Inductive electricity obtaining device of high-voltage transmission line

Abstract

The invention discloses an inductive electricity obtaining device of a high-voltage transmission line. The inductive electricity obtaining device of the high-voltage transmission line comprises an equivalent power obtaining coil, a rectifying and voltage-stabilizing module, an overcurrent protecting module and a load matching module, wherein the equivalent power obtaining coil comprises nanocrystalline magnetic core power obtaining coils, which are connected in parallel. A plurality of wound and encapsulated nanocrystalline magnetic core power obtaining coils with fixed number of turns are connected in parallel to be used as a power obtaining magnetic core; each nanocrystalline magnetic core power obtaining coil is provided with a fixed iron core sectional area, number of turns of the coil, an average length of a magnetic path and an inner wire resistor R. The winding directions of all nanocrystalline magnetic core power obtaining coil are the same, so that the induced secondary currents are the same in phase. The inductive electricity obtaining device of the high-voltage transmission line, provided by the invention, is capable of increasing an effective magnetic core area by using a plurality of nanocrystalline magnetic core power obtaining coils, which are connected in series; under the circumstance that when a primary current is low, the power obtaining efficiency is improved and the output power is increased by increasing the number of the magnetic cores connected in parallel. At the same time, the electric transmission lines, which can obtain electricity through induction of a current sensor, are greatly increased and then the applicability of the device is improved.

Description

technical field [0001] The invention belongs to the field of power supply of power transmission line monitoring equipment, and in particular relates to a high-voltage transmission line induction power-taking device. Background technique [0002] With the rapid development of the national economy, all walks of life have an increasing demand for electricity, and the requirements for power quality (stability, uninterruptibility, etc.) And the safety and stability of supporting equipment is particularly important. As the complexity of the transmission system increases and the number of protection and monitoring devices increases, the demand for DC power in the middle of the line increases. The voltage level requirements of this type of power supply are not high, but the requirements for uninterrupted power supply reliability are relatively high. At present, most of the power supply is powered by solar energy or wind-solar hybrid technology. Use solar energy plus storage batte...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high lower limit dead zone and low output power of the existing current sensor inductive energy harvesting technology, the present invention provides an induction power harvesting device for high-voltage transmission lines. When the primary current is small, by adding parallel The number of magnetic cores achieves the purpose of improving energy extraction efficiency and increasing output power

Images