CN106298153A - A kind of cake-shaped high-temperature superconductive noninductive coil - Google Patents
A kind of cake-shaped high-temperature superconductive noninductive coil Download PDFInfo
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- CN106298153A CN106298153A CN201610701884.2A CN201610701884A CN106298153A CN 106298153 A CN106298153 A CN 106298153A CN 201610701884 A CN201610701884 A CN 201610701884A CN 106298153 A CN106298153 A CN 106298153A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
Abstract
A kind of cake-shaped high-temperature superconductive noninductive coil, is cake core (3) before and after its internal layer dividing plate (1), is outer layer dividing plate (4) before and after cake core (3).Outer layer dividing plate (4), internal layer dividing plate (1) and cake core (3) are coaxially arranged.Outer layer dividing plate (4) is corresponding with the groove of internal layer dividing plate (1) (15) position with the groove of cake core (3) (14), and interior connection post (2) is inserted in this groove (14) and groove (15).Interior connection sheet (5) is fixed on the connection terminal of interior connection post (2).Connect post (6,7) outside two and be positioned at the outer shroud edge of outer layer dividing plate (4) and internal layer dividing plate (1), be fixed in the interlayer between outer layer dividing plate (4) and internal layer dividing plate (1).Two off-chips connect outside sheet (8) is separately fixed at two and connect on post (6,7).Hts band is looped around on cake core (3), and two hts band coilings are in opposite direction；Insulation corrugated paper (10) is between each circle superconductive tape.
Description
Technical field
The present invention relates to a kind of HVDC resistor-type fault current limiter high-temperature superconductor noninductive coil, particularly to one
Magnetic flux coupled mode cake-shaped high-temperature superconductive noninductive coil.
Background technology
Along with the fast development of national economy, the demand of electric power is continuously increased by society, and the scale of China's power industry is just
Constantly expanding, flexible DC power transmission development speed at home is at a tremendous pace.But, China is the guarantor of flexible direct current power transmission system
Protecting and not yet have good solution in measure, will become restriction it is big for the stability of flexible direct current power transmission system and safety
The matter of utmost importance of sizable application.Short trouble is damage transmission facility in Multi-end flexible direct current transmission system, causes tremendous economic
One of the most serious fault of loss.In the case of HVDC, existing chopper is difficult to cut-off in 3ms-5ms
The biggest electric current, it is therefore desirable to coordinate current limiter to be operated together.The high voltage direct current of high-temperature superconductor band based on the second filial generation
Resistance type high tc superconducting fault current limiter is serially connected in electrical network, is in no resistance state under steady-state operation, and loss is zero；At short trouble
During generation, hts band quenches and presents high resistance state and carry out current limliting, and that reduces chopper cut-offs requirement, has well
Application and market prospect.
Superconduction resistance-type current restrictor is when making, it is common that utilize a single or many superconductive tape to be fabricated to noninductive cake formula or bucket
Formula coil module, the most multiple noninductive coil modules form current limiter by connection in series-parallel.The noninductive cake formula structure of tradition is double wrap
Structure, the adjacent two circle superconductive tape electric currents of double wrap are reverse.Paper (Development of resistive fault current
limiters based on YBCO coated conductors,IEEE Transactions on Applied
Superconductivity, vol.19, no.3, pp.1950-1955) have employed the eight-trigram type structure fabrication superconduction circled round in middle part
Difilar coil.Chinese invention patent 201210057470.2 directly use in the middle part of the mode of welding to make superconduction double wrap noninductive
Coil.The shortcoming of tradition cake formula structure is that single cake port failure voltage is high, therefore, it is difficult to be fabricated to large flat bread, needs multiple little cake string
Connection just can be constructed to be permeable to bear high-tension current limiter, thus adds joint quantity.The noninductive tub structure of tradition is similarly double
Around structure, similar with cake formula structure.Paper (An analysis and short circuit test of various
types of Bi-2223bifilar winding fault current limiting module,IEEE
Transactions on Applied Superconductivity, 2006, vol.16, no.2, pp.703-706) employing pair
The mode of superconductive tape superposition coiling makes superconduction noninductive coil, and superposition coiling is more unfavorable for the heat radiation under impact.Chinese invention
Patent 201210057511.8 have employed double superconductive tape and makes superconduction noninductive coil to the mode of coiling.Tradition tub structure
Shortcoming is similar with cake formula, its radial and axial and around drum type brake noninductive coil all exist port voltage cross height etc. problem, it is difficult to
Make big cylinder.
