CN104505238A - Equivalent air gap adjustable reactor - Google Patents
Equivalent air gap adjustable reactor Download PDFInfo
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- CN104505238A CN104505238A CN201510019484.9A CN201510019484A CN104505238A CN 104505238 A CN104505238 A CN 104505238A CN 201510019484 A CN201510019484 A CN 201510019484A CN 104505238 A CN104505238 A CN 104505238A
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- 238000004804 winding Methods 0.000 claims abstract description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 4
- 230000005291 magnetic effect Effects 0.000 description 14
- 230000004907 flux Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
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Abstract
The invention discloses an equivalent air gap adjustable reactor. The equivalent air gap adjustable reactor comprises an iron core, an alternating current working winding and a plurality of groups of direct current equivalent air gap windings. The iron core is of a closed ring structure, a rectangular coordinate system is established with the central point of the iron core serving as an origin, both sides of the iron core is symmetrical along the Y-axis, the alternating current working winding is wound on the middle portion of the left side of the iron core, the middle portion of the right side of the iron core is provided with a plurality of pairs of holes symmetrically arranged on both sides of the X axis, a group of direct current equivalent air gap windings is wound on the adjacent two holes, and all the groups of direct current equivalent air gap windings are oppositely connected to one another in series and wound in the X-axis direction or the Y-axis direction. The equivalent air gap adjustable reactor uses the local saturation phenomenon produced by controlling the intensity of the direct current as equivalent air gap to replace a mechanical unit for controlling the air gap, thereby simplifying the structure of the iron core, reducing the response time of the reactor, ensuring the reactance linearity of the reactor and obtaining a large adjustment range.
Description
Technical field
What the present invention relates to is a kind of reactor, is specifically related to a kind of effective air gap Regulatable reactor.
Background technology
In high pressure and supergrid, the object of reactive power compensation supports electrical network pivot point voltage, improves the stability of electrical network, increase multi-line power transmission ability and reduce line loss, suppresses power oscillation and the power-frequency overvoltage of electrical network, pressure regulation and Optimum Reactive Power Flow etc.Reactive balance is the important guarantee of power grid security, stable, economical operation, especially true for superhigh pressure long distance powedr transmission net.Research proves, its capacity of Regulatable reactor not only can change with the size of through-put power, the reactive power of level and smooth regulating system, realize flexible transmission, power frequency and switching overvoltage can also be suppressed, reduce line loss, thus greatly can improve stability and the fail safe of system, therefore Regulatable reactor has remarkable effect for raising power system operation performance.
Common Regulatable reactor has turn adjusting controllable reactor, regulating the qi flowing in the channels gap Size Formula controlled reactor, thyristor controlled reactor and saturable reactor.And the controlled reactor be most widely used has two classes: the thyristor-controlled reactor (TCR) in thyristor controlled reactor, the magnetic valve type reactor (MCR) in saturable reactor.In recent years due to power electronic fast-developing thyristor-controlled reactor thus be used widely, although thyristor-controlled reactor reaction speed is fast, technology is more ripe, but cost is high, difficult in maintenance, harmonic pollution is comparatively serious, and large-scale application is still subject to many limitations; Its manufacturing process of magnetic valve type controllable reactor is simple, with low cost, reliability is high, reactor magnetic valve type main core within the scope of whole capacity regulating is in ferromagnetic linear zone all the time, it is saturated close to the limit that magnet valve place can design, therefore the reactor linearity is better, and harmonic wave unshakable in one's determination is approximately the half of thyristor-controlled reactor.But because its capacity reaches the limit values, so magnetic valve type controllable reactor capability of overload is poor.
