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Controlled reactor with compensation winding

A technology for compensating windings and reactors, applied in variable inductors, inductors, variable transformers, etc., can solve the problems that reactors cannot be applied to high-voltage products and high-voltage power grids, and achieves suppression of power frequency and operation. Effects of overvoltage, improved stability and safety, and reduced line loss

Active Publication Date: 2009-12-16
TBEA SHENYANG TRANSFORMER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The research on controllable reactors began in the 1950s, and various types of controllable reactors, such as turn-adjusting type, air-gap adjusting type, high-impedance transformer type, and phase-controlled type, have appeared successively. To a certain extent, but most of them cannot be applied to high-voltage power grids. In order to solve this problem, most of the magnetically controlled reactors studied at present adopt a structure with a small section section on the iron core column, and the coil has a tap. In practice, this kind of reactor is felt. Structured reactors cannot be used in high voltage products

Method used

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Effect test

Embodiment 1

[0040] Such as figure 2 Shown is a three-phase system composed of three single-phase reactors, H in each phase 13 、H 14 The grid side winding adopts a parallel structure, the head end is connected to the transmission line, the tail end is connected to a small reactor, the small reactor is grounded, and the compensation winding B 15 , B 16 There are two sets of coils in each single-phase magnetic circuit to form a series connection. The first ends a, b, and c of the series connection are connected to the input terminals of the transformer in the rectification and filtering device, and the ends of the series connection are connected to another single-phase coil. The two groups of coils set in the magnetic circuit are connected in series connection points. Control winding K 17 、K 18 The series structure is adopted, and the single-phase windings in series are connected in parallel with each other, one end of which is connected in parallel with the series resistance, and the ...

Embodiment 2

[0042] Such as Figure 4 Shown is a three-phase system composed of three single-phase reactors, the H of each phase 13 、H 14 The grid-side winding adopts a two-coil series structure, and the compensation winding B 15 , B 16 There are two sets of coils in each single-phase magnetic circuit to form a series connection. The first ends a, b, and c of the series connection are connected to the input terminals of the transformer in the rectification and filtering device, and the ends of the series connection are connected to another single-phase coil. The two groups of coils set in the magnetic circuit are connected in series connection points. Control winding K 17 、K 18 A series structure is adopted. The three-phase grid side windings are respectively connected to the three-phase transmission line, the a, b, and c terminals of the compensation winding are respectively connected to the input terminals of the rectification and filtering device 2, and the output terminals of the...

Embodiment 3

[0044] Such as Figure 6 Shown is a three-phase system composed of three single-phase reactors, the H of each phase 19 The grid-side winding adopts a single-coil structure, and the compensation winding B 15 , B 16 There are two sets of coils in each single-phase magnetic circuit to form a series connection. The first ends a, b, and c of the series connection are connected to the input terminals of the transformer in the rectification and filtering device, and the ends of the series connection are connected to another single-phase coil. The two groups of coils set in the magnetic circuit are connected in series connection points. Control winding K 17 、K 18 A series structure is adopted. The series-connected single-phase windings are connected in parallel with each other, one end of which is connected in parallel with the series resistance, and the neutral point of the series resistance is grounded, and the other ends d and e are connected with the DC output end of the rect...

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Abstract

A controllable reactor with compensatory winding relates to main body that is made up by oil box, magnetic core pole inside of it, left and right side magnet yokes, up and down magnet yokes, winding of magnetic core pole and all kinds of sensor for detecting all species of parameters. The controllable reactor with compensatory winding relates to rectifying and filtering equipment, detecting equipment for detecting electrical network parameter and control unit. The net-side winding, compensate winding and control winding set on the magnetic core pole from outside to inside. Net-side winding connects with transmit electricity circuitry, compensate winding connects with input end of rectifying and filtering equipment, and control winding connects with output end of rectifying and filtering equipment. The control unit connects with end boxes of all kinds of sensor signal, controllable silicon inside of rectifying and filtering equipment and output end of detecting equipment. The inputting of detecting equipment joints with transmitting electricity circuitry and changes reactance value and capability of reactor by changing control winding excitation current.

Description

technical field [0001] The invention relates to a reactor, in particular to a controllable reactor with a compensation winding for providing a three-phase power supply for a rectifying and filtering device. Background technique [0002] The research on controllable reactors began in the 1950s, and various types of controllable reactors, such as turn-adjusting type, air-gap adjusting type, high-impedance transformer type, and phase-controlled type, have appeared successively. To a certain extent, but most of them cannot be applied to high-voltage power grids. In order to solve this problem, most of the magnetically controlled reactors studied at present adopt a structure with a small section section on the iron core column, and the coil has a tap. In practice, this kind of reactor is felt. Reactors with this structure cannot be used in high voltage products. Contents of the invention [0003] Aiming at the problems existing in the prior art, the object of the present inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F29/08H01F27/24H01F27/28H02P13/00
Inventor 安振赵静
Owner TBEA SHENYANG TRANSFORMER GRP CO LTD