Electric field coupling singlet line electric energy transmission system based on negative resistor

Abstract

The invention discloses an electric field coupling singlet line electric energy transmission system based on a negative resistor. The system comprises a negative resistor, a radiating circuit, a receiving circuit, a load, and a single insulation wire, wherein the negative resistor is connected with the radiating circuit, the receiving circuit is connected with the load, and the single insulation wire is connected with the radiating circuit and the receiving circuit. The radiating circuit comprises a primary side electrical inductance, a primary side metallic conductor and a radiating circuit internal resistor, wherein the primary side electrical inductance, the primary side metallic conductor and the radiating circuit internal resistor are connected in series; the receiving circuit comprises a secondary side electrical inductance, a secondary side metallic conductor and a receiving circuit internal resistor, wherein the secondary side electrical inductance, the secondary side metallicconductor and the receiving circuit internal resistor are connected in series; the primary side metallic conductor and the secondary side metallic conductor generate displacement current to the groundor other surrounding conductive objects, and the displacement current of the primary side metallic conductor and the secondary side metallic conductor are respectively represented as primary side equivalent capacitance and secondary side equivalent capacitance; the electric energy transmission is achieved between the radiating circuit and the receiving circuit by the means of electric field coupling between the primary metallic conductor and the secondary side metallic conductor. According to the electric field coupling singlet line electric energy transmission system based on the negative resistor, the structure is simpler, the working efficiency is higher, the constant transmission efficiency can be achieved within a long distance, and the system electric energy transmission is more stable.

Description

technical field [0001] The present invention relates to the technical field of wireless power transmission, in particular to an electric field coupled single-wire power transmission system based on negative resistance. Background technique [0002] The traditional wired power transmission method has obvious disadvantages due to the need for a large number of metal wires and tedious wiring projects: there may be exposure, wear, insulation aging, etc., and it is easy to generate spark discharge, which seriously affects the safe operation of equipment, and is subject to harsh conditions. Environmental factors such as external corrosion and pollutants are greatly affected, so it is difficult to achieve safe and reliable power supply in some extreme working environments; in addition, due to the constraints of multiple wires, power supply in complex terrain and remote areas becomes difficult. The flexibility of the electric device is greatly reduced. In order to solve the limitat...

AI Technical Summary

Problems solved by technology

[0002] The traditional wired power transmission method has obvious disadvantages due to the need for a large number of metal wires and tedious wiring projects: there may be exposure, wear, insulation aging, etc., and it is easy to generate spark discharge, which seriously affects the safe operation of equipment, and is subject to harsh conditions. Environmental factors such as external corrosion and pollutants are greatly affected, so it is difficult to achieve safe and reliable power supply in some extreme working environments; in addition, due to the constraints of multiple wires, power supply in complex terrain and remote areas becomes difficult. The flexibility of electrical installations is greatly reduced

In high-power applications, bridge inverters composed of IGBT and MOSFET tubes are often used, and different soft-switching algorithms are used to achieve power transmission, but its operating frequency is low and the transmission distance is short.

Therefore, restricted by factors such as power switching tubes and circuit topology, it is still quite difficult to realize high-frequency (above MHz), high reliability, and high-power switching converters under the existing technical conditions.

In addition, the transmission efficiency of the traditional electric field coupled single-wire power transmission system is greatly affected by the transmission distance, and usually decreases greatly with the increase of the distance, which is not conducive to the practical application of the system

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