Adjust void dimension reactor to adopt electric structure to drive power transmission shaft to control the size of air gap, the change of air gap causes the change of magnetic flux in iron core, thus reaches the object continuously changing Working winding reactance value.The iron core being similar to transformer is had although the same with MCR, there is higher stability and reliability, and reactance adjustable range is large, harmonic wave is less, but slower than MCR and TCR owing to adopting mechanical device to control void dimension response speed, so be not given sufficient attention and apply always.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of effective air gap Regulatable reactor, the direct current in direct current effective air gap winding is regulated to control the size of air gap with alternative mechanical device, at guarantee reactor while linear and adjustable range, the reliability of raising reactor and response speed.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of effective air gap Regulatable reactor, comprises iron core 1, alternate current operation winding 2 and some groups of direct current effective air gap windings; Described unshakable in one's determination 1 is the loop configuration closed, and with the central point of iron core 1 for initial point sets up rectangular coordinate system, the both sides of unshakable in one's determination 1 are symmetrical with Y-axis; Alternate current operation winding 2 is wound with in the middle part of iron core 1 on the left of Y-axis, be provided with some to hole 4 unshakable in one's determination in the middle part of iron core 1 on the right side of Y-axis, paired hole unshakable in one's determination is symmetricly set on X-axis both sides, adjacent two holes unshakable in one's determination are wound with one group of direct current effective air gap winding, differential concatenation between each group direct current effective air gap winding; In the X-axis direction with in Y direction, the spacing in adjacent two holes unshakable in one's determination is equal; Direct current effective air gap winding is all along X-direction or all along Y direction coiling.
Further, X-direction is provided with 2n and arranges hole unshakable in one's determination, n is natural number.
Further, described hole unshakable in one's determination 4 is square hole or circular hole.
Further, the hole unshakable in one's determination 4 that described some compositions are right is 2 groups or 4 groups.
Further, described unshakable in one's determination 1 be overrided to form by electrical steel sheet.
Beneficial effect: a kind of effective air gap Regulatable reactor provided by the invention:
1), alternate current operation winding and direct current effective air gap winding share an iron core, enormously simplify structure unshakable in one's determination, reduce silicon steel material consumption.
2), due to direct current effective air gap winding only producing magnetic flux in iron core local makes local unshakable in one's determination saturated, and local saturation effect can regard effective air gap as.Substitute mechanical device with the effective air gap of DC control and control air gap, improve reliability and the response speed of equipment.
3), adopt many group direct current effective air gap winding differential concatenations, reduce the alternating current voltage component responded in direct current effective air gap winding, thus reduce alternating current voltage component DC power supply is affected.
4), alternate current operation winding and direct current effective air gap winding without electrical connection, avoid grid side high voltage, big current to the impact of control loop between the two, improves the reliability of reactor.
5), adopt independent DC power supply to the direct current effective air gap winding power in effective air gap Regulatable reactor, therefore wiring is simple.The reactance of reactor is only relevant with direct current effective air gap winding, controls simple.
Accompanying drawing explanation
Fig. 1 is four hole effective air gap Regulatable reactor schematic diagrames;
Fig. 2 is octal effective air gap Regulatable reactor schematic diagram;
Fig. 3 is square hole effective air gap Regulatable reactor schematic diagram;
Fig. 4 is four hole effective air gap Regulatable reactor direction of winding schematic diagrames;
Fig. 5 is octal effective air gap Regulatable reactor direction of winding schematic diagram;
Fig. 6 is square hole effective air gap Regulatable reactor direction of winding schematic diagram;
Have in figure: iron core 1, alternate current operation winding 2, direct current effective air gap winding 3, hole unshakable in one's determination 4, local flux 5, crossbeam 6, lateral column 7.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment one:
A kind of structural representation of effective air gap Regulatable reactor of the present invention as shown in Figure 1, comprises iron core 1, alternate current operation winding 2 and some groups of direct current effective air gap windings; Described unshakable in one's determination 1 is the loop configuration closed, and with the central point of iron core 1 for initial point sets up rectangular coordinate system, the both sides of unshakable in one's determination 1 are symmetrical with Y-axis; Alternate current operation winding 2 is wound with in the middle part of iron core 1 on the left of Y-axis, be provided with some to hole 4 unshakable in one's determination in the middle part of iron core 1 on the right side of Y-axis, paired hole unshakable in one's determination is symmetricly set on X-axis both sides, adjacent two holes unshakable in one's determination are wound with one group of direct current effective air gap winding, differential concatenation between each group direct current effective air gap winding; In the X-axis direction with in Y direction, the spacing in adjacent two holes unshakable in one's determination is equal; Direct current effective air gap winding is all along X-direction or all along Y direction coiling.Coiling up and down as shown in Figure 4 or left and right coiling, be namely expressed as two groups of direct current effective air gap winding: 3A and 3B; Differential concatenation between each group of direct current effective air gap winding.In Fig. 1, dash area is expressed as local flux 5 sphere of circulation, the local produced is saturated regards effective air gap as: because when passing through direct current in direct current effective air gap winding, unshakable in one's determination 1 has local around side, hole 4 unshakable in one's determination to produce Flux saturation, the current amplitude passed through is larger, Flux saturation degree is higher, namely magnetic permeability is less, until close to the magnetic permeability of air, so the size of current passed through in direct current effective air gap winding can be regarded as the adjustable length air gap of equivalence; Effect is: by regulating the size of effective air gap, can control the whole magnetic resistance of unshakable in one's determination 1, because the magnetic resistance of main flux with main magnetic circuit is inversely proportional to, so namely control the size of main flux.
Embodiment two:
The structural representation of a kind of effective air gap Regulatable reactor of the present invention as shown in Figure 2, is compared embodiment structure and is left eight circle holes 4 unshakable in one's determination for being wound around four groups of direct current effective air gap windings, to produce evenly effective air gap.Fig. 5 is embodiment two, four groups of direct current effective air gap windings: 5A, 5B, 5C and 5D.Four direct current effective air gap winding mode differential concatenation connections as shown in Figure 5, winding mode has multiple combination, and Fig. 5 provides wherein two kinds of winding modes, and the principle of coiling is that the interchange magnetic potential responded in four groups of direct current effective air gap windings cancels each other.In Fig. 2, dash area is local flux 5 sphere of circulation, and the local of generation is saturated regards effective air gap as.
Embodiment three:
A kind of structural representation of effective air gap Regulatable reactor of the present invention as shown in Figure 3, compare 1 side unshakable in one's determination in embodiment structure and leave the identical hole 4 square unshakable in one's determination longitudinally arrangement of two groups of sizes, being wherein positioned at this middle prescription shape hole 4 unshakable in one's determination is zero with the vertical range of X-axis; Namely middle core hole 4 sectional area after merging is the twice of upper iron core hole 4 sectional area or lower hole unshakable in one's determination 4 sectional area.One group of direct current effective air gap winding is around on adjacent hole 4 square unshakable in one's determination, namely needs two groups of direct current effective air gap windings.If middle two square holes 4 unshakable in one's determination separately, the magnetic flux produced due to the winding mode of direct current effective air gap winding between square hole unshakable in one's determination 4 is between two cancelled out each other, and magnetic flux is zero, is equivalent to not exist.Two groups of direct current effective air gap windings are around on the crossbeam 6 between square hole unshakable in one's determination 4, connected mode 6A, the 6B of two groups of direct current effective air gap windings as shown in Figure 6.In Fig. 3, dash area is local flux 5 sphere of circulation, and the local of generation is saturated regards effective air gap as.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. an effective air gap Regulatable reactor, is characterized in that: comprise iron core (1), alternate current operation winding (2) and some groups of direct current effective air gap windings; Described iron core (1) is the loop configuration closed, and is that initial point sets up rectangular coordinate system with the central point of (1) unshakable in one's determination, and the both sides of (1) unshakable in one's determination are symmetrical with Y-axis; Iron core (1) middle part on the left of Y-axis is wound with alternate current operation winding (2), iron core (1) middle part on the right side of Y-axis is provided with some to hole unshakable in one's determination (4), paired hole unshakable in one's determination is symmetricly set on X-axis both sides, adjacent two holes unshakable in one's determination are wound with one group of direct current effective air gap winding, differential concatenation between each group direct current effective air gap winding; In the X-axis direction with in Y direction, the spacing in adjacent two holes unshakable in one's determination is equal; Direct current effective air gap winding is all along X-direction or all along Y direction coiling.
