CN110356242A - High-temperature superconductor band curved surface stackable unit and method, array, magnetic suspension system - Google Patents
High-temperature superconductor band curved surface stackable unit and method, array, magnetic suspension system Download PDFInfo
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- CN110356242A CN110356242A CN201910712395.0A CN201910712395A CN110356242A CN 110356242 A CN110356242 A CN 110356242A CN 201910712395 A CN201910712395 A CN 201910712395A CN 110356242 A CN110356242 A CN 110356242A
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- 239000002887 superconductor Substances 0.000 title claims abstract description 92
- 239000000725 suspension Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005389 magnetism Effects 0.000 claims description 26
- 238000005266 casting Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000003491 array Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011160 research Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000007667 floating Methods 0.000 description 12
- 238000004088 simulation Methods 0.000 description 11
- 238000009826 distribution Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 230000005415 magnetization Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000005339 levitation Methods 0.000 description 6
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000000418 atomic force spectrum Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000954177 Bangana ariza Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910003098 YBa2Cu3O7−x Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 239000003822 epoxy resin Substances 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
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- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
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- H02N15/04—Repulsion by the Meissner effect
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Abstract
The invention discloses high-temperature superconductor band curved surface stackable unit and method, array, magnetic suspension systems, are stacked by several layers high-temperature superconductor band along curved surface and form high-temperature superconductor band curved surface stackable unit.High-temperature superconductor band in compared to the prior art is all the Research Thinking using planar, stacked, the application breaches the yoke of conventional thought, significantly improve the suspendability of high-temperature superconductor band, enabling to high-temperature superconductor band in engineering has more greatly, wider application value, it is low to solve high-temperature superconducting block critical current density in the prior art simultaneously, thermal stability is poor, moisture-sensitive go bad fracture damage the defects of, high-temperature superconductor band and the problem of suspendability deficiency, it is truly realized the effect applied in engineering with high-temperature superconductor band replacement high-temperature superconducting block.
Description
Technical field
The present invention relates to high-temperature superconductor electromagnetic suspension technology fields, and in particular to high-temperature superconductor band curved surface stackable unit and side
Method, array, magnetic suspension system.
Background technique
Traditional high-temperature superconductor electromagnetic suspension technology utilizes YBa2Cu3O7-x(YBCO) high-temperature superconducting block is in tracks of permanent magnetism external magnetic field
In diamagnetism and strong flux pinning properties, make magnetic-levitation train it is static be able to achieve the suspension of self-stabilization under dynamic and lead
To.Currently, high-temperature superconducting block electromagnetic suspension technology small scale magnetic float prototype vehicle on realized it is manned, such as: Southwest Jiaotong University
" Super-Maglev " magnetic float " Maglev-Cobra " magnetic of prototype vehicle and Rio de Daneiro, BRA Federal University and float prototype vehicle,
Be all made of high-temperature superconducting block electromagnetic suspension technology (IEEE Trans.Appl.Supercond., 2018,28 (4): 3601605),
Compared to ReBa2Cu3O7-x(ReBCO) application of high-temperature superconductor band electromagnetic suspension technology is more mature.In the prior art, document
(IEEE Trans.Appl.Supercond., 2015,25 (1): 3600106) the high-performance Y BCO high-temperature superconducting block magnetic reported
Floating system, using bipolar halbach array permanent magnetism track, permanent-magnet material sectional area is 3000mm2, superconduction block material cold height on the scene
For 30mm, levitation gap is that the suspension force density (suspending power that unit high temperature superconductor horizontal sectional area provides) under 10mm reaches
To 4.05N/cm2.However, going deep into high-temperature superconducting block application study, it is low, hot steady also to expose its critical current density
Qualitative poor, moisture-sensitive go bad fracture damage the disadvantages of.
