CN201733096U

CN201733096U - Controllable saturable reactor

Info

Publication number: CN201733096U
Application number: CN2010201069618U
Authority: CN
Inventors: 刘金旭; 杨高; 李争光; 肖祖旺; 邓曙光
Original assignee: 712th Research Institute of CSIC
Current assignee: 712th Research Institute of CSIC
Priority date: 2010-01-29
Filing date: 2010-01-29
Publication date: 2011-02-02
Anticipated expiration: 2020-01-29

Abstract

The utility model relates to a controllable saturable reactor suitable for reactors used as dynamic reactive power compensation devices, shunt reactors, adjustable inductive reactive loads and the like. The saturable reactor comprises a reactor body and an external control circuit, wherein the reactor body comprises an iron core and windings; the iron core comprises an upper iron yoke, a lower iron yoke and six iron core columns; the six iron core columns ranked in a line are fixed and connected by the upper and the lower iron yokes; a winding divided into an upper part and a lower part is mounted on each iron core column; the lower end of the upper part of one winding of each phase is connected with the upper end of the lower part of the other winding in a crossed way; a tap is connected with the external control circuit; and the external control circuit is formed by a silicon-controlled thyristor and a diode. The saturable reactor has the advantages that as the six iron core columns are ranked in a line, the saturable reactor has a steady structure, saves materials and has high economical performance; as multiple saturated sections are formed on the iron core columns, the saturable reactor has the good output characteristic; and as the windings are ranked in sequence, the saturable reactor can effectively restrain harmonic waves of the windings, reduce vibration noises, reduce loss, and achieve full-range power regulation from 1 percent to 100 percent.

Description

A kind of controllable transducer

Technical field

The utility model relates to a kind of controllable transducer, is suitable for use as reactor, shunt reactor, adjustable perceptual reactive load of dynamic reactive compensation device etc.

Background technology

In the prior art, for solving the Stability Analysis of Structures problem of reactor as dynamic reactive compensation device, shunt reactor, adjustable this class saturable reactor of perceptual reactive load, be generally stereochemical structure, promptly 6 iron core column are divided two rows, three iron core column of every row, connect by ferromagnetic material between two rows, exist the three-phase winding coupled bigger, the big harmonic wave of output, problems such as winding current potential skewness cause phenomenons such as the increase of reactor noise, loss sharp increase, core interior local overheating, power regulating range be narrow.

Summary of the invention

The purpose of this utility model is, overcome the shortcoming of prior art, solve the coupled problem of each winding, a kind of interchange magnetic circuit that makes winding inside and dc circuit magnetic loop equiblibrium mass distribution are provided, effectively suppress a series of problems that triple-frequency harmonics brings, a kind of controllable transducer that reduces the inner harmonic wave of winding, balance winding built-in potential.

The technical solution of the utility model is:

A kind of controllable transducer, it comprises reactor body and external control circuit: described reactor body is made up of iron core and winding; Described iron core is made up of upper yoke and lower yoke and 6 iron core column; Described 6 iron core column " one " word arrangement is fixedlyed connected with lower yoke by upper yoke; A winding is installed on each iron core column, and this winding is divided into two parts up and down; 1st, the winding on 6 iron core column composes in parallel a phase, and the winding on the 2nd, 5 iron core column composes in parallel a phase, and the winding on the 3rd, 4 iron core column composes in parallel a phase, totally 3 phases, 3 mutually between triangle connect or Y-connection; The lower end on the top of two windings of every phase and the upper end interconnection of lower part; Described external control circuit is made up of the silicon controlled crystal brake pipe and the diode of the DC excitation electric current that is used for regulating winding; Winding top on each iron core column and/or lower part centre tap connect silicon controlled crystal brake pipe; The closure that connects silicon controlled crystal brake pipe on 6 windings is that positive and negative alternate is arranged; Be connected with fly-wheel diode between every phase two lower ends, winding top and the upper end, lower part.

Further scheme is:

Described controllable transducer, its each iron core column is provided with saturated section; The ferromagnetic material and the insulating material of this saturated section part alternately laminate, and saturated section effective ferromagnetic material sectional area is less than the iron core column sectional area.

Described controllable transducer, its winding top winding and bottom winding all have tap.

Described controllable transducer, its winding top winding has tap.

Described controllable transducer, its winding bottom winding has tap.

The utlity model has significant technique effect:

1,6 iron core column " " word arrangement, Stability Analysis of Structures is saved material, good economy performance;

2, iron core column is established saturated section of multistage, good output;

3, winding is arranged in order, can effectively suppress winding harmonic wave, reduction vibration noise, attenuating loss, wide, realization 1～100% FR power adjustments of adjustable extent.

