CN104505238B - A kind of effective air gap REgulatable reactor - Google Patents
A kind of effective air gap REgulatable reactor Download PDFInfo
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- CN104505238B CN104505238B CN201510019484.9A CN201510019484A CN104505238B CN 104505238 B CN104505238 B CN 104505238B CN 201510019484 A CN201510019484 A CN 201510019484A CN 104505238 B CN104505238 B CN 104505238B
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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 16
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 description 16
- 230000004907 flux Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses a kind of effective air gap REgulatable reactor, including unshakable in one's determination, alternate current operation winding and some groups of direct current effective air gap windings;Iron core is the loop configuration of closing, and rectangular coordinate system is set up by origin of central point unshakable in one's determination, and both sides unshakable in one's determination are symmetrical with Y-axis;Middle part unshakable in one's determination on the left of Y-axis is wound with alternate current operation winding, middle part unshakable in one's determination on the right side of Y-axis is provided with some to hole unshakable in one's determination, paired hole unshakable in one's determination is symmetricly set on X-axis both sides, and one group of direct current effective air gap winding, differential concatenation between each group direct current effective air gap winding are wound with adjacent two holes unshakable in one's determination;Direct current effective air gap winding is along X-direction or along Y direction coiling.The present invention substitutes mechanical device and controls air gap to simplify core construction with controlling DC current size to produce local saturated phenomenon to regard effective air gap as, reduces the response time of reactor, while ensureing reactor reactance value linearly, and has larger adjustable range.
Description
Technical field
The present invention relates to a kind of reactor, and in particular to a kind of effective air gap REgulatable reactor.
Background technology
In high pressure and supergrid, the purpose of reactive-load compensation is support power network pivot point voltage, improves the steady of power network
It is qualitative, increase multi-line power transmission ability and reduce line loss, suppress the oscillation of power and power-frequency overvoltage of power network, pressure regulation and optimization nothing
Work(trend etc..Reactive balance is the important guarantee of power grid security, stabilization, economical operation, outstanding for super-pressure long distance powedr transmission net
Its is such.Research has shown that, REgulatable reactor its capacity can not only change with the size of transimission power, smooth regulating system
Reactive power, realize flexible transmission, can also suppress power frequency and switching overvoltage, line loss is reduced, so as to can carry significantly
The stability and security of system high, therefore REgulatable reactor has remarkable effect for improving Operation of Electric Systems performance.
Common REgulatable reactor has turn adjusting controllable reactor, regulating the qi flowing in the channels gap Size Formula controlled reactor, SCR control
Reactor and saturable reactor.And the controlled reactor being most widely used has two classes:Brilliant lock in thyristor controlled reactor
Magnetic valve type reactor (MCR) in management and control reactor (TCR), saturable reactor.In recent years due to the quick hair of power electronic
, so as to be used widely, although thyristor-controlled reactor reaction speed is fast, technology is more ripe for exhibition thyristor-controlled reactor,
But cost is high, difficult in maintenance, harmonic pollution is more serious, large-scale application is still subject to many limitations;Magnetic valve type controllable reactance
Its manufacturing process of device is simple, with low cost, reliability is high, and main core is all the time in the range of whole capacity regulating for reactor magnetic valve type
In ferromagnetic linear zone, can be designed at magnet valve close to limit saturation, therefore the reactor linearity is preferably, and harmonic wave unshakable in one's determination is big
The about half of thyristor-controlled reactor.But because its capacity has been reached the limit values, so magnetic valve type controllable reactor mistake
Load-bearing capacity is poor.
Void dimension reactor is adjusted to drive power transmission shaft to control the size of air gap using electric structure, the change of air gap causes iron
The change of intracardiac magnetic flux, so as to reach the continuous purpose for changing Working winding reactance value.Although having similar to transformation as MCR
The iron core of device, with stability and reliability higher, and reactance adjustable range is big, harmonic wave is smaller, but due to using machinery
Device controls void dimension response speed slower than MCR and TCR, so being not affected by enough attention and popularization and application always.
The content of the invention
Goal of the invention:In order to overcome the deficiencies in the prior art, the present invention to provide a kind of effective air gap regulative reactance
Device, the DC current in regulation direct current effective air gap winding is ensureing reactor to substitute the size that mechanical device controls air gap
While linear and adjustable range, the reliability and response speed of reactor are improved.