Compared with YBCO bulk, ReBCO high-temperature superconductor band has higher critical current density and mechanical strength, liquid nitrogen
Current density and tension stress under warm area reach 5MA/cm respectively2With 400MPa or more, and realize in power cable field
Commercial applications, there is stable production capacity and quality assurance, therefore, high-temperature superconductor band is in the field of business, and to be considered the following substitution high
The important materials of temperature superconductive bulk.
Currently, application study of the high-temperature superconductor band in magnetic levitation technology has been unfolded, as CN201610644793,
CN201610508613, CN201820525838, CN201910300376, but these existing researchs are all based on high temperature and surpass
The planar, stacked technology (as shown in Figure 6 a) of conduction band material, suspension force density is limited, is difficult to reach conventional high-temperature superconduction block material always
Suspending power, be difficult to carry out engineer application.
Summary of the invention
The purpose of the present invention is to provide high-temperature superconductor band curved surface stackable unit and method, array, magnetic suspension system, with
It solves the problems, such as that suspension force density provided by high-temperature superconductor band in the prior art is lower, engineering application value is weaker, realizes
The suspending power of high-temperature superconductor band is improved, the purpose of the engineering application value of high-temperature superconductor band is improved.
The present invention is achieved through the following technical solutions:
High-temperature superconductor band curved surface stackable unit, several layers high-temperature superconductor band are stacked along curved surface.
Applicant has found in the research process to high-temperature superconductor band magnetic levitation technology, by the application of tracks of permanent magnetism offer
External magnetic field, the magnetic field streamline above horizontal magnetization with vertical magnetization permanent magnet region are not simple horizontal distribution and vertical
Distribution, when using planar, stacked, only a small number of magnetic field streamlines are vertical with strip surface, as shown in Figure 3a；And apply external magnetic field
Direction, which has the suspendability of high-temperature superconducting block or band, to be significantly affected, that is to say, that when high-temperature superconducting block c-axis direction
When (direction of growth) and high-temperature superconductor band surface normal (stacking direction) consistent with the direction of magnetization in face tracks of permanent magnetism region,
System will obtain higher suspendability.This is exactly that the planar, stacked technology of high-temperature superconductor band in the prior art is difficult to always
Reach the suspending power of conventional high-temperature superconduction block material, be difficult to the main reason for carrying out engineer application.In the support of this result of study
Under, applicant spy proposes the high-temperature superconductor band curved surface stackable unit in the application, by several layers high-temperature superconductor band along curved surface
It stacks, more magnetic field streamlines can be made orthogonal with strip surface, to obtain bigger suspendability, as shown in Figure 3b.
High-temperature superconductor band in compared to the prior art is all the Research Thinking using planar, stacked, and the application breaches conventional thought
Yoke, significantly improve the suspendability of high-temperature superconductor band, enable to high-temperature superconductor band in engineering and have it is bigger,
Wider application value, thus solve simultaneously in the prior art high-temperature superconducting block critical current density is low, thermal stability is poor,
Moisture-sensitive go bad fracture damage the defects of, high-temperature superconductor band again suspendability deficiency problem, be truly realized with high temperature surpass
The effect that conduction band material replacement high-temperature superconducting block is applied in engineering, therefore, the application has prominent compared to the prior art
Substantive distinguishing features and significant progress out.
On cross section, scalar using external magnetic field of the curved course of random layer high-temperature superconductor band with locating space
Magnetic potential equivalent curve is consistent.Application external magnetic field of the curved surface completely with locating space from the point of view of theoretically, where high-temperature superconductor band
Scaler potential of magnetic field equivalent curve overlapping when, can have the effect of best raising suspending power.However due to the application in space
The Scaler potential of magnetic field equivalent curve of external magnetic field is not standard curve, therefore to make each high-temperature superconductor band and corresponding scalar
It is almost to be difficult to realize that magnetic potential equivalent curve is completely coincident in practical engineering applications.For this purpose, this programme is preferably, guarantee
The curved course of random layer high-temperature superconductor band on cross section, the Scaler potential of magnetic field equivalent curve using external magnetic field with locating space
Unanimously.Although this preferred embodiment cannot obtain maximum suspending power, have been able to so that high-temperature superconductor band is provided
Suspension force density be easily reached the suspension force density of even more than conventional high-temperature superconduction block material；And due also to bend mode is simple
List, required precision be not high, without a large amount of accurate Modeling Calculations and mold for casting, therefore is very suitable for big model in engineering
Enclose, large area promotes the use, such as can transport extensively in magnetic suspension train, magnetic suspension bearing and electromagnetic ejection system field
With.