Summary of the invention
It is an object of the invention to overcome cake formula noninductive coil in prior art relatively low with tub noninductive coil electric insulation level
Defect, and tub noninductive coil takes up room bigger problem, proposes a kind of magnetic flux coupled mode cake-shaped high-temperature superconductive noninductive
Coil.The present invention under conditions of liquid nitrogen or overfreezing liquid nitrogen soak, good heat dissipation effect, high voltage isolation capability is strong, coil around
System, cold cycling and overcurrent are hardly damaged hts band in running, maintainable strong, can apply at high voltage direct current
In resistance type high tc superconducting fault current limiter.
The invention mainly comprises outer layer dividing plate, internal layer dividing plate, cake core, interior connection post, interior connection sheet, connect outside first post,
The parts such as post, outer connection sheet, hts band and insulation corrugated paper are connected outside second.Outer layer dividing plate, internal layer dividing plate, cake core, interior
Connect post, interior connection sheet, connect outside first post, connect post outside second, that outer connection sheet forms cake-shaped high-temperature superconductive of the present invention is noninductive
The skeleton of coil, hts band and insulation corrugated paper are wound on skeleton.
Before and after internal layer dividing plate, both sides are respectively arranged with a cake core vertically, before and after two cake cores both sides be respectively arranged with an outer layer every
Plate.Two outer layer dividing plates, an internal layer dividing plate and two cake cores are annular, coaxially arranged.Two outer layer dividing plates and two
The inner annular edge of cake core radially has equivalently-sized groove, and the inner annular edge at internal layer dividing plate radially has and groove width
Spending identical groove, groove is corresponding with the position of groove, and interior connection post inserts in this groove and groove.Sheet is connected respectively in two panels
It is fixed on two connection terminals of interior connection post.Connect post outside first, the second outer post that connects lays respectively at outer layer dividing plate with interior
The outer shroud edge of layer dividing plate, is radially fixed in the interlayer between outer layer dividing plate and internal layer dividing plate.Two off-chips connect sheet respectively
It is screwed on the first outer screwed hole connecting post and the second outer connection post.Hts band is around cake core, outside being embedded in
In the interlayer of layer dividing plate and internal layer dividing plate.
Outer layer dividing plate, internal layer dividing plate and cake core use expoxy glass Steel material to make.The diameter of cake core is by high-temperature superconductor
The bendable curvature of band determines.The thickness 1mm wider than the width of hts band of cake core.The thickness of internal layer dividing plate is by steady-state operation
Magnetic field and the gliding spark discharge grade of internal layer dividing plate under magnetic field, failure operation determine.Outer layer dividing plate can be adopted with internal layer dividing plate
Use same thickness.Outer layer dividing plate, internal layer dividing plate external diameter by the thickness of hts band, the number of turn and turn-to-turn away from determining.Circle
Spacing is prepared difficulty determined by the gliding spark discharge grade of insulate corrugated paper and ectonexine dividing plate, cooling requirements, insulation corrugated paper.
Interior connection post, interior connection sheet, connect outside first post, connect post outside second, outer connection sheet uses red copper material to make.
Interior connection post is through two outer layer dividing plates, an internal layer dividing plate and two cake cores, and interior connection post radially breaks through in internal layer dividing plate
After ring, drawing two terminals vertically above cake core, two terminals highlight cake core about 5mm-8mm, and have screwed hole, screw
It is separately fixed at connecting sheet in two panels on the screwed hole of two terminals through the through hole on interior connection sheet.The two ends of interior connection sheet
Bending, one end that flexibility is little is used for welding hts band, and one end that flexibility is big can when coiling high temperature superconductor coil
The buffering of one gradient is provided.First outer connection post and the second outer post that connects vertically have screw thread on the horizontal edge of " L "
Hole, connects sheet outside fixing.Interior connection post, connect post outside first, the second outer post that connects all is screwed in internal layer dividing plate
With on outer layer dividing plate.
Insulation corrugated paper is by polytetrafluoro hot pressing, the spacing between turns that gross thickness is high temperature superconductor coil after its bending.
