Stable high-voltage induction electricity taking device and method

Abstract

The invention discloses a stable high-voltage induction electricity taking device, which comprises an induction electricity taking module, an electric energy conditioning module and a charging and discharging management module, wherein the induction electricity taking module comprises a high-voltage transmission line, a current mutual inductance magnetic core, a secondary coil, a sampling resistorand a single-pole double-throw relay; the electric energy conditioning module comprises a rectifying circuit, a bleeder circuit, a filter capacitor and a voltage stabilizing circuit; the charging anddischarging management module comprises a single-chip microcomputer control circuit and a charging and discharging circuit; the sampling resistor, the rectifying circuit, the bleeder circuit, the filter capacitor, the voltage stabilizing circuit and the charging and discharging circuit are connected in parallel; the single-pole double-throw relay is arranged between the sampling resistor and therectifying circuit; and the output end of the single-chip microcomputer control circuit is connected with the two ends of the charging and discharging circuit. The stability of the secondary side of acurrent transformer is guaranteed through cooperation of the charging and discharging management circuit and the single-chip microcomputer control circuit, and it is guaranteed that voltage and current at the two ends of a load do not fluctuate greatly.

Description

technical field [0001] The invention relates to the field of high-voltage electricity, in particular to a stable high-voltage induction power-taking device and method. Background technique [0002] With the development of the economy, people's living standards are improving day by day. At the same time, the people have put forward higher requirements for the quality of power supply and higher standards for the reliability of power supply. Therefore, realizing the automation of power distribution network is the key to the development of power supply network. The inevitable trend. Among them, fault detection of transmission lines and timely feedback are of great importance and urgency to realize distribution network automation, and auxiliary monitoring equipment used for fault detection of transmission lines often requires a stable low-voltage power supply. At present, there are mainly two types of low-voltage power supply on the transmission line. One is powered by solar pho...

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