Description of drawings

Fig. 1 is the utility model controllable transducer iron core and winding assembling schematic diagram;

Fig. 2 is the utility model controllable transducer circuit theory winding diagram;

Fig. 3 is the utility model controllable transducer schematic diagram.

The name of each mark is called among the figure: the 1-iron core; The 2-winding; The 3-iron core column; The 4-upper yoke; The 5-lower yoke; Saturated section of 6-; A1, A2-A phase assembly; B1, B2-B phase assembly; C1, C2-C phase assembly; KA1, KA2, KB1, KB2, KC1, KC2-silicon controlled crystal brake pipe; DA, DB, DC-diode.

Embodiment

It is as follows that the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:

Embodiment 1: as Figure 1-3, a kind of controllable transducer, it has a reactor body and external control circuit: described reactor body is made up of iron core 1 and winding 2; Described iron core 1 is made up of upper yoke 4 and

lower yoke

5 and 6 iron core column 3; Described 6 iron core column, 3 " one " word arrangements are fixedlyed connected with lower yoke 5 by upper yoke 4; A winding 2 is installed on each iron core column 3, and this winding 2 is divided into two parts up and down; Shown in Fig. 2,3, the winding 2 on the 1st, 6 iron core column composes in parallel a phase, and the winding 2 on the 2nd, 5 iron core column composes in parallel a phase, 3rd, the winding 2 on 4 iron core column composes in parallel a phase, totally 3 phases, i.e. A phase, B phase, C phase, triangle connects between 3 phases, also can be Y-connection; Wherein A has assembly A1, A2 mutually, and B has assembly B1, B2 mutually, and C has assembly C1, C2 mutually; Described assembly, for example assembly A1 is made up of iron core column and the winding on it; Shown in Fig. 1,3, winding is pressed A1, B2, C1, C2, B1, A2 sequence arrangement; Shown in Fig. 2,3, the lower end on the top of two windings 2 of every phase and the upper end interconnection of lower part; Described external control circuit is made up of silicon controlled crystal brake pipe KA1, KA2, KB1, KB2, KC1, KC2 and continuous diode DA, DB, the DC of the DC excitation electric current that is used for regulating winding; Winding 2 tops on each iron core column 3 are connected silicon controlled crystal brake pipe with the lower part centre tap; Present embodiment winding 2 top windings and bottom winding all have tap.The closure that connects silicon controlled crystal brake pipe on 6 windings 2 is that positive and negative alternate is arranged; Be connected with fly-wheel diode between every phase two winding lower ends, 2 top and the upper end, lower part.Described controllable transducer, its each iron core column 3 is provided with saturated section 6; The ferromagnetic material and the insulating material of this saturated section 6 part alternately laminate, and saturated section 6 effective ferromagnetic material sectional area is less than iron core column 3 sectional areas.

Embodiment 2: as different from Example 1, its winding 2 top windings have tap.

Embodiment 3: as different from Example 1, its winding 2 bottom windings have tap.

Protection range of the present utility model is not limited to the foregoing description.

Claims

1. a controllable transducer is characterized in that, it comprises reactor body and external control circuit:

Described reactor body is made up of iron core (1) and winding (2); Described iron core (1) is made up of upper yoke (4) and lower yoke (5) and 6 iron core column (3); Described 6 iron core column (3) " one " word arrangement is fixedlyed connected with lower yoke (5) by upper yoke (4); A winding (2) is installed on each iron core column (3), and this winding (2) is divided into two parts up and down; 1st, the winding (2) on 6 iron core column (3) composes in parallel a phase, 2nd, the winding (2) on 5 iron core column (3) composes in parallel a phase, 3rd, the winding (2) on 4 iron core column (3) composes in parallel a phase, totally 3 phases (A, B, C), 3 mutually between triangle connect or Y-connection; The lower end on the top of two windings of every phase (2) and the upper end interconnection of lower part;

Described external control circuit is made up of the silicon controlled crystal brake pipe and the diode of the DC excitation electric current that is used for regulating winding; Winding (2) top on each iron core column (3) and/or lower part centre tap connect silicon controlled crystal brake pipe; The closure that connects silicon controlled crystal brake pipe on 6 windings (2) is that positive and negative alternate is arranged; Be connected with fly-wheel diode between every phase two windings (2) lower end, top and the upper end, lower part.

2. controllable transducer according to claim 1 is characterized in that, each iron core column (3) is provided with saturated section (6); The ferromagnetic material and the insulating material of these saturated section (6) part alternately laminate, and saturated section (6) effective ferromagnetic material sectional area is less than iron core column (3) sectional area.

3. controllable transducer according to claim 1 is characterized in that, described winding (2) top winding and bottom winding all have tap.

4. controllable transducer according to claim 1 is characterized in that, described winding (2) top winding has tap.

5. controllable transducer according to claim 1 is characterized in that, described winding (2) bottom winding has tap.