The head end of two hts bands connects one end that bending tablet degree is little, two high-temperature superconductors in being respectively welded at two panels
Band around on the contrary.Insulation corrugated paper head end punching, the hole of through hole and insulation corrugated paper that screw sequentially passes through interior connection sheet will
Insulation corrugated paper is fixed on the screwed hole of interior connection styletable.Two hts bands and two thoroughly do away with edge corrugated paper and are coiled into parallel
Disk-type winding.The tail end of two hts bands is respectively welded at and connected on post outside post and second the first outer connection, insulate simultaneously
The corrugated paper continuation a bit of rear opisthotonos of coiling comes to be clipped in the first outer connection post or the second outer post that connects is connected between sheet with outer.By
In double-cake coils in parallel around on the contrary, size of current is the most equal, cancels out each other in magnetic field, and coil entirety presents zero inductance.
The present invention is by connecting the quantity connecting terminal of post in increasing, the connection terminal making interior connection post is 2n, makes
With 2n cake core and 2n-1 internal layer dividing plate, it is possible to achieve the n group magnetic flux coupled mode cake formula of 2n root hts band composition is noninductive
Coil.Before and after radially, the outermost layer of both sides is two outer layer dividing plates, and centre is sequentially placed cake core, internal layer dividing plate, the row of cake core
Row.Two adjacent coil winding-directions are contrary, and size of current is the most equal, cancels out each other in magnetic field, and coil overall inductance is zero.N is
Integer not less than 1.
The present invention can change the high pressure resistant grade of noninductive coil by spacing between turns.When coil is in liquid nitrogen, high temperature
The both sides of superconductive tape all contact with liquid nitrogen, cooling and good heat dissipation effect.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 a is magnetic flux coupled mode cake formula noninductive coil skeleton schematic diagram, and Fig. 1 b is magnetic flux coupled mode cake formula noninductive coil bone
The schematic diagram of one layer of outer layer dividing plate removed by frame；
Fig. 2 a is magnetic flux coupled mode cake formula noninductive coil schematic diagram, and Fig. 2 b is that magnetic flux coupled mode cake formula noninductive coil removes one
The schematic diagram of layer outer layer dividing plate；
Fig. 3 a is outer layer dividing plate schematic diagram, and Fig. 3 b is internal layer dividing plate schematic diagram, and Fig. 3 c is cake core schematic diagram, and Fig. 3 d is interior company
Connecing post schematic diagram, Fig. 3 e is interior connection sheet schematic diagram, and Fig. 3 f is the first outer connection post schematic diagram, and Fig. 3 g is that the second outer post that connects shows
Being intended to, Fig. 3 h is outer connection sheet schematic diagram；
Fig. 4 is the insulation corrugated paper schematic diagram that hts band turn-to-turn uses；
Fig. 5 a be magnetic flux coupled mode cake formula noninductive coil A-A to sectional view, Fig. 5 b is magnetic flux coupled mode cake formula noninductive coil A
To front view.
Detailed description of the invention
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
The embodiment of the present invention uses the typical products of the second filial generation stainless steel high temperature superconductive tape commercially produced, size range
For: thickness 0.1mm-0.3mm, width 12mm.Liquid nitrogen temperature, without external magnetic field under the conditions of, critical current Ic260A can be reached.
All hts bands that the present invention uses select identical overall dimensions, such as thick 0.25mm, wide 12mm.
The invention mainly comprises and connect outside outer layer dividing plate 4, internal layer dividing plate 1, cake core 3, interior connection post 2, interior connection sheet 5, first
Connect post 6, the second outer connection parts such as post 7, outer connection sheet 8.
As illustrated in figs. ia and ib, outside outer layer dividing plate 4, internal layer dividing plate 1, cake core 3, interior connection post 2, interior connection sheet 5, first
Connect connection post 7 and outer connection sheet 8 outside post 6, second and form the skeleton of cake-shaped high-temperature superconductive noninductive coil.Before and after internal layer dividing plate 1
Both sides are respectively arranged with a cake core 3 vertically, and before and after two cake cores 3, both sides are respectively arranged with an outer layer dividing plate 4.Two outer layer dividing plates 4,
Individual internal layer dividing plate 1 and two cake cores 3 are annular, coaxially arranged, at two outer layer dividing plates 4 and the inner annular edge of two cake cores 3
Radially having equivalently-sized groove 14, the inner annular edge at internal layer dividing plate 1 radially has identical with groove 14 width
Groove 15, groove 14 is corresponding with the position of groove 15, and interior connection post 2 inserts in this groove 14 and groove 15.Open on interior connection sheet 5
Having through hole 18, interior connection sheet 5 is fixed on 2 two, interior connection post through this through hole 18 and connects on the screwed hole 17 of terminal by screw.