Technical scheme:To achieve the above object, the technical solution adopted by the present invention is:
A kind of effective air gap REgulatable reactor, including unshakable in one's determination 1, alternate current operation winding 2 and some groups of direct current effective air gaps around
Group;Described unshakable in one's determination 1 is the loop configuration of closing, and rectangular coordinate system, unshakable in one's determination 1 both sides are set up by origin of unshakable in one's determination 1 central point
It is symmetrical with Y-axis;1 middle part unshakable in one's determination on the left of Y-axis is wound with alternate current operation winding 2, and it is some right that 1 middle part unshakable in one's determination on the right side of Y-axis is provided with
Hole unshakable in one's determination 4, paired hole unshakable in one's determination is symmetricly set on X-axis both sides, and it is equivalent to be wound with one group of direct current in adjacent two holes unshakable in one's determination
Air gap winding, differential concatenation between each group direct current effective air gap winding;In the X-axis direction with Y direction on, two neighboring iron core
The spacing in hole is equal;Direct current effective air gap winding is along X-direction or along Y direction coiling.
Further, X-direction is provided with 2n rows hole unshakable in one's determination, n is natural number.
Further, the hole unshakable in one's determination 4 is square hole or circular hole.
Further, it is described it is some composition to hole unshakable in one's determination 4 be 2 groups or 4 groups.
Further, described unshakable in one's determination 1 it is overrided to form by electrical steel sheet.
Beneficial effect:A kind of effective air gap REgulatable reactor that the present invention is provided:
1), alternate current operation winding and direct current effective air gap winding share an iron core, enormously simplify the structure of iron core, drop
Low silicon steel material consumption.
2), because direct current effective air gap winding only causes part saturation unshakable in one's determination, local saturation in local generation magnetic flux unshakable in one's determination
Effect can regard effective air gap as.Mechanical device is substituted with the effective air gap of DC control and control air gap, improve the reliability of equipment
Property and response speed.
3), using multigroup direct current effective air gap winding differential concatenation, the exchange sensed in direct current effective air gap winding is reduced
Component of voltage, influences so as to reduce alternating current voltage component on dc source.
4), alternate current operation winding and direct current effective air gap winding are between the two without electrical connection, it is to avoid grid side high voltage,
Influence of the high current to control loop, improves the reliability of reactor.
5), using single dc source to the direct current effective air gap winding power in effective air gap REgulatable reactor, because
This wiring is simple.The reactance of reactor is only relevant with direct current effective air gap winding, and control is simple.
Brief description of the drawings
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:Unshakable in one's determination 1, alternate current operation winding 2, direct current effective air gap winding 3, hole 4 unshakable in one's determination, local flux 5, crossbeam 6,
Lateral column 7.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Embodiment one:
A kind of structural representation of effective air gap REgulatable reactor of the present invention is as shown in figure 1, including unshakable in one's determination 1, exchange work
Make winding 2 and some groups of direct current effective air gap windings;Described unshakable in one's determination 1 is the loop configuration of closing, with unshakable in one's determination 1 central point as former
Point sets up rectangular coordinate system, and unshakable in one's determination 1 both sides are symmetrical with Y-axis;1 middle part unshakable in one's determination on the left of Y-axis is wound with alternate current operation winding 2, Y-axis
1 middle part unshakable in one's determination on right side is provided with some to hole unshakable in one's determination 4, and paired hole unshakable in one's determination is symmetricly set on X-axis both sides, at adjacent two
One group of direct current effective air gap winding, differential concatenation between each group direct current effective air gap winding are wound with hole unshakable in one's determination;In X-direction
In upper and Y direction, the spacing in two neighboring hole unshakable in one's determination is equal;Direct current effective air gap winding is along X-direction or along Y-axis side
To coiling.Coiling up and down or left and right coiling as shown in Figure 4, that is, be expressed as two groups of direct current effective air gap windings:3A and 3B;Respectively
Differential concatenation between group direct current effective air gap winding.Dash area is expressed as the sphere of circulation of local flux 5, the office of generation in Fig. 1
Portion's saturation can regard effective air gap as:Because when passing through DC current in direct current effective air gap winding, unshakable in one's determination 1 has the side of hole unshakable in one's determination 4
Surrounding is local to produce magnetic flux saturation, and the current amplitude for passing through is bigger, and magnetic flux degree of saturation is higher, i.e., magnetic conductivity is smaller, until connecing
The magnetic conductivity of near-space gas, it is possible to regard the size of current passed through in direct current effective air gap winding as equivalent adjustable length
Air gap;Effect is:By adjusting the size of effective air gap, whole unshakable in one's determination 1 magnetic resistance can be controlled, because main flux is with main magnetic circuit
Magnetic resistance be inversely proportional, so i.e. control main flux size.
