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On-line energy harvesting system for ice melting device of ultra-high voltage four-split conductor transmission line

A transmission line, four-split technology, applied in emergency protection circuit devices, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve the problem of large variation range, small energy supply power, capacitive load Overshoot and other problems, to achieve the effect of low cost, simple structure and high reliability

Active Publication Date: 2016-03-23
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

5) Using the above mixed function methods, the online energy harvesting circuit through the electromagnetic coupling of the current transformer coil is simple and the cost is low, but the difficulty in its application is that the current of the transmission line is unstable and the range of variation is very large
The laser energy supply performance is stable, but the structure is complex, the energy supply power is small, the cost is high, the laser life is short, and the cost of the laser itself is high and the transmission power is strictly limited. If the number of optical fibers is increased, the cost will inevitably increase
The energy supply method of rechargeable batteries has problems such as low battery conversion efficiency and battery aging, and the reliability is difficult to guarantee
There is also a common problem in the above-mentioned several methods, that is, for capacitive loads, it is easy to cause overshoot of the capacitive load, resulting in failure

Method used

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  • On-line energy harvesting system for ice melting device of ultra-high voltage four-split conductor transmission line
  • On-line energy harvesting system for ice melting device of ultra-high voltage four-split conductor transmission line
  • On-line energy harvesting system for ice melting device of ultra-high voltage four-split conductor transmission line

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Embodiment Construction

[0023] figure 1 It is a block diagram of the present invention, figure 2 It is the schematic circuit diagram of the present invention, image 3 It is a structural schematic diagram of the four-split wire intelligent ice-melting device of the present invention. As shown in the figure, the present invention provides an online energy harvesting system for an ultra-high voltage four-split wire transmission line ice-melting device, including The energy transformer of the bus bar and the power supply module electrically connected to the secondary side of the energy transformer; the energy transformer is a current transformer;

[0024] The power supply includes at least a rectifier circuit electrically connected to the secondary side of the energy transformer, a first voltage stabilization module electrically connected to the output end of the rectification circuit, and a second voltage stabilization module electrically connected to the output end of the first voltage stabilization...

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Abstract

The invention provides an online energy acquiring system used for an ultrahigh voltage quad-bundled conductor power transmission line de-icing device. The online energy acquiring system comprises an energy acquiring transformer arranged on a bus bar of the de-icing device and a power module electrically connected with the secondary side of the energy acquiring transformer. The power module at least comprises a rectification circuit electrically connected with the secondary side of the energy acquiring transformer, a first voltage stabilization module electrically connected with the output end of the rectification circuit and a second voltage stabilization module electrically connected with the output end of the first voltage stabilization module, wherein the first voltage stabilization module supplies power to a controller of the de-icing device, and the second voltage stabilization module supplies power to a circuit breaker of the de-icing device. The online energy acquiring system can achieve three-path output, it is guaranteed that power can be supplied to the controller and the circuit breaker of the de-icing device at the same time, stable electric energy can be provided, and thus it is guaranteed that the intelligent de-icing device can keep working stably, and total absence of human intervention is achieved.

Description

technical field [0001] The invention relates to an energy harvesting device, in particular to an on-line energy harvesting system used for an ice-melting device for an ultra-high voltage four-split wire transmission line. Background technique [0002] Ice disasters occur in winter memory, resulting in ice covering high-voltage power transmission lines. Increased icing leads to an increase in line load, and in severe cases, it may even cause major accidents such as transmission line disconnection and tower collapse that affect the safe operation of the power system, causing large-scale power outages in the power grid, seriously affecting people's production and life, and causing huge social and economic losses. . [0003] The existing deicing of the icing of the transmission line is mainly on-site manual deicing or mechanical deicing with the participation of electric power personnel. Since the above two methods have their own shortcomings, people have gradually proposed int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/10H02M1/14H02M3/06H02H9/06H02H3/22H02J5/00
Inventor 舒立春张志劲蒋兴良梁健胡琴洪敏胡建林
Owner CHONGQING UNIV
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