CN106298153B - 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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- CN106298153B CN106298153B CN201610701884.2A CN201610701884A CN106298153B CN 106298153 B CN106298153 B CN 106298153B CN 201610701884 A CN201610701884 A CN 201610701884A CN 106298153 B CN106298153 B CN 106298153B
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- partition board
- connecting pole
- layer partition
- hole
- cake
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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, the front and back of internal layer partition board (1) is cake core (3), and the front and back of cake core (3) is outer layer partition board (4).Outer layer partition board (4), internal layer partition board (1) and cake core (3) are coaxially arranged.Outer layer partition board (4) and the groove (14) of cake core (3) are corresponding with straight slot (15) position of internal layer partition board (1), and interior connecting pole (2) is inserted into this groove (14) and straight slot (15).Interior connection sheet (5) is fixed on the connection terminal of interior connecting pole (2).Two outer connecting poles (6,7) are located at the outer shroud edge of outer layer partition board (4) and internal layer partition board (1), are fixed in the interlayer between outer layer partition board (4) and internal layer partition board (1).The outer connection sheet (8) of two panels is separately fixed on two outer connecting poles (6,7).Hts band is looped around on cake core (3), and two hts band coiling directions are opposite；The corrugated paper that insulate (10) is between each circle superconductive tape.
Description
Technical field
The present invention relates to a kind of high voltage direct current resistor-type fault current limiter high-temperature superconductor noninductive coils, more particularly to a kind of
Magnetic flux coupled mode cake-shaped high-temperature superconductive noninductive coil.
Background technology
With the rapid development of the national economy, demand of the society to electric power is continuously increased, the scale of China's power industry is just
Constantly expanding, development speed is at a tremendous pace at home for flexible DC power transmission.However, guarantor of the China in flexible direct current power transmission system
There has been no good solution in shield measure, the stability of flexible direct current power transmission system will become with safety restricts it greatly
The matter of utmost importance of sizable application.Short trouble is to damage transmission facility in Multi-end flexible direct current transmission system, lead to tremendous economic
One of the failure the most serious of loss.In high voltage direct current, existing breaker is difficult to be cut-off in 3ms-5ms
So big electric current, it is therefore desirable to current limiter be coordinated to be operated together.The high voltage direct current of high-temperature superconductor band based on the second generation
Resistance type high tc superconducting fault current limiter is serially connected in power grid, and no resistance state, loss zero are under steady-state operation；In short trouble
When generation, hts band quenches and high resistance state is presented and carries out current limliting, reduces the requirement of cut-offfing of breaker, has good
Using with market prospects.
Superconduction resistance-type current restrictor is typically fabricated to noninductive cake formula or bucket when making using a single or more superconductive tape
Formula coil module, then multiple noninductive coil modules current limiter is formed by connection in series-parallel.Tradition is noninductive, and cake formula structure is double wrap
The adjacent two circles superconduction belt current of structure, double wrap is reversed.Paper (Development of resistive fault current
limiters based on YBCO coated conductors,IEEE Transactions on Applied
Superconductivity, vol.19, no.3, pp.1950-1955) use the eight-trigram type structure fabrication superconduction that middle part is circled round
Difilar coil.It is noninductive that Chinese invention patent 201210057470.2 directly makes superconduction double wrap in such a way that middle part is welded
Coil.The shortcomings that traditional 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 strings
Connection can just be constructed to be permeable to bear the current limiter of high voltage, to increase connector quantity.Barrel type structure that tradition is noninductive is similarly double
It is similar with cake formula structure around 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) using double
The mode of superconductive tape superposition coiling makes superconduction noninductive coil, and superposition coiling is more unfavorable for the heat dissipation under impact.Chinese invention
Patent 201210057511.8 uses double superconductive tapes and makes superconduction noninductive coil to the mode of coiling.Traditional barrel type structure
Disadvantage is similar with cake formula, it is radial and axial and around drum type brake noninductive coil there is the problems such as port voltage is excessively high, it is difficult to
Make big cylinder.
Invention content
The purpose of the present invention is overcome in the prior art the cake formula noninductive coil level that is electrically insulated with barrel type noninductive coil it is relatively low
Defect and the larger problem of barrel type noninductive coil occupied space, propose that a kind of magnetic flux coupled mode cake-shaped high-temperature superconductive is noninductive
Coil.For the present invention under conditions of liquid nitrogen or overfreezing liquid nitrogen impregnate, good heat dissipation effect, high voltage isolation capability is strong, coil around
Hts band is hardly damaged in system, cold cycling and overcurrent operation, it is maintainable strong, it can apply in high voltage direct current
In resistance type high tc superconducting fault current limiter.
