Cascade type electric field induction power supplying circuit

Abstract

The invention discloses a cascade type electric field induction power supplying circuit, belonging to the technical field of online monitoring equipment of an electric power system. The cascade type electric field induction power supplying circuit comprises an induction energy-obtaining circuit, a multi-winding transformer and an energy storage and micro-power consumption DC-DC circuit, which are cascaded with one another sequentially; the induction energy-obtaining circuit is capable of charging an energy-obtaining capacitor by means of displacement current generated by a high-voltage electric field between a metal induction electrode and the earth; the multi-winding transformer is capable of transferring the energy obtained by the energy-obtaining capacitor to an energy storage capacitor; and the energy storage and micro-power consumption DC-DC circuit is capable of converting the voltage of the energy-storage capacitor into the stable voltage grade required by an electric appliance. The power supplying circuit obtains energy by means of the high-voltage electric field of the induction transformer, belongs a self-powered system and does not need an additional power supply; the higher the voltage grader is, the more the obtained energy is; and the cascade type electric field induction power supplying circuit is applicable to a high / ultrahigh system.

Description

technical field [0001] The invention belongs to the technical field of on-line monitoring equipment for power systems, and in particular relates to a cascaded electric field induction power supply circuit. Background technique [0002] There are two power supply methods for the existing high-voltage equipment on-line monitoring equipment: independent energy acquisition and transmission power supply. The transmission power supply method mainly transmits energy from the ground to the online measurement device through media such as optical fiber or microwave, but the main disadvantage of this energy supply method is that it is expensive. The main technical solutions for autonomous power supply include: (1) battery power supply: this method has stable energy supply, but the disadvantage is that it needs regular power outages to replace batteries, and the power system does not allow frequent power outages; (2) current coil power supply: this scheme mainly The current coil instal...

AI Technical Summary

Problems solved by technology

Therefore, in view of the deficiency that the average power of the energy harvesting in the single-stage induction power supply in the patent "A device for on-line measurement and wireless transmission of isolating switch contact temperature using electric field induction power supply" with the publication number 102879117A, a new method is proposed. Cascaded high-voltage induction electric field energy harvesting technology based on the principle of discharge method

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