The high-temperature superconductor band is ReBCO high temperature superconducting materia.Two generation high-temperature superconductor bands are used, wherein Re is dilute
Earth elements, the preferably ReBa of stainless steel cladding2Cu3O7-x。
The curved surface is arc surface.Arc surface is most facile curved form in engineering, and can be met easily any
The curved course of layer high-temperature superconductor band is consistent using the Scaler potential of magnetic field equivalent curve of external magnetic field with locating space, advantageously
Laboratory is walked out, on Practical Project in high-temperature superconductor band.
High-temperature superconductor band curved surface stacking method, comprising:
(I) coiling band cake；
(II) whole fixed, casting, cure package successively are carried out to band cake；
(III) cutting shaping is carried out to band cake, obtains curved surface stackable unit.
Existing high-temperature superconductor band is planar, stacked, therefore only needs simply to carry out laminating encapsulation, and this Shen
Please in be put forward for the first time the curved surface of high-temperature superconductor band and stack, therefore it is entirely different with the prior art for stacking method, specifically,
High-temperature superconductor band is turned into close round pie first, then whole fixed, casting successively is carried out to band cake, solidifies and seals
Dress, is cut, shaping on the section of band cake, later to obtain complete curved surface stackable unit, it is ensured that curved surface heap
The stacking effect of each layer high-temperature superconductor band in folded unit.
The inside and outside diameter of the band cake, according to the scalar using external magnetic field in space locating for required curved surface stackable unit
Magnetic potential equivalent curve is determined, the inner and outer surfaces of the curved surface stackable unit made as far as possible with corresponding Scaler potential of magnetic field
Equivalent curve is overlapped.Band cake needs to turn to much, and internal diameter, outer diameter are respectively how many, all according to required curved surface heap
Folded unit is designed.Similarly, the inner and outer surfaces of curved surface stackable unit and corresponding Scaler potential of magnetic field equivalent curve
Be overlapped more, then provided by suspending power it is bigger so that the inner and outer surfaces of curved surface stackable unit as far as possible with respectively it is right
The Scaler potential of magnetic field equivalent curve answered is overlapped, and is conducive to the size for improving suspending power as far as possible.
Based on the stacked array of high-temperature superconductor band curved surface stackable unit, several curved surface stackable units are successively formed side by side
Curved surface stacked group, several curved surface stacked groups are successively side by side；The wherein direction side by side of each curved surface stacked group, with single curved surface stacked group
The direction side by side of interior each curved surface stackable unit is mutually perpendicular to.Stacked array in this programme is made of curved surface stackable unit completely,
It is the maximum scheme of suspending power with high suspending power.
Based on the stacked array of high-temperature superconductor band curved surface stackable unit, several curved surface stackable units are successively formed side by side
Curved surface stacked group；It further include the vertical stacking group successively formed side by side by several vertical stacking units, the vertical stacking unit
The high-temperature superconductor band being distributed vertically by several layers stacks；The curved surface stacked group replaces side by side with vertical stacking group.This
Stacked array in scheme is made of curved surface stackable unit and vertical stacking unit, wherein row's curved surface stackable unit composition one
A curved surface stacked group, row's vertical stacking unit form a vertical stacking group, and curved surface stacked group replaces simultaneously with vertical stacking group
Row.The relatively complete mode using curved surface stackable unit of this programme, suspending power is relatively weak, but advantage is to reduce curved surface heap
The dosage of folded unit, the vertical stacking unit of one of simple planar, stacked of local use, relatively low to suspending power demand
Engineer application on, advantageously reduce early-stage preparations time and engineering cost.