2. a kind of effective air gap Regulatable reactor according to claim 1, it is characterized in that: X-direction is provided with 2n and arranges hole unshakable in one's determination, n is natural number.
3. a kind of effective air gap Regulatable reactor according to claim 1, is characterized in that: described hole unshakable in one's determination (4) is square hole or circular hole.
4. a kind of effective air gap Regulatable reactor according to claim 1, is characterized in that: the right hole unshakable in one's determination (4) of described some compositions is 2 groups or 4 groups.
5. a kind of effective air gap Regulatable reactor according to claim 1, is characterized in that: described iron core (1) is overrided to form by electrical steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019484.9A CN104505238B (en) | 2015-01-14 | 2015-01-14 | A kind of effective air gap REgulatable reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510019484.9A CN104505238B (en) | 2015-01-14 | 2015-01-14 | A kind of effective air gap REgulatable reactor |
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| CN104505238A true CN104505238A (en) | 2015-04-08 |
| CN104505238B CN104505238B (en) | 2017-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115579219A (en) * | 2022-11-10 | 2023-01-06 | 广东光达电气股份有限公司 | Variable inductance reactor and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2889700B2 (en) * | 1994-03-04 | 1999-05-10 | マレルコ パワー システムズ インコーポレイテッド | Electrically controllable inductor |
| CN2453528Y (en) * | 2000-12-06 | 2001-10-10 | 肖应琼 | Linear reactance for electric motor soft starting and control |
| CN202332551U (en) * | 2011-07-28 | 2012-07-11 | 新华都特种电气股份有限公司 | Novel cross magnetization direct current magnetism-assisting adjustable reactor |
| WO2012126884A2 (en) * | 2011-03-18 | 2012-09-27 | Electricite De France | Series voltage regulator with electronics protected against short-circuits by magnetic circuit-based decoupling using holes and windows |
| JP2014175396A (en) * | 2013-03-07 | 2014-09-22 | Fdk Corp | DC reactor |
| CN104124040A (en) * | 2013-04-25 | 2014-10-29 | 台达电子工业股份有限公司 | Magnetic core and magnetic element applying same |
-
2015
- 2015-01-14 CN CN201510019484.9A patent/CN104505238B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2889700B2 (en) * | 1994-03-04 | 1999-05-10 | マレルコ パワー システムズ インコーポレイテッド | Electrically controllable inductor |
| CN2453528Y (en) * | 2000-12-06 | 2001-10-10 | 肖应琼 | Linear reactance for electric motor soft starting and control |
| WO2012126884A2 (en) * | 2011-03-18 | 2012-09-27 | Electricite De France | Series voltage regulator with electronics protected against short-circuits by magnetic circuit-based decoupling using holes and windows |
| CN202332551U (en) * | 2011-07-28 | 2012-07-11 | 新华都特种电气股份有限公司 | Novel cross magnetization direct current magnetism-assisting adjustable reactor |
| JP2014175396A (en) * | 2013-03-07 | 2014-09-22 | Fdk Corp | DC reactor |
| CN104124040A (en) * | 2013-04-25 | 2014-10-29 | 台达电子工业股份有限公司 | Magnetic core and magnetic element applying same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115579219A (en) * | 2022-11-10 | 2023-01-06 | 广东光达电气股份有限公司 | Variable inductance reactor and preparation method thereof |
| CN115579219B (en) * | 2022-11-10 | 2023-09-15 | 广东光达电气股份有限公司 | Variable inductance reactor and preparation method thereof |
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| CN104505238B (en) | 2017-06-23 |
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