Embodiment two:
A kind of structural representation of effective air gap REgulatable reactor of the present invention is as shown in Fig. 2 compare embodiment one
Structure leaves eight circular iron core holes 4 to be used to wind four groups of direct current effective air gap windings, to produce effective air gap evenly.Figure
5 is embodiment two, four groups of direct current effective air gap windings:5A, 5B, 5C and 5D.Four direct current effective air gap windings are square as shown in Figure 5
Formula differential concatenation is connected, and winding mode has multiple combination, and Fig. 5 provides two of which winding mode, and the principle of coiling is four groups straight
The exchange magnetic potential sensed in stream effective air gap winding cancels each other.Dash area is the sphere of circulation of local flux 5 in Fig. 2, is produced
Local saturation can regard effective air gap as.
Embodiment three:
A kind of structural representation of effective air gap REgulatable reactor of the present invention is as shown in figure 3, compared to one knot of embodiment
The two groups of square longitudinal direction of hole unshakable in one's determination 4 arrangements of size identical are left in 1 side unshakable in one's determination in structure, wherein unshakable in one's determination positioned at this middle prescription shape
Hole 4 is zero with the vertical range of X-axis;The sectional area of middle core hole 4 after merging is the sectional area of upper iron core hole 4 or lower hole unshakable in one's determination
The twice of 4 sectional areas.One group of direct current effective air gap winding is around on adjacent hole square unshakable in one's determination 4, that is, need two groups of direct currents equivalent
Air gap winding.If middle two square holes unshakable in one's determination 4 separate, two-by-two due to direct current effective air gap winding between square hole unshakable in one's determination 4
Winding mode produced by magnetic flux be to cancel out each other, magnetic flux is zero, equivalent to not existing.Two groups of direct current effective air gap windings around
On crossbeam 6 between square hole unshakable in one's determination 4, two groups of connected modes 6A, 6B of direct current effective air gap winding as shown in Figure 6.In Fig. 3
Dash area is the sphere of circulation of local flux 5, and the local saturation of generation can regard effective air gap as.
The above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art
Member
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improve and moisten
Decorations also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of effective air gap REgulatable reactor, it is characterised in that:It is straight including (1) unshakable in one's determination, alternate current operation winding (2) and some groups
Stream effective air gap winding;The iron core (1) is the loop configuration of closing, sets up right angle as origin with the central point of (1) unshakable in one's determination and sits
Mark system, 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), on the right side of Y-axis
Unshakable in one's determination (1) middle part is provided with some to hole unshakable in one's determination (4), and paired hole unshakable in one's determination is symmetricly set on X-axis both sides, in two adjacent iron
One group of direct current effective air gap winding is wound with heart hole, is reversely gone here and there between two direct current effective air gap windings per adjacent connection
Connection;In the X-axis direction with Y direction on, the spacing in two neighboring hole unshakable in one's determination is equal;Direct current effective air gap winding is along X-axis side
To or along Y direction coiling;
X-direction is provided with 2n rows hole unshakable in one's determination, n is natural number.
2. a kind of effective air gap REgulatable reactor according to claim 1, it is characterised in that:The hole unshakable in one's determination (4) is side
Hole or circular hole.
3. a kind of effective air gap REgulatable reactor according to claim 1, it is characterised in that:It is described it is some composition to iron
Heart hole (4) is 2 groups or 4 groups.
4. a kind of effective air gap REgulatable reactor according to claim 1, it is characterised in that:The iron core (1) is by electrician
Silicon steel plate stacking is formed.
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