Magnetic suspension system, the stacked array are located above tracks of permanent magnetism, and the tracks of permanent magnetism applies outer magnetic for providing
?.
The tracks of permanent magnetism is three pole halbach array structures.Compared with bipolar halbach array structure, three poles
Halbach array structure tracks of permanent magnetism can provide application external magnetic field wider, more evenly, and system is made to obtain higher suspension
Energy.
Compared with prior art, the present invention having the following advantages and benefits:
1, high-temperature superconductor band curved surface stackable unit of the present invention and method, array, magnetic suspension system, compared to the prior art
In high-temperature superconductor band be all Research Thinking using planar, stacked, the application breaches the yoke of conventional thought, significantly mentions
The high suspendability of high-temperature superconductor band, enabling to high-temperature superconductor band in engineering has bigger, widely application
Value, to solve in the prior art that high-temperature superconducting block critical current density is low, thermal stability is poor, moisture-sensitive is rotten disconnected simultaneously
Rhegma bad the defects of, the problem of high-temperature superconductor band suspendability deficiency are truly realized and replace high temperature with high-temperature superconductor band
The effect that superconduction block material is applied in engineering.
2, high-temperature superconductor band curved surface stackable unit of the present invention and method, array, magnetic suspension system, high-temperature superconductor band is
Through realizing commercial applications in power cable industry, production capacity and quality it is more relatively reliable than YBCO high-temperature superconducting block at
It is ripe, so that the application and conventional high-temperature superconduction block material have higher engineering application value and advantage.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 a is the structural schematic diagram of specific embodiment of the invention high-temperature superconductor band curved surface stackable unit；
Fig. 1 b is the schematic diagram of specific embodiment of the invention band cake size selection process；
Fig. 1 c is the structural schematic diagram of specific embodiment of the invention band cake；
Fig. 1 d is the structural schematic diagram of specific embodiment of the invention curved surface stacked group；
Fig. 1 e is the structural schematic diagram of stacked array in the specific embodiment of the invention；
Fig. 2 a is that high-temperature superconductor band magnetic floats working principle diagram under planar, stacked mode；
Fig. 2 b is that high-temperature superconductor band magnetic floats working principle diagram under curved surface stack manner；
Fig. 3 a is that high-temperature superconductor band magnetic floats minimum system schematic diagram under planar, stacked mode；
Fig. 3 b is that high-temperature superconductor band magnetic floats minimum system schematic diagram under curved surface stack manner；
Fig. 4 is tracks of permanent magnetism application external magnetic field streamline and its Scaler potential of magnetic field curve in the specific embodiment of the invention；
Fig. 5 is the structural schematic diagram that specific embodiment of the invention high temperature superconducting tape curved surface stacks magnetic suspension system；
Fig. 6 a is the simulation model of magnetic floating system under planar, stacked mode；
Fig. 6 b is the simulation model of magnetic floating system under curved surface stack manner；
Fig. 7 a is induced current density distributed simulation result under planar, stacked mode；
Fig. 7 b is induced current density distributed simulation result under curved surface stack manner；
Fig. 8 a is resultant magnetic field streamline distribution simulation result under planar, stacked mode；
Fig. 8 b is resultant magnetic field streamline distribution simulation result under curved surface stack manner；
Fig. 9 is suspension force curve simulation result；
Figure 10 is the schematic diagram of stacked array in the specific embodiment of the invention.
Label and corresponding parts title in attached drawing:
1- curved surface stackable unit, 21-L shape angle bar, the stainless steel base of 22-, 23- level magnetize permanent magnet, and 24- magnetizes vertically
Permanent magnet.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1:
High-temperature superconductor band curved surface stackable unit as shown in Figure 1a, by several layers high-temperature superconductor band along curved surface stack and
At.