First outer connection post 6 and the second outer post 7 that connects lay respectively at outer layer dividing plate 4 and internal layer dividing plate 1 outer shroud edge, are positioned at outer layer dividing plate
4 with in the interlayer of internal layer dividing plate 1, radially secure.Screw connects the through hole 22 on sheet 8 through two off-chips, two off-chips is connected
Sheet 8 is separately fixed at the first outer post 6 that connects and is connected on the screwed hole 21 of post 7, as shown in Fig. 3 f and Fig. 3 g with outside second.
As shown in Figure 2 a and 2 b, hts band 9 and insulation corrugated paper 10 be wound on outer layer dividing plate 4, internal layer dividing plate 1,
Cake core 3, interior connection post 2, interior connection sheet 5, first are outer to be connected on the outer skeleton connecting post 7, outer connection sheet 8 composition of post 6, second,
Composition cake-shaped high-temperature superconductive noninductive coil.Outer layer dividing plate 4, internal layer dividing plate 1 and cake core 3 use expoxy glass Steel material to make.
As shown in Figure 3 c, cake core 3 has six through holes 12 along internal ring, and six through holes 12 are uniform, for cake core 3 and outer layer every
Fixing of plate 4, internal layer dividing plate 1 and interior connection post 2.The inner annular edge of cake core 3 radially recessing 14, interior connection post 2 inserts this
Groove 14.The diameter of cake core 3 is determined by the bendable curvature of hts band 9, and general diameter is more than 80mm.The thickness ratio of cake core 3
The width width 1mm of hts band 9, the width of second filial generation hts band is 12mm, and therefore cake core thickness is 13mm.
As shown in Figure 3 b, internal layer dividing plate 1 has five through holes 12, the centrage of five through holes 12 and groove 15 along internal ring
Centrage is separated by 60 ° two-by-two, and five through holes 12 are fixing for internal layer dividing plate 1 and outer layer dividing plate 4 and cake core 3.Internal layer dividing plate 1,
Outer layer dividing plate 4, cake core 3 and the interior through hole 12 position one_to_one corresponding being connected post 2, the groove 14 of outer layer dividing plate 4 and cake core 3 and internal layer
Groove 15 position of dividing plate 1 is corresponding.On internal layer dividing plate 1, uniform six through holes 13 at outer shroud, for internal layer dividing plate 1 with outer
Layer dividing plate 4, first outer connection connects the fixing of post 7 outside post 6 and second.Screw is connected through the first outer post 6 that connects with outside second
Through hole 13 on through hole 20 on post 7, and internal layer dividing plate 1 and two outer layer dividing plates 4, outer connects in post 6 is fixed on by first
Between layer dividing plate 1 and an outer layer dividing plate 4, by second outer connect post 7 be fixed on internal layer dividing plate 1 and another outer layer dividing plate 4 it
Between.Internal layer dividing plate 1 has six louvres 11 between through hole 12 and through hole 13, and six louvres 11 are uniform.Coiling noninductive
Coil is placed in liquid nitrogen, and louvre is for the heat exchange of hts band 9 with liquid nitrogen.The inner annular edge of internal layer dividing plate 1 is along footpath
To having groove 15, interior connection post 2 inserts this groove 15.The thickness of internal layer dividing plate 1 is by under the magnetic field of steady-state operation, failure operation
Magnetic field and the gliding spark discharge grade of internal layer dividing plate 1 determine, usually about 5mm.
