High voltage induction energy fetching power supply and method for obtaining power from high voltage line

A technology of energy extraction and high-voltage induction, applied in circuits, transformers, inductors, etc., can solve the problems of low conversion efficiency of solar cells, limited energy, and restricted applications.

Inactive Publication Date: 2009-05-27
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is environmentally friendly and energy-saving, but the disadvantage lies in the instability of the power supply, which is affected by factors such as light intensity, external environment

Method used

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  • High voltage induction energy fetching power supply and method for obtaining power from high voltage line
  • High voltage induction energy fetching power supply and method for obtaining power from high voltage line

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Line current induction energy harvesting The energy for power supply comes from the high-voltage line, and the energy harvesting is completed through a magnetic ring wound with a coil and worn on the high-voltage line. At present, the problems that need to be solved urgently in this power supply method include: 1) providing stable output under the condition of wide range variation of line current; 2) long-term stable operation with low heat consumption.

[0027] In recent years, there have been many reports at home and abroad on the research on line current sensing energy harvesting and power supply. It is required that the high-voltage side electronic equipment can work under the condition that the current of the high-voltage line is small. The energy-taking magnetic core can be made by selecting magnetic materials with hi...

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Abstract

The invention provides a high-voltage inductive energy acquiring power supply and a method for acquiring the power supply from a high-voltage wire. The high-voltage inductive energy acquiring power supply comprises an energy acquiring unit for inducing a first electromotive force from the high-voltage wire, a compensating unit for inducing a second electromotive force different from the first electromotive force from the high-voltage wire and reversely compensating a part of the first electromotive force through the second electromotive force to finally balance output voltage, a surge protection unit connected to the energy acquiring unit and the compensating unit respectively, a rectifying filter unit connected to the surge protection unit and used for converting alternating current acquired by the energy acquiring unit and the compensating unit together into direct current and filtering the direct current, and a voltage reducing and stabilizing unit for stabilizing output voltage of the rectifying filter unit and reducing the stabilized voltage to be proper constant pressure output. Through introducing a compensating coil, the method uses difference of initial permeability of different magnetic materials to generate different electromotive forces to be reversely counteracted, so as to achieve wide-range compensation, output steady power, simplify circuits and reduce heat consumption.

Description

technical field [0001] The invention relates to the field of high-voltage power supply, in particular to a high-voltage induction energy harvesting power supply and a method for obtaining power from a high-voltage line for power supply. Background technique [0002] When conducting online monitoring of the status of power plants, substations and transmission and distribution lines, the power supply problem of high-voltage side electronic equipment has become a major obstacle hindering the development of this technology. Because the electronic equipment used for signal sensing and information transmission is located on the high-voltage side, it cannot be powered by a conventional power supply. [0003] At present, the power supply methods on the high-voltage side that are widely used include: battery power supply, line current induction power supply, capacitor voltage division energy power supply, laser power supply, and solar power supply. [0004] (1) Battery powered [0...

Claims

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Application Information

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IPC IPC(8): H02J17/00H01F38/14H02M7/12H02M1/32H01F41/02H02J50/10
Inventor 梁明李跃李光权任燕王赟陈海彬
Owner 梁明
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