected with the controller and the DC / DC converter; the airborne battery, the DC / DC converter, the inverter, the primary side compensation circuit, the transmitting coil and the intensifier coil are sequentially connected; the receiving unit comprises a receiving coil, a secondary side compensation circuit, a rectifier and filter circuit and a battery which are sequentially connected; the intensifier coil and the transmitting coil are concentric and are located in the same plane; and the transmitting coil and the receiving coil are parallel and coaxial. According to the system, the middle-long range transmission efficiency is strengthened; and a wireless charging system has higher robustness and relatively low environmental electromagnetic radiation characteristics.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission, and in particular relates to an onboard energy storage reverse wireless power supply system and a power supply method of an unmanned aerial vehicle. Background technique [0002] Wireless power supply technology mainly realizes non-contact power transmission through electromagnetic induction, electromagnetic resonance, radio frequency, microwave and laser. According to the different power supply distances of wireless power transmission in space, the forms of wireless power transmission can be divided into three categories: short-range, medium-range and long-range. [0003] Among them, the one realized by electromagnetic induction power transfer technology (ICPT) belongs to short-range transmission. ICPT mainly uses a magnetic field as the medium, uses transformer coupling, and induces current through the primary and secondary coils. Electric energy can be transmitted through...

AI Technical Summary

Problems solved by technology

The laser has strong directionality and energy concentration, and there is no risk of interfering with communication satellites, but obstacles will affect the energy exchange between the laser and the receiving device, and the beam energy will be partially lost during transmission

[0006] With the continuous advent of various high-tech products, small-power devices such as infrared cameras and temporary communication base stations are installed on the top of the mountain or in the woods. There is a large demand for power supply, and normal power supply facilities often cannot reach the location of the equipment.

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