Energy supply system of on-line monitoring device on high-voltage transmission tower

Abstract

The invention relates to an energy supply system of an online monitoring device on a high-voltage transmission tower. The system comprises a wire CT energy taking unit, a laser energy transmission unit and an energy storage voltage stabilization unit which are connected in sequence. The wire CT energy taking unit is installed on a power transmission line body and comprises a secondary induction current processing loop, the secondary induction current processing loop is connected with a laser generator of the laser energy transmission unit, and the laser energy transmission unit comprises a laser generator, an energy transmission optical fiber and a photocell unit which are connected in sequence. The energy transmission optical fiber is arranged in an insulator, two optical fiber connectorsare respectively led out from the two sides of the insulator, a high-voltage side connector is connected with the laser generator, and a low-voltage side connector is connected with the photocell unit. The photocell unit receives the light energy outputted by the energy transmission optical fiber and converts the light energy into electric energy through a photoelectric effect. The energy supplysystem is stable and reliable in energy supply and long in service life and is capable of meeting the continuous energy supply requirement of higher-power online monitoring equipment.

Description

technical field [0001] The invention belongs to the field of high-voltage power transmission, and relates to a technology for monitoring the operation of high-voltage power transmission line equipment, in particular to an energy supply system for an online monitoring device on a high-voltage power transmission iron tower. Background technique [0002] At present, the sensors on the main body of the transmission line and the iron tower are mostly powered by solar panels, micro-wind generators, and batteries. The above-mentioned methods all face problems such as unstable energy supply and short life. Some scholars proposed to use electrostatic induction to arrange plates on the iron tower, relying on the capacitance between the line body and the plates to obtain energy, but faced with the problems of too small power and too large area of ​​the plates. Some scholars have proposed to use the induction current technology to directly obtain stable electric energy from the transmis...

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Problems solved by technology

[0002] At present, the sensors on the main body of the transmission line and the iron tower are currently powered by solar panels, micro-wind generators, batteries, etc., all of which are faced with problems such as unstable energy supply and short service life.

Some scholars proposed to use electrostatic induction to arrange the plates on the iron tower, relying on the capacitance between the line body and the plates to obtain energy, but faced with the problem of too small power and too large plate area

Some scholars have proposed to use the induction current technology to directly obtain stable electric energy from the transmission line body, but still face the difficulty of obtaining energy and transferring it to a low potential (on the iron tower)

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