Theoretical basis of the present invention and used technical solution are specific as follows:
As shown in Figure 2 a, working principle diagram is floated for high-temperature superconductor band magnetic under existing planar, stacked mode, it is assumed that permanent magnetism
Track (y-axis direction) endless along longitudinal direction, ignore magnetic field along longitudinal direction on inhomogeneities, can be by the three-dimensional model simplifying of system
For two dimensional model, when in external magnetic field B relative displacement occurs for band, strip surface generates the induced electricity perpendicular to z-x plane
Flow J, the active force being subject to above tracks of permanent magnetism according to the available band stackable unit of the integral formula of Lorentz force are as follows:
In formula, L be model along longitudinal direction on length, S is sectional area of the band stackable unit in z-x plane, further
The size of the suspending power and guiding force that obtain system is respectively as follows:
Fl=L ∫SJBxdS
Fg=L ∫SJBzdS
According to above formula, when band stacks one timing of sectional area and longitudinal length, increase induced current can be improved with magnetic field
The suspension steering capability of system.The power index model and J of E-J curvecThe Kim model of-B curve shows that raising critical current is close
Spend JcBigger induced current can be obtained, meanwhile, JcIt is influenced by magnetic field size, according to document
(Supercond.Sci.Technol., 31 (2018): 015013) reporting, above tracks of permanent magnetism, the level of band with it is vertical
Put suspend on it steering capability have significantly affect, and then infer JcHave height quick the angle theta of strip surface and magnetic field
Angle theta is then included in J by perceptioncInfluence, then Kim model adjust are as follows:
In formula, k and α are less than 1 parameter, and when θ=0 °, magnetic direction is parallel with strip surface, JcValue is minimum；
When θ=90 °, magnetic direction is orthogonal with strip surface, JcValue is maximum.It, can be to band when magnetic direction is with spatial variations
Material carries out bending stacking, when strip surface is utmostly orthogonal everywhere with magnetic field, band can be made to stack magnetic floating system and obtained
Excellent suspension steering capability, as shown in Figure 2 b.
It as shown in Figure 3a, 3b, is the floating minimum system of high-temperature superconductor band magnetic under planar, stacked and curved surface stack manner respectively
System reduces permanent-magnet material dosage, cross section structure is using halbach array along horizontal to improve tracks of permanent magnetism external magnetic field performance
To arrangement, magnetic field streamline distribution is given in figure.With Fig. 3 a shown in web planarity stack magnetic floating system compared with, shown in Fig. 3 b
Arc band curved surface stacks, and strip surface can be made more orthogonal with magnetic field, to make high-temperature superconductor band magnetic floating system
Obtain higher suspension steering capability.
Preferably, on cross section, the curved course of random layer high-temperature superconductor band is with locating space using outer magnetic
The Scaler potential of magnetic field equivalent curve of field is consistent.
Preferably, the high-temperature superconductor band is ReBCO high temperature superconducting materia.
Preferably, the curved surface is arc surface.
Embodiment 2:
The curved surface stacking method of high-temperature superconductor band curved surface stackable unit, comprising: (I) coiling band cake；(II) successively
Whole fixed, casting, cure package are carried out to band cake；(III) cutting shaping is carried out to band cake, obtains curved surface stacking
Unit.
Preferably, the inside and outside diameter of the band cake, according to the application external magnetic field in space locating for required curved surface stackable unit
Scaler potential of magnetic field equivalent curve be determined, the inner and outer surfaces of the curved surface stackable unit made as far as possible with corresponding mark
Magnetic potential equivalent curve is measured to be overlapped.