As shown in Figure 3 a, outer layer dividing plate 4 is along uniform six through holes 12 of internal ring, for outer layer dividing plate 4 and internal layer dividing plate 1, cake
Core 3 and interior connection post 2 fixing；Screw is each passed through outer layer dividing plate 4, internal layer dividing plate 1, cake core 3 and the through hole of interior connection post 2
12, two cake cores 3 are separately fixed between two outer layer dividing plates 4 and an internal layer dividing plate 1, interior connection post 2 are fixed simultaneously
On outer layer dividing plate 4 with cake core 3.On outer layer dividing plate 4, have six through holes 13, for outer layer dividing plate 4 near outer shroud edge
Be connected post 6 and second outside outer with internal layer dividing plate 1, first connects the fixing of post 7；Screw connected outside post 6, second through the first outer connection
Connect the through hole 20 of post 7, and an internal layer dividing plate 1 and the through hole 13 of two outer layer dividing plates 4, the first outer post 6 that connects is fixed on
Between internal layer dividing plate 1 and an outer layer dividing plate 4, the second outer post 7 that connects is fixed on internal layer dividing plate 1 and another outer layer dividing plate 4
Between.Having six louvres 11 on outer layer dividing plate 4, six louvres 11 are distributed between through hole 12 and through hole 13.Coiling
Coil is placed in liquid nitrogen, and louvre 11 is for the heat exchange of hts band 9 with liquid nitrogen.The inner annular edge edge of outer layer dividing plate 4
Radially having groove 14, interior connection post 2 inserts this groove 14.The thickness of outer layer dividing plate 4 can be equal with internal layer dividing plate 1.Outer layer
The size of the external diameter of dividing plate 4, the external diameter of internal layer dividing plate 1 and louvre 11 by thickness, the number of turn and the turn-to-turn of hts band 9 away from
Determine.The thickness of second filial generation hts band is between 0.1mm-0.3mm.Turn-to-turn is away from by insulation corrugated paper 10, internal layer dividing plate 1
Prepare difficulty determine with the gliding spark discharge grade of outer layer dividing plate 4, cooling requirements, insulation corrugated paper 10, generally 4mm-10mm it
Between.
Interior connection post 2, interior connection sheet 5, first outer connection post the 6, second outer connection post 7 and outer connection sheet 8 use red copper material
Material makes.
As shown in Figure 3 d, interior connection post 2 is I-shaped, and bottom " work " word, one end of horizontal edge extends, on this extended end
Having through hole 16, through hole 16, as skeleton connectivity port, is connected with external circuit.The centre of " work " word vertical edge of interior connection post 2
Have through hole 12, fixing in order to outer layer dividing plate 4 and cake core 3.On interior connection post 2 " work " word, horizontal edge two ends are vertically opened
There are two screwed holes 17, in fixing, connect sheet 5.As shown in Fig. 5 a Yu 5b, the thickness of interior connection post 2 and groove 14 and groove
The width of 15 is equal, and " work " word vertical edge of interior connection post 2 is positioned in the groove 15 of internal layer dividing plate 1, under " work " word of interior connection post 2
It is positioned at inside horizontal edge in the groove 14 of cake core 3, under " work " word of interior connection post 2, outside horizontal edge, is positioned at the groove 14 of outer layer dividing plate 4
In, screw, through the through hole of interior connection sheet 5, is separately fixed at horizontal edge two on " work " word of interior connection post 2 by connecting sheet 5 in two panels
On two screwed holes 17 of end.
As shown in Figure 3 e, interior connection sheet 5 is arrow gauge shape, bending two ends, and centre has through hole 18, and screw passes through hole 18 will
Interior connection sheet 5 is fixed on the screwed hole 17 of interior connection post 2.Interior connection sheet 5 has two panels, as shown in figure 5 a and 5b, from figure
The positive apparent direction of 5b is observed, the big one end of a piece of interior connection sheet 5 flexibility of near-end on the right side of the little one end of flexibility, another
Connecting fixing in opposite direction of sheet 5 in sheet, the big one end of flexibility is in the left side of the little one end of flexibility.Interior connection sheet 5 bends
Spending little one end to be used for welding hts band 9, one end that flexibility is big can provide the slow of a gradient when coiling
Punching.
As shown in Fig. 3 f Yu 3g, the first outer post 6 that connects is " L " shape, and the upper end level of the vertical edge of " L " shape draws a prolongation
Section, this extension is parallel to the horizontal edge of " L " shape, and this extension has vertically oriented aperture there-through 19, as skeleton connectivity port.