The invention mainly comprises outer layer partition board, internal layer partition board, cake core, interior connecting pole, interior connection sheet, the first outer connecting pole,
The components such as the second outer connecting pole, outer connection sheet, hts band and insulation corrugated paper.It is outer layer partition board, internal layer partition board, cake core, interior
Connecting pole, interior connection sheet, the first outer connecting pole, the second outer connecting pole, 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.
Internal layer partition board front and rear sides are each in an axial direction there are one cake core, the front and rear sides of two cake cores respectively there are one outer layer every
Plate.Two outer layer partition boards, an internal layer partition board and two cake cores are annular, coaxially arranged.In two outer layer partition boards and two
The inner annular edge of cake core is radially provided with the identical groove of size, is radially provided in the inner annular edge of internal layer partition board wide with groove
Identical straight slot is spent, groove is corresponding with the position of straight slot, and interior connecting pole is inserted into this groove and straight slot.Connection sheet is distinguished in two panels
It is fixed on two connection terminals of interior connecting pole.First outer connecting pole, the second outer connecting pole be located at outer layer partition board with it is interior
The outer shroud edge of layer partition board, is radially fixed in the interlayer between outer layer partition board and internal layer partition board.The outer connection sheet difference of two panels
It is screwed on the threaded hole of the first outer connecting pole and the second outer connecting pole.Hts band is around cake core, embedded in outer
In the interlayer of layer partition board and internal layer partition board.
Outer layer partition board, internal layer partition board and cake core are made of expoxy glass Steel material.The diameter of cake core is by high-temperature superconductor
The bendable curvature of band determines.The thickness of cake core is wider 1mm than the width of hts band.The thickness of internal layer partition board is by steady-state operation
The gliding spark discharge grade in magnetic field and internal layer partition board under magnetic field, failure operation determines.Outer layer partition board can be adopted with internal layer partition board
Use same thickness.Outer layer partition board, internal layer partition board outer diameter by the thickness of hts band, the number of turns and turn-to-turn away from determining.Circle
Spacing is prepared difficulty and is determined by insulation corrugated paper and the gliding spark discharge grade of ectonexine partition board, cooling requirements, insulation corrugated paper.
Interior connecting pole, interior connection sheet, the first outer connecting pole, the second outer connecting pole, outer connection sheet are made of red copper material.
Interior connecting pole passes through two outer layer partition boards, an internal layer partition board and two cake cores, interior connecting pole to radially break through in internal layer partition board
After ring, two terminals are drawn above cake core in an axial direction, two terminals protrude cake core about 5mm-8mm, and are provided with threaded hole, screw
Connection sheet in two panels is separately fixed on the threaded hole of two terminals by the through-hole in interior connection sheet.The both ends of interior connection sheet
Bending, for the small one end of curvature for welding hts band, the big one end of curvature can in coiling high temperature superconductor coil
The buffering of one gradient is provided.First outer connecting pole and the second outer connecting pole are vertically provided with screw thread on the horizontal edge of " L "
Hole, to fixed outer connection sheet.Interior connecting pole, the first outer connecting pole, the second outer connecting pole are screwed in internal layer partition board
With on outer layer partition board.
For the corrugated paper that insulate by polytetrafluoro hot pressing, overall thickness after bending is the spacing between turns of high temperature superconductor coil.
The head end of two hts bands is respectively welded at one end that connection sheet curvature is small in two panels, two high-temperature superconductors
Band around to opposite.The corrugated paper head end that insulate punches, and screw sequentially passes through the through-hole of interior connection sheet and the hole for the corrugated paper that insulate will
Insulation corrugated paper is fixed on the threaded hole of interior connecting pole terminal.Two hts bands and two eradication edge corrugated papers are coiled into parallel
Disk-type winding.The tail end of two hts bands is respectively welded on the first outer connecting pole and the second outer connecting pole, is insulated simultaneously
Corrugated paper continues a bit of rear reflexed of coiling and comes to be clipped between the first outer connecting pole or the second outer connecting pole and outer connection sheet.By
In double-cake coils in parallel around on the contrary, size of current is equal always, magnetic field is cancelled out each other, and zero inductance is integrally presented in coil.
