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Magnetic Reactor

A magnetically controlled reactor and reactor technology, applied in the direction of electrical components, output power conversion devices, and conversion equipment that can be converted to DC without intermediate conversion, can solve the problems of increasing equipment cost and manufacturing complexity, and achieve The effect of fast excitation

Inactive Publication Date: 2016-09-14
北京三得普华科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another way is to increase the response speed by adding an additional set of windings. However, this method increases the cost and manufacturing complexity of the equipment, and is not an ideal choice.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] figure 1 is the circuit schematic diagram of the magnetron reactor provided in this embodiment, such as figure 1 As shown, the magnetron reactor of the present invention includes: a reactor winding and a rectifier bridge circuit, and the output end of the rectifier bridge circuit is directly connected with the coil in the reactor winding to form a loop.

[0022] The reactor winding includes two iron cores, each of which is wound with two sets of coils. One iron core has coils LA and LD, and the other iron core has coils LB and LC. The outgoing end of the coil LA is connected with the incoming end of the coil LB, the outgoing end of the coil LC is connected with the incoming end of the coil LD, and the four sets of coils are in a cross-parallel structure. Each of the iron cores has a set of coils with first taps on them, a first tap 5 is drawn from the outgoing end of the coil LA, a first tap 6 is drawn out from the outgoing end of the coil LC, and the first tap 5 is co...

Embodiment 2

[0038] Figure 4 is the circuit schematic diagram of the magnetron reactor provided in this embodiment, such as Figure 4 As shown, the magnetron reactor of the present invention includes: a reactor winding, a forced shut-off circuit HS and a rectifier bridge circuit. The only difference from the first embodiment is that this embodiment also includes a forced shut-off circuit HS, which is connected between the output end of the rectifier bridge circuit and the coil of the reactor winding, and the forced shut-off circuit HS is used for fast switching. During demagnetization, the current output by the rectifier bridge circuit is disconnected, so that the current passing through the coil is rapidly reduced, and the iron core is rapidly demagnetized.

[0039] Figure 5 is a circuit schematic diagram of a forced shutdown circuit HS provided in this embodiment, such as Figure 5 As shown, the forced shutdown circuit HS includes a controllable device HS1, a controllable device HS2...

Embodiment 3

[0046] Image 6 is the circuit schematic diagram of the magnetron reactor provided in this embodiment, such as Image 6 As shown, the magnetron reactor of the present invention includes: a reactor winding, a forced shut-off circuit HS and a rectifier bridge circuit. The only difference from the second embodiment is that the reactor winding used in this embodiment is a non-fast common reactor winding body, and the specific form of the reactor winding is not limited in the present invention.

[0047] Compared with the second embodiment, the reactor winding of this embodiment also leads out the second tap 1 in the middle of the coil LA, and leads out the second tap 3 in the middle of the coil LD, and there is a controllable connection between the second tap 1 and the second tap 3. The device MS1, leads a second tap 2 in the middle of the coil LC, leads a second tap 4 in the middle of the coil LB, and a controllable device MS2 is connected between the second tap 2 and the second ...

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PUM

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Abstract

The invention relates to a magnetically-controlled reactor. The magnetically-controlled reactor comprises the following components of: a reactor winding which includes iron cores and coils of which the current magnitude is utilized to change the magnetic flux of the iron cores, wherein the coils are wound around the iron cores; and a rectifier bridge circuit of which the output end is connected with the coils in the reactor winding. Work current generated by the rectifier bridge circuit is applied to the coils, such that fast excitation of the iron cores can be realized, and therefore, the capacity of the magnetic flow of the iron cores can be increased fast. With the magnetically-controlled reactor adopted, fast demagnetization can be realized, and tap voltage and an additional excitation winding are not needed to be increased.

Description

technical field [0001] The invention relates to a reactive power compensation reactor device, in particular to a magnetron reactor. Background technique [0002] Magnetically Controlled Reactor (MCR), as a type of static reactive power compensation device, originated from magnetic amplifier and saturable reactor, but it is essentially different from saturable reactor in structure and performance. The technology of magnetron reactor was a breakthrough in the former Soviet Union and was introduced into China at the end of the last century. It has the advantages of high reliability, low loss, small footprint, small harmonic pollution, and easy control. It is widely used in mines, In industries such as metallurgy and electric power, it has become the main choice to replace thyristor-controlled reactors. [0003] The basic working principle of the magnetron reactor is that the magnetic flux on the iron core can be changed by controlling the DC current in the winding of the react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P13/00H02J3/18
CPCY02E40/30
Inventor 王志泳
Owner 北京三得普华科技有限责任公司
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