System and method for induction electricity taking of high-voltage line

Abstract

The invention belongs to the field of electric power system, and provides a system and a method for induction electricity taking of a high-voltage line. A load current detection module detects the load current, and outputs an electric signal indicating the load current; a microcontroller outputs a path switching signal according to the load current; an electricity taking path switching module switches electricity taking paths; two types of iron core winding mutual inductors with different magnetic permeabilities are adopted, so that a high-magnetic-permeability mutual inductor unit can be energized when the load of an inductive transmission line is small and the magnetic field energy around a conducting wire is weak; and a low-magnetic-permeability mutual inductor unit can be de-energized when the line loads high current. By using the system and the method, the problem of energization when a high-magnetic-permeability mutual inductor is saturated and cannot perform linear output is solved, the problem that low-current electricity taking and high-current electricity taking of the conventional energizing device cannot be realized at the same time is solved, and the problems of electromagnetic saturation caused by high changing current and unstable power supply caused by long-time cloudy and rainy weather in the prior art are solved; moreover, the power supply reliability is high, and the practicability is strong.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a system and a method for inductively picking up electricity from a high-voltage line. Background technique [0002] Power transmission and distribution lines have the characteristics of complex line topology, complex environmental conditions, and complex fault phenomena. If a detection device can be installed on the line, the problem can be solved to a great extent. The traditional method is to use large-area solar energy and induction power. However, This method will cause unstable power supply problems due to electromagnetic saturation caused by large changing currents and long-term rainy weather. Contents of the invention [0003] The present invention provides a system and method for inductive power harvesting of high-voltage lines, aiming to solve the problem of electromagnetic disturbances caused by large current changes when the traditional line detection device...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a system and method for inductive power harvesting of high-voltage lines, aiming to solve the problem of electromagnetic disturbances caused by large current changes when the traditional line detection device uses large-area solar power harvesting combined with induction power harvesting. Saturated and long-term rainy weather, there will be problems of unstable power supply and low reliability

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