It as shown in Fig. 1 b, Fig. 1 c, is limited by high-temperature superconductor band width, curved surface stackable unit uses band cake system
Make, specific technical solution is: utilizing the orthogonality (see Fig. 4) of tracks of permanent magnetism external magnetic field streamline and its Scaler potential of magnetic field curve, reference
The Scaler potential of magnetic field curve of the height region 10~20mm above tracks of permanent magnetism, the inside and outside circular diameter d of band cake is determined by comparing
With D, using cylindrical framework and numerical control filament winder coiling band cake, by mechanical clamp and epoxide-resin glue successively to cake
Whole fixed, casting, cure package are carried out, cutting shaping is carried out to cake using wire cutting, obtains curved surface stackable unit.
It in the present embodiment, is limited by existing high-temperature superconductor band width, circular diameter d=19mm, outer circle in band cake
Diameter D=55mm, the stackable unit after cutting is having a size of 40 × 10 × 12mm3。
Embodiment 3:
Based on the stacked array of high-temperature superconductor band curved surface stackable unit, as shown in Fig. 1 d, Fig. 1 e, several curved surfaces are stacked
Unit successively forms curved surface stacked group side by side, and several curved surface stacked groups are successively side by side；The wherein direction side by side of each curved surface stacked group,
It is mutually perpendicular to the direction side by side of curved surface stackable unit each in single curved surface stacked group.
The present embodiment i.e. by several curved surface stackable units pass through respectively it is longitudinal with it is transversely arranged, obtain band curved surface stacking battle array
Column.
Embodiment 4:
Based on the stacked array of high-temperature superconductor band curved surface stackable unit, several curved surface stackable units are successively formed side by side
Curved surface stacked group；It further include the vertical stacking group successively formed side by side by several vertical stacking units, the vertical stacking unit
The high-temperature superconductor band being distributed vertically by several layers stacks；The curved surface stacked group replaces side by side with vertical stacking group.This
Embodiment is as shown in Figure 10, and lower part is tracks of permanent magnetism, and wherein arrow direction is the direction of magnetization of permanent magnets.
Embodiment 5:
Magnetic suspension system, as shown in figure 5, band curved surface stacked arrangement 1 using curved surface stackable unit respectively along longitudinal direction with cross
To progress array, wherein transversely arranged quantity is identical as the vertical magnetization transversely arranged quantity of permanent magnet 24, and face magnetizes vertically
Permanent magnet 24 is placed.4 pieces of horizontal magnetization permanent magnets 23 and 3 piece magnetize permanent magnet 24 transversely according to halbach array junctions vertically
Structure carries out alternately assembling, after being locked using L shape angle bar 21, is fixed in stainless steel base 22, is finally arranged in the vertical direction again, structure
At tracks of permanent magnetism.
Assuming that tracks of permanent magnetism is along traffic direction (y-axis direction) endless, and unevenness of the magnetic field on traffic direction is not considered
Even property can convert the threedimensional model of system to two dimensional model solution.Firstly, solving tracks of permanent magnetism using Method of Equivalent Currents
The analytic solutions of external magnetic field are based on software COMSOL, tracks of permanent magnetism and high-temperature superconductor band performance parameter under the same conditions, adopt
The arrangement of the planar, stacked as shown in Fig. 6 a, Fig. 6 b magnetic floating system (Type-E) is successively established with H method and curved surface stacked arrangement magnetic is floating
The INDIRECT COUPLING model of system (Type-C), meanwhile, using the power index model and J of E-J curvecThe Kim model of-B curve,
In, Kim model considers magnetic field size, strip surface and magnetic field angle to critical current density J simultaneouslycInfluence.More than being based on
Theoretical, simulation model, respectively to the induced current density distribution of Type-E, Type-C magnetic floating system, resultant magnetic field streamline distribution
And suspension force curve carries out numerical value calculating, as a result as shown in Fig. 7 a, Fig. 7 b, Fig. 8 a, Fig. 8 b, Fig. 9.
Preferably, the application field of the present embodiment includes but is not limited to magnetic suspension train, magnetic suspension bearing and electromagnetic launch
System；Stackable unit uses the ReBa