The second outer post 7 that connects is " L " shape, and the upper end level of the vertical edge of " L " draws an extension, and the thickness of the extension of extraction is interior
The thickness of layer dividing plate 1, this extension is connected the post 7 electricity outside internal layer dividing plate outer shroud for the first outer post 6 that connects with outside second
Gas connects.First outer post 6 the be connected post 7 outer with second that connect all opens hole 23 at the vertical edge of " L ", and the second outer post 7 that connects is by logical
Hole 23 is fixed on the first outer connection post 6.First connects outward post 6, and being connected post 7 all opens hole in the turning point of " L " outward with second
20, screw is fixed on being connected post 6 outside first between internal layer dividing plate 1 and outer layer dividing plate 4 with through hole 13 by through hole 20, it is ensured that the
One connects outward the skeleton connectivity port of post 6 with the interior skeleton connectivity port of post 2 that is connected with in the side at skeleton, such as Fig. 5 a institute
Show.The second outer post 7 that connects is fixed between the opposite side of internal layer dividing plate 1 and another outer layer dividing plate 4, and the second outer connection
" L " shape transverse direction edge of the transverse direction edge of post 7 " L " shape and the first outer connection post 6 is contrary, i.e. forms back-to-back shape.First
Be connected post 7 vertically has screwed hole 21 on the horizontal edge of " L " to outer connection post 6 outward with second, connects sheet outside fixing
8.The first outer post 6 that connects is all equal with the thickness of cake core 3 with the thickness of connection post 7 outside second.
As illustrated in figure 3h, the central authorities of outer connection sheet 8 have through hole 22, and two off-chips are connected sheet 8 points through through hole 22 by screw
It is not fixed on the first outer post 6 that connects to be connected on the screwed hole 21 of post 7 with outside second.
As shown in Figure 4, insulation corrugated paper 10 is standby by polytetrafluoro material hot pressing, and width is 12mm, the total thickness after its bending
Degree is the spacing between turns of high temperature superconductor coil.
As in figure 2 it is shown, the head end of two hts bands 9 connects, in being respectively welded at two panels, one end that sheet 5 flexibility is little,
Two hts bands 9 around on the contrary.The head end punching of insulation corrugated paper 10, screw sequentially passes through the through hole of interior connection sheet 5
18 and insulation corrugated paper 10 hole by insulation corrugated paper 10 be fixed on the screwed hole 17 of interior connection post 2 terminal.Two high temperature surpass
Conduction band 9 and two eradication edge corrugated paper 10 are coiled into disk-type winding parallel, are wound on respectively on two cake cores 3.Two high-temperature superconductors
Tail end with 9 is respectively welded at the first outer post 6 that connects and is connected on post 7 with outside second, and insulation corrugated paper 10 continues coiling one simultaneously
After segment, opisthotonos comes to be clipped in respectively the first outer post 6 that connects and is connected between sheet 8 with outer and the second outer post 7 that connects is connected sheet 8 with outer
Between.Owing to double-cake coils in parallel is around on the contrary, size of current is the most equal, cancels out each other in magnetic field, and coil entirety presents zero
Inductance.
The present invention is by connecting the quantity connecting terminal of post 2 in increasing, the connection terminal making interior connection post 2 is 2n,
Use 2n cake core 3 and 2n-1 internal layer dividing plate 1, it is possible to achieve the n group magnetic flux coupled mode cake formula of 2n root hts band 9 composition
Noninductive coil.Before and after radially, the outermost layer of both sides is two outer layer dividing plates, and centre is sequentially placed cake core, internal layer dividing plate, cake core.
Two adjacent coil winding-directions are contrary, and size of current is the most equal, cancels out each other in magnetic field, and coil overall inductance is zero.N is the least
In the integer of 1.
The present invention can change the high pressure resistant grade of noninductive coil by spacing between turns.When coil is immersed in liquid nitrogen,
The both sides of hts band 9 all contact with liquid nitrogen, cooling and good heat dissipation effect.
Claims (10)
1. a cake-shaped high-temperature superconductive noninductive coil, it is characterised in that: described noninductive coil includes outer layer dividing plate (4), internal layer
Dividing plate (1), cake core (3), interior connection post (2), interior connection sheet (5), connect post (6) outside first, connect post (7), outer company outside second
Contact pin (8), hts band (9) and insulation corrugated paper (10)；Described outer layer dividing plate (4), internal layer dividing plate (1), cake core (3),
Interior connection post (2), interior connection sheet (5), connect post (6) outside first, connect post (7) and outer connection sheet (8) composition cake formula outside second
The skeleton of high-temperature superconductor noninductive coil；Hts band (9) is looped around on cake core (3), and insulation corrugated paper (10) is positioned at noninductive line
Between each circle superconductive tape of circle；
Before and after internal layer dividing plate (1), both sides are respectively arranged with a cake core (3) vertically, and before and after two cake cores (3), both sides are respectively arranged with outside one
Layer dividing plate (4)；Two outer layer dividing plates (4), an internal layer dividing plate (1) and two cake cores (3) are annular, coaxially arranged；Two
The inner annular edge of individual outer layer dividing plate (4) and two cake cores (3) radially has equivalently-sized groove (14), at internal layer dividing plate
(1) inner annular edge radially has the position of the groove (15) identical with groove (14) width, groove (14) and groove (15)
Correspondence, interior connection post (2) is inserted in this groove (14) and groove (15)；Connect sheet (5) in two panels and be fixed on interior connection post (2)
Two connect on terminal；Connect outside first and connect post (7) outside post (6) and second and lay respectively at outer layer dividing plate (4) and internal layer dividing plate
(1) outer shroud edge, is radially fixed in the interlayer between outer layer dividing plate (4) and internal layer dividing plate (1)；Two off-chips connect sheet
(8) it is separately fixed at outside first and connects post (6) and be connected outside second on post (7).
2. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: described internal layer dividing plate (1) edge
Internal ring has five through holes (12), and the centrage of five through holes (12) is separated by 60 ° two-by-two with the centrage of groove (15)；Described
Cake core (3) has six through holes (12) along internal ring, and six through holes (12) are uniform；Described outer layer dividing plate (4) is along internal ring uniform six
Individual through hole (12)；Internal layer dividing plate (1), cake core (3) and outer layer dividing plate (4) along the uniform through hole of internal ring for internal layer dividing plate (1) with
Outer layer dividing plate (4) and cake core (3) fixing；Internal layer dividing plate (1), outer layer dividing plate (4), cake core (3) and the interior through hole being connected post (2)
(12) position one_to_one corresponding, screw is each passed through the logical of outer layer dividing plate (4), internal layer dividing plate (1), cake core (3) and interior connection post (2)
Two cake cores (3) are separately fixed between two outer layer dividing plates (4) and internal layer dividing plate (1), simultaneously by interior connection post by hole (12)
(2) it is fixed on outer layer dividing plate (4) and cake core (3).
3. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: at described outer layer dividing plate (4)
On, have six through holes (13) near outer shroud edge, be connected post for outer layer dividing plate (4) and internal layer dividing plate (1), outside first
(6) the fixing of post (7) and is connected outside second；Screw connects post (6) and the through hole being connected outside second on post (7) outside first
(20), and the through hole (13) on internal layer dividing plate (1) and two outer layer dividing plates (4), it is fixed on internal layer by connecting post (6) outside first
Between dividing plate (1) and an outer layer dividing plate (4), by connect outside second post (7) be fixed on internal layer dividing plate (1) and another outer layer every
Between plate (4).
4. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: described interior connection post (2) is
I-shaped, bottom " work " word, one end of horizontal edge extends, and has through hole (16) on this extended end, and through hole (16) is as skeleton even
Connect port, be connected with external circuit；The centre of " work " word vertical edge of interior connection post (2) has through hole (12), in order to outer layer every
Plate (4) and cake core (3) fixing；On interior connection post (2) " work " word, horizontal edge two ends vertically have two screwed holes (17),
Connect sheet (5) in two panels to be separately fixed on two screwed holes (17)；" work " word vertical edge of interior connection post (2) is positioned at internal layer dividing plate
In the groove (15) of 1, it is positioned in the groove (14) of cake core (3) inside horizontal edge under " work " word of interior connection post 2, interior connection post 2
It is positioned at outside horizontal edge in the groove (14) of outer layer dividing plate (4) under " work " word.
5. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: connect post outside described first
(6) being " L " shape, the upper end level of " L " shape vertical edge draws an extension, and this extension is parallel to the horizontal edge of " L " shape, and this extends
Vertically oriented aperture there-through (19) is had, as the connectivity port of skeleton on Duan；The second outer post 7 that connects is " L " shape, " L " vertical edge
Upper end level draws an extension, and the thickness of the extension of extraction is the thickness of internal layer dividing plate (1), and this extension is used for first
Outer connection post (6) be connected the post (7) electrical connection outside internal layer dividing plate (1) outer shroud outside second；Connect outside first post (6) with
Connect post (7) outside second and all have through hole (23) at the vertical edge of " L ", connect post (7) outside second and be fixed on the by through hole (23)
Connect outside one on post (6)；Connect post (6) outside first and be connected post (7) outside second and all open hole (20), spiral shell in the turning point of " L "
Silk is fixed on being connected post (6) outside first between internal layer dividing plate (1) and outer layer dividing plate (4) with through hole (13) by through hole (20),
Make the skeleton connectivity port connecting post (6) outside first with the interior skeleton connectivity port of post (2) that is connected with in the side at skeleton；The
Connect post (7) outside two to be fixed between the opposite side of internal layer dividing plate (1) and another outer layer dividing plate (4), and the second outer connection
" L " the shape transverse direction edge connecting post (6) outside the transverse direction edge and first of post (7) " L " shape is contrary, i.e. forms back-to-back shape；
Connect post (6) outside first and be connected post (7) outside second on the horizontal edge of " L ", vertically have screwed hole (21), for solid
Sheet (8) is connected outside fixed；The thickness connecting post (6) outside first and connect post (7) outside second is equal with the thickness of cake core (3).
6. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: described internal layer dividing plate (1) exists
Having six louvres (11) between through hole (12) and through hole (13), six louvres (11) are uniform；The internal ring of internal layer dividing plate (1)
Edge radially has groove (15), and interior connection post (2) inserts this groove (15)；The thickness of internal layer dividing plate (1) is by steady-state operation
The gliding spark discharge grade of magnetic field, magnetic field under failure operation and internal layer dividing plate (1) determine.
7. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1 or 6, it is characterised in that: described outer layer dividing plate (4)
Thickness equal with internal layer dividing plate (1)；The external diameter of outer layer dividing plate (4), the external diameter of internal layer dividing plate (1) and the size of louvre (11)
By thickness, the number of turn and the turn-to-turn of hts band (9) away from determining；Turn-to-turn away from by insulation corrugated paper (10), internal layer dividing plate (1) and
The gliding spark discharge grade of outer layer dividing plate (4), cooling requirements and insulation corrugated paper (10) are prepared difficulty and are determined.
8. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: described internal layer dividing plate (1) and
Having six louvres (11) on outer layer dividing plate (4) between through hole (12) and through hole (13), six louvres (11) are uniform.
9. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: described outer layer (4), internal layer every
Plate (1) and cake core (3) use expoxy glass Steel material to make；Interior connection post (2), interior connection sheet (5), connect outside first post (6),
Connect post (7) outside second and outer connection sheet (8) uses red copper material to make.
10. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1, it is characterised in that: two hts bands (9)
Head end is respectively welded in two panels and connects one end that sheet (5) flexibility is little, two hts bands (9) around on the contrary；Insulation
The head end punching of corrugated paper (10), screw sequentially passes through through hole (18) and the hole of insulation corrugated paper (10) of interior connection sheet (5), will
Insulation corrugated paper (10) is fixed on the screwed hole (17) of interior connection post (2)；Two hts bands (9) and two thoroughly do away with edge ripple
Paper (10) is coiled into disk-type winding parallel, is wound on respectively on two cake cores (3)；The tail end of two hts bands (9) welds respectively
Being connected on outside first and connect post (6) and be connected outside second on post (7), the corrugated paper that simultaneously insulate (10) continues a bit of rear opisthotonos of coiling
Come over to be clipped in respectively outside first to connect post (6) be connected between sheet (8) with outer and connect outside second post (7) with outer be connected sheet (8) it
Between；Owing to double-cake coils in parallel is around on the contrary, size of current is the most equal, cancels out each other in magnetic field, and coil entirety presents zero electricity
Sense.
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| CN109286180A (en) * | 2017-07-19 | 2019-01-29 | 中国电力科学研究院 | A kind of high tc superconducting fault current limiter |
| WO2019051842A1 (en) * | 2017-09-18 | 2019-03-21 | 陈坚胜 | High-frequency non-inductive pot |
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| CN110246655A (en) * | 2019-07-25 | 2019-09-17 | 广东电网有限责任公司 | A kind of HTS-SMES magnet |
| CN111508682A (en) * | 2020-02-28 | 2020-08-07 | 北京交通大学 | Composite material framework structure for superconducting current limiter |
| CN113035488A (en) * | 2021-04-20 | 2021-06-25 | 北京交通大学 | Double-cake type non-inductive superconducting current-limiting coil |
| CN113054634A (en) * | 2021-04-20 | 2021-06-29 | 北京交通大学 | Double-cake type inductive superconducting current limiting unit for inductive superconducting direct current limiter |
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