For the present invention by the quantity of the connection terminal of connecting pole in increase, it is 2n to make the connection terminal of interior connecting pole, is made
With 2n cake core and 2n-1 internal layer partition board, the n group magnetic flux coupled mode cake formulas that 2n root hts bands composition may be implemented are noninductive
Coil.Radially the outermost layer of front and rear sides is two outer layer partition boards, and centre is sequentially placed the row of cake core, internal layer partition board, cake core
Row.Two adjacent coil winding-directions are on the contrary, size of current is equal always, and magnetic field is cancelled out each other, 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 are contacted with liquid nitrogen, cooling and good heat dissipation effect.
Description of the drawings
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 a are magnetic flux coupled mode cake formula noninductive coil skeleton schematic diagram, and Fig. 1 b are magnetic flux coupled mode cake formula noninductive coil bone
Frame removes the schematic diagram of one layer of outer layer partition board；
Fig. 2 a are magnetic flux coupled mode cake formula noninductive coil schematic diagram, and Fig. 2 b are that magnetic flux coupled mode cake formula noninductive coil removes one
The schematic diagram of layer outer layer partition board；
Fig. 3 a are outer layer partition board schematic diagram, and Fig. 3 b are internal layer partition board schematic diagram, and Fig. 3 c are cake core schematic diagram, and Fig. 3 d are interior company
Column schematic diagram is connect, Fig. 3 e are interior connection sheet schematic diagram, and Fig. 3 f are the first outer connecting pole schematic diagram, and Fig. 3 g are that the second outer connecting pole shows
It is intended to, Fig. 3 h are outer connection sheet schematic diagram；
Fig. 4 is the insulation corrugated paper schematic diagram that hts band turn-to-turn uses；
Fig. 5 a are magnetic flux coupled mode cake formula noninductive coil sectional view along A-A, and Fig. 5 b are magnetic flux coupled mode cake formula noninductive coil A
To front view.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
The embodiment of the present invention is using the typical products for the second 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 appearance and size, such as thickness 0.25mm, width 12mm.
The invention mainly comprises connect outside outer layer partition board 4, internal layer partition board 1, cake core 3, interior connecting pole 2, interior connection sheet 5, first
Connect the components such as column 6, the second outer connecting pole 7, outer connection sheet 8.
As illustrated in figs. 1A and ib, outer layer partition board 4, internal layer partition board 1, cake core 3, interior connecting pole 2, outside interior connection sheet 5, first
Connecting pole 6, the second outer connecting pole 7 and outer connection sheet 8 form the skeleton of cake-shaped high-temperature superconductive noninductive coil.Before and after internal layer partition board 1
Both sides are each in an axial direction, and there are one cake cores 3, and respectively there are one outer layer partition boards 4 for the front and rear sides of two cake cores 3.Two outer layer partition boards 4, one
A internal layer partition board 1 and two cake cores 3 are annular, coaxially arranged, in the inner annular edge of two outer layer partition boards 4 and two cake cores 3
It is radially provided with the identical groove 14 of size, is radially provided in the inner annular edge of internal layer partition board 1 of same size with groove 14
Straight slot 15, groove 14 is corresponding with the position of straight slot 15, and interior connecting pole 2 is inserted into this groove 14 and straight slot 15.It is opened in interior connection sheet 5
There are through-hole 18, screw to be fixed on interior connection sheet 5 on the threaded hole 17 of 2 two connection terminals of interior connecting pole across the through-hole 18.
First outer connecting pole 6 and the second outer connecting pole 7 are located at outer layer partition board 4 and 1 outer shroud edge of internal layer partition board, are located at outer layer partition board
4 in the interlayer of internal layer partition board 1, it is radially secure.Screw passes through the through-hole 22 in connection sheet 8 outside two panels, will be connected outside two panels
Piece 8 is separately fixed on the threaded hole 21 of the first outer connecting pole 6 and the second outer connecting pole 7, as shown in Fig. 3 f and Fig. 3 g.
As shown in Figure 2 a and 2 b, hts band 9 with insulation corrugated paper 10 be wound on outer layer partition board 4, internal layer partition board 1,
On the skeleton that cake core 3, interior connecting pole 2, interior connection sheet 5, the first outer connecting pole 6, the second outer connecting pole 7, outer connection sheet 8 form,
Form cake-shaped high-temperature superconductive noninductive coil.Outer layer partition board 4, internal layer partition board 1 and cake core 3 are made of expoxy glass Steel material.
As shown in Figure 3c, cake core 3 is opened along inner ring there are six through-hole 12, and six through-holes 12 are uniformly distributed, for cake core 3 and outer layer every
The fixation of plate 4, internal layer partition board 1 and interior connecting pole 2.Radially recessing 14, interior connecting pole 2 are inserted into this to the inner annular edge of cake core 3
Groove 14.The diameter of cake core 3 is determined that general diameter is more than 80mm by the bendable curvature of hts band 9.The thickness ratio of cake core 3
The width of the wide 1mm of width of hts band 9, second generation hts band are 12mm, therefore cake core thickness is 13mm.
As shown in Figure 3b, internal layer partition board 1 is opened along inner ring there are five through-hole 12, center line and the straight slot 15 of five through-holes 12
Center line is separated by 60 ° two-by-two, and five through-holes 12 are used for the fixation of internal layer partition board 1 and outer layer partition board 4 and cake core 3.Internal layer partition board 1,
Outer layer partition board 4, cake core 3 and 12 position of through-hole of interior connecting pole 2 correspond, the groove 14 and internal layer of outer layer partition board 4 and cake core 3
15 position of straight slot of partition board 1 corresponds to.On internal layer partition board 1, uniformly distributed six through-holes 13 at outer shroud, for internal layer partition board 1 and outside
The fixation of layer partition board 4, the first outer connecting pole 6 and the second outer connecting pole 7.Screw passes through the first outer connecting pole 6 to be connect with outside second
Through-hole 13 ' on 13 two outer layer partition boards 4 of through-hole of through-hole 20 and internal layer partition board 1 on column 7, the first outer connecting pole 6 is consolidated
Be scheduled between internal layer partition board 1 and an outer layer partition board 4, by the second outer connecting pole 7 be fixed on internal layer partition board 1 and another outer layer every
Between plate 4.Internal layer partition board 1 is opened between through-hole 12 and through-hole 13 there are six heat emission hole 11, and six heat emission holes 11 are uniformly distributed.Coiling
Noninductive coil is placed in liquid nitrogen, and heat emission hole is used for the heat exchange of hts band 9 and liquid nitrogen.The inner annular edge of internal layer partition board 1
It is radially provided with straight slot 15, interior connecting pole 2 is inserted into this straight slot 15.The thickness of internal layer partition board 1 is transported by the magnetic field of steady-state operation, failure
The gliding spark discharge grade determination of the lower magnetic field of row and internal layer partition board 1, usually 5mm or so.
As shown in Figure 3a, outer layer partition board 4 is evenly distributed with six through-holes 12 along inner ring, for outer layer partition board 4 and internal layer partition board 1, cake
The fixation of core 3 and interior connecting pole 2；Screw is each passed through the through-hole of outer layer partition board 4, internal layer partition board 1, cake core 3 and interior connecting pole 2
12, two cake cores 3 are separately fixed between two outer layer partition boards 4 and an internal layer partition board 1, while interior connecting pole 2 being fixed
On outer layer partition board 4 and cake core 3.On outer layer partition board 4, is opened there are six through-hole 13 close to outer shroud edge, be used for outer layer partition board 4
With the fixation of internal layer partition board 1, the first outer connecting pole 6 and the second outer connecting pole 7；Screw passes through to be connected outside the first outer connecting pole 6, second
The through-hole 13 ' for connecing the through-hole 20 of column 7 and the through-hole 13 and two outer layer partition boards 4 of an internal layer partition board 1 will connect outside first
Column 6 is fixed between internal layer partition board 1 and an outer layer partition board 4, and the second outer connecting pole 7 is fixed on internal layer partition board 1 and another
Between outer layer partition board 4.Opened on outer layer partition board 4 there are six heat emission hole 11, six heat emission holes 11 be distributed on through-hole 12 and through-hole 13 ' it
Between.The coil of coiling is placed in liquid nitrogen, and heat emission hole 11 is used for the heat exchange of hts band 9 and liquid nitrogen.Outer layer partition board 4 it is interior
Ring edge is radially provided with groove 14, and interior connecting pole 2 is inserted into this groove 14.The thickness of outer layer partition board 4 can be with 1 phase of internal layer partition board
Deng.The size of the outer diameter of outer layer partition board 4, the outer diameter of internal layer partition board 1 and heat emission hole 11 by the thickness of hts band 9, the number of turns with
And turn-to-turn is away from determining.The thickness of second generation hts band is between 0.1mm-0.3mm.Turn-to-turn away from by insulation corrugated paper 10,
The gliding spark discharge grade of internal layer partition board 1 and outer layer partition board 4, cooling requirements, insulation corrugated paper 10 prepare difficulty and determine, usually exist
Between 4mm-10mm.
Interior connecting pole 2, interior connection sheet 5, the first outer connecting pole 6, the second outer connecting pole 7 and outer connection sheet 8 use red copper material
Material makes.
As shown in Figure 3d, interior connecting pole 2 is I-shaped, and one end of " work " word underbeam extends, is provided on this extended end
Through-hole 16, through-hole 16 are connect as skeleton connectivity port with external circuit." work " word central sill of interior connecting pole 2 is provided with through-hole 12,
To the fixation with outer layer partition board 4 and cake core 3.It vertically opens there are two threaded hole at interior connecting pole 2 " work " word upper beam both ends
17, for fixed interior connection sheet 5.As shown in Fig. 5 a and 5b, the width phase of the thickness and groove 14 and straight slot 15 of interior connecting pole 2
Pass through the straight slot 15 of internal layer partition board 1 Deng " work " word central sill of, interior connecting pole 2, both ends are respectively embedded into the groove 14 of cake core 3 and outer
In the groove 14 of layer partition board 4.Screw passes through the through-hole of interior connection sheet 5, and connection sheet in two panels 5 is separately fixed at interior connecting pole 2
" work " word on horizontal edge both ends two threaded holes 17 on.
As shown in Figure 3 e, interior connection sheet 5 is arrow gauge shape, bending two ends, and centre is provided with through-hole 18, and screw passes through the general of through-hole 18
Interior connection sheet 5 is fixed on the threaded hole 17 of interior connecting pole 2.Interior connection sheet 5 shares two panels, as shown in figure 5 a and 5b, from figure
The positive apparent direction of 5b is observed, and the big one end of a piece of 5 curvature of interior connection sheet of proximal end is another on the right side of the small one end of curvature
5 fixed direction of connection sheet in piece on the contrary, the big one end of curvature the small one end of curvature left side.Interior connection sheet 5 is bent
Spend small one end for welding hts band 9, the big one end of curvature can provide the slow of gradient in coiling
Punching.
As shown in Fig. 3 f and 3g, the first outer connecting pole 6 is " L " shape, and the upper end level of the vertical edge of " L " shape is drawn one and extended
Section, this extension is parallel to the horizontal edge of " L " shape, vertically oriented aperture there-through 19 is provided on this extension, as skeleton connectivity port.
Second outer connecting pole 7 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 partition board 1, the extension are used for the electricity of the first outer connecting pole 6 and the second outer connecting pole 7 on the outside of internal layer partition board outer shroud
Gas connects.First outer connecting pole 6 and the second outer connecting pole 7 open hole 23 in the vertical edge of " L ", and the second outer connecting pole 7 passes through logical
Hole 23 is fixed on the first outer connecting pole 6.First outer connecting pole 6 and the second outer connecting pole 7 open hole in the turning point of " L "
20, screw is consolidated the first outer connecting pole 6 by through-hole 20 and the through-hole 13 of internal layer partition board 1 and the through-hole 13 ' of outer layer partition board 4
It is scheduled between internal layer partition board 1 and outer layer partition board 4, ensures the skeleton of the skeleton connectivity port and interior connecting pole 2 of the first outer connecting pole 6
Connectivity port is in the side of skeleton, as shown in Figure 5 a.By the second outer connecting pole 7 be fixed on internal layer partition board 1 the other side and
Between another outer layer partition board 4, and " L " shape of the transverse direction edge of second outer connecting pole 7 " L " shape and the first outer connecting pole 6 is horizontal
Edge direction is on the contrary, form back-to-back shape.First outer connecting pole 6 is vertical in the horizontal edge upper edge of " L " with the second outer connecting pole 7
Direction is provided with threaded hole 21, for fixed outer connection sheet 8.The thickness of first outer connecting pole 6 and the second outer connecting pole 7 with cake core
3 thickness is equal.
As illustrated in figure 3h, the center of outer connection sheet 8 is provided with through-hole 22, and screw divides connection sheet outside two panels 8 across through-hole 22
It is not fixed on the threaded hole 21 of the first outer connecting pole 6 and the second outer connecting pole 7.
As shown in figure 4, insulation corrugated paper 10 is standby by polytetrafluoro material hot pressing, and width 12mm, total thickness after bending
Degree is the spacing between turns of high temperature superconductor coil.
As shown in Fig. 2, the head end of two hts bands 9 is respectively welded at one end that 5 curvature of connection sheet is small in two panels,
Two hts bands 9 around to opposite.The head end punching for the corrugated paper 10 that insulate, screw sequentially pass through the through-hole of interior connection sheet 5
18 and insulation corrugated paper 10 hole by insulate corrugated paper 10 be fixed on the threaded hole 17 of 2 terminal of interior connecting pole.Two high temperature are super
Conduction band 9 and two thoroughly does away with edge corrugated paper 10 and is coiled into disk-type winding parallel, is wound on respectively on two cake cores 3.Two high-temperature superconductors
It is respectively welded on the first outer connecting pole 6 and the second outer connecting pole 7 with 9 tail end, while the corrugated paper 10 that insulate continues coiling one
Reflexed comes to be clipped in respectively between the first outer connecting pole 6 and outer connection sheet 8 and the second outer connecting pole 7 and outer connection sheet 8 after segment
Between.Since double-cake coils in parallel are around on the contrary, size of current is equal always, magnetic field is cancelled out each other, and coil is integrally presented zero
Inductance.
For the present invention by the quantity of the connection terminal of connecting pole in increase by 2, it is 2n to make the connection terminal of interior connecting pole 2,
Using 2n cake core 3 and 2n-1 internal layer partition board 1, the n group magnetic flux coupled mode cake formulas of the composition of 2n roots hts band 9 may be implemented
Noninductive coil.Radially the outermost layer of front and rear sides is two outer layer partition boards, and centre is sequentially placed cake core, internal layer partition board, cake core.
Two adjacent coil winding-directions are on the contrary, size of current is equal always, and magnetic field is cancelled out each other, and coil overall inductance is zero.N is not small
In 1 integer.
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 are contacted with liquid nitrogen, cooling and good heat dissipation effect.
Claims (10)
1. a kind of cake-shaped high-temperature superconductive noninductive coil, it is characterised in that：The noninductive coil includes outer layer partition board (4), internal layer
Partition board (1), cake core (3), interior connecting pole (2), interior connection sheet (5), the first outer connecting pole (6), the second outer connecting pole (7), outer company
Contact pin (8), hts band (9) and insulation corrugated paper (10)；The outer layer partition board (4), internal layer partition board (1), cake core (3),
Interior connecting pole (2), interior connection sheet (5), the first outer connecting pole (6), the second outer connecting pole (7) and outer connection sheet (8) form cake formula
The skeleton of high-temperature superconductor noninductive coil；Hts band (9) is looped around on cake core (3), and insulation corrugated paper (10) is located at noninductive line
Between each circle superconductive tape of circle；
Internal layer partition board (1) front and rear sides are each in an axial direction, and there are one cake cores (3), and respectively there are one outer for the front and rear sides of two cake cores (3)
Layer partition board (4)；Two outer layer partition boards (4), an internal layer partition board (1) and two cake cores (3) are annular, coaxially arranged；Two
The inner annular edge of a outer layer partition board (4) and two cake cores (3) is radially provided with the identical groove of size (14), in internal layer partition board
(1) inner annular edge is radially provided with and groove (14) straight slot (15) of same size, the position of groove (14) and straight slot (15)
Corresponding, interior connecting pole (2) is inserted into this groove (14) and straight slot (15)；Connection sheet (5) is fixed on interior connecting pole (2) in two panels
On two connection terminals；First outer connecting pole (6) is located at the outer shroud edge of outer layer partition board (4), and the second outer connecting pole (7) is located at interior
The outer shroud edge of layer partition board (1), the first outer connecting pole (6) and the second outer connecting pole (7) be radially fixed to outer layer partition board (4) and
In interlayer between internal layer partition board (1)；A piece of outer connection sheet (8) is fixed on the first outer connecting pole (6), a piece of outer connection sheet
(8) it is fixed on the second outer connecting pole (7).
2. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 1, it is characterised in that：Described internal layer partition board (1) edge
Inner ring is opened there are five first through hole (12), and five first through hole (12) pass through the center line and straight slot at internal layer partition board (1) center
(15) center line at internal layer partition board (1) center is passed through to be separated by 60 ° two-by-two；The cake core (3) is opened logical there are six second along inner ring
Hole (12a), six through-holes (12a) are uniformly distributed；The outer layer partition board (4) is evenly distributed with six third through-holes (12b) along inner ring；Internal layer every
Plate (1), cake core (3) and outer layer partition board (4) are along the uniformly distributed through-hole of inner ring for internal layer partition board (1) and outer layer partition board (4) and cake core
(3) fixation；Outer layer partition board (4), cake core (3) and the lead to the hole site of interior connecting pole (2) correspond, and screw is each passed through outer layer
Two cake cores (3) are separately fixed at outside two by the through-hole of partition board (4), internal layer partition board (1), cake core (3) and interior connecting pole (2)
Between layer partition board (4) and internal layer partition board (1), while interior connecting pole (2) being fixed on outer layer partition board (4) and cake core (3).
3. cake-shaped high-temperature superconductive noninductive coil according to claim 2, it is characterised in that：In the internal layer partition board (1)
On, uniformly distributed six fifth holes (13) at outer shroud；On the outer layer partition board (4), six are provided with close to outer shroud edge
A 6th through-hole (13 '), fifth hole (13) and the 6th through-hole (13 ') are for outer layer partition board (4) and internal layer partition board (1), first
The fixation of outer connecting pole (6) and the second outer connecting pole (7)；Screw passes through on the first outer connecting pole (6) and the second outer connecting pole (7)
The 8th through-hole (20) and the fifth hole (13) on internal layer partition board (1), the 6th through-hole on two outer layer partition boards (4)
First outer connecting pole (6) is fixed between internal layer partition board (1) and an outer layer partition board (4) by (13 '), by the second outer connecting pole
(7) it is fixed between internal layer partition board (1) and another outer layer partition board (4).
4. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 1, it is characterised in that：The interior connecting pole (2) is
One end of I-shaped, " work " word underbeam extends, and the 7th through-hole (16) is provided on this extended end, and the 7th through-hole (16) is used as bone
Frame connectivity port, connect with external circuit；" work " word central sill of interior connecting pole (2) is provided with fourth hole (12c), to outer layer
The fixation of partition board (4) and cake core (3)；Interior connecting pole (2) " work " word upper beam both ends are vertically opened there are two threaded hole (17),
Connection sheet (5) is separately fixed on two threaded holes (17) in two panels；" work " word central sill of interior connecting pole (2) passes through internal layer partition board
1 straight slot (15), " work " word underbeam do not have the groove of extended one end insertion cake core (3), extended one end to be embedded in outer layer partition board
(4) in groove (14), extended part is not embedded into outer layer partition board (4).
5. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 3, it is characterised in that：The first outer connecting pole
(6) it is " L " shape, the upper end level of " L " shape vertical edge draws an extension, this extension is parallel to the horizontal edge of " L " shape, this extension
It is provided with vertically oriented aperture there-through (19), the connectivity port as skeleton in section；Second outer connecting pole 7 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 partition board (1), which is used for first
Outer connecting pole (6) and electrical connection of the second outer connecting pole (7) on the outside of internal layer partition board (1) outer shroud；First outer connecting pole (6) with
Second outer connecting pole (7) is provided with the tenth through-hole (23) in the vertical edge of " L ", and the second outer connecting pole (7) passes through the tenth through-hole (23)
It is fixed on the first outer connecting pole (6)；First outer connecting pole (6) and the second outer connecting pole (7) are provided with the in the turning point of " L "
Eight through-holes (20), screw pass through the fifth hole (13) of the 8th through-hole (20) and internal layer partition board (1) and outer layer partition board (4)
First outer connecting pole (6) is fixed between internal layer partition board (1) and outer layer partition board (4) by the 6th through-hole (13 '), makes to connect outside first
The skeleton connectivity port of column (6) and the skeleton connectivity port of interior connecting pole (2) are connect in the side of skeleton；Second outer connecting pole
(7) it is fixed between the other side of internal layer partition board (1) and another outer layer partition board (4), and the second outer connecting pole (7) " L " shape
Transverse direction edge and the first outer connecting pole (6) " L " shape transverse direction edge on the contrary, i.e. form back-to-back shape；It is connected outside first
Column (6) is vertically provided with threaded hole (21) with the second outer connecting pole (7) on the horizontal edge of " L ", for fixed outer connection sheet
(8)；First outer connecting pole (6) and the thickness of the second outer connecting pole (7) are equal with the thickness of cake core (3).
6. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 3, it is characterised in that：The internal layer partition board (1) exists
First heat emission hole (11) there are six being opened between first through hole (12) and fifth hole (13), six the first heat emission holes (11) are circumferentially
It is uniformly distributed；The inner annular edge of internal layer partition board (1) is radially provided with straight slot (15), and interior connecting pole (2) is inserted into this straight slot (15).
7. according to the cake-shaped high-temperature superconductive noninductive coil described in claim 1 or 6, it is characterised in that：The outer layer partition board (4)
Thickness it is equal with internal layer partition board (1)；The size of the outer diameter of outer layer partition board (4), the outer diameter and heat emission hole (11) of internal layer partition board (1)
By the thickness of hts band (9), the number of turns and turn-to-turn away from determination.
8. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 3, it is characterised in that：The outer layer partition board (4) exists
Second heat emission hole (11 ') there are six being opened between third through-hole (12b) and the 6th through-hole (13 '), six second heat emission hole (11 ') edges
Circumference uniform distribution.
9. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 1, it is characterised in that：It is the outer layer partition board (4), interior
Layer partition board (1) and cake core (3) are made of expoxy glass Steel material；Interior connecting pole (2), interior connection sheet (5), the first outer connecting pole
(6), the second outer connecting pole (7) and outer connection sheet (8) are made of red copper material.
10. cake-shaped high-temperature superconductive noninductive coil described in accordance with the claim 1, it is characterised in that：Two hts bands (9)
Head end is respectively welded at the small one end of connection sheet in two panels (5) curvature, two hts bands (9) around to opposite；Insulation
The head end of corrugated paper (10) punches, and screw sequentially passes through the 11st through-hole (18) and insulation corrugated paper (10) of interior connection sheet (5)
Hole, will insulation corrugated paper (10) be fixed on the threaded hole (17) of interior connecting pole (2)；Two hts bands (9) and two
Insulation corrugated paper (10) is coiled into disk-type winding parallel, is wound on respectively on two cake cores (3)；The tail of two hts bands (9)
End is respectively welded on the first outer connecting pole (6) and the second outer connecting pole (7), while the corrugated paper that insulate (10) continues one section of coiling
Reflexed comes to be clipped in respectively between the first outer connecting pole (6) and outer connection sheet (8) and the second outer connecting pole (7) and outer connection sheet afterwards
(8) between；Since double-cake coils in parallel are around on the contrary, size of current is equal always, magnetic field is cancelled out each other, and coil is integrally presented
Zero inductance.
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| CN201610701884.2A CN106298153B (en) | 2016-08-22 | 2016-08-22 | A kind of cake-shaped high-temperature superconductive noninductive coil |
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| CN106298153B true CN106298153B (en) | 2018-07-17 |
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| CN109286180B (en) * | 2017-07-19 | 2021-09-03 | 中国电力科学研究院 | High-temperature superconducting current limiter |
| WO2019051842A1 (en) * | 2017-09-18 | 2019-03-21 | 陈坚胜 | High-frequency non-inductive pot |
| CN109102987A (en) * | 2018-07-16 | 2018-12-28 | 中国科学院合肥物质科学研究院 | Layer-across connecting structure between a kind of adjacent cake of high-temperature superconductive magnet double-cake coils |
| CN109686528B (en) * | 2018-12-18 | 2020-08-11 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | High-temperature superconducting energy storage magnet device |
| CN110246655A (en) * | 2019-07-25 | 2019-09-17 | 广东电网有限责任公司 | A kind of HTS-SMES magnet |
| CN111508682B (en) * | 2020-02-28 | 2021-07-30 | 北京交通大学 | Composite material framework structure for superconducting current limiter |
| CN113054634B (en) * | 2021-04-20 | 2022-07-29 | 北京交通大学 | Double-cake type inductive superconducting current limiting unit for inductive superconducting direct current limiter |
| CN113035488B (en) * | 2021-04-20 | 2022-10-18 | 北京交通大学 | Double-cake type non-inductive superconducting current-limiting coil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4107685A1 (en) * | 1991-03-09 | 1992-09-10 | Abb Patent Gmbh | SUPRALOWING CURRENT LIMITER |
| CN1095591C (en) * | 1998-09-10 | 2002-12-04 | 中国科学院电工研究所 | Method for winding non-inductive winding and superconductor switch wound by it |
| US6066071A (en) * | 1999-01-15 | 2000-05-23 | Eaton Corporation | Automated transmission downshift control |
| CN101499350B (en) * | 2008-01-28 | 2011-02-16 | 北京云电英纳超导电缆有限公司 | Superconducting magnet framework |
| CN102637502B (en) * | 2012-03-06 | 2014-03-19 | 中国科学院电工研究所 | Barrel type high-temperature superconducting non-inductive coil |
| JP2013247733A (en) * | 2012-05-24 | 2013-12-09 | Toshiba Corp | Superconducting current limiter |
| CN103117145A (en) * | 2013-03-12 | 2013-05-22 | 中国科学院电工研究所 | Insulation and cooling spacing layer of high temperature superconducting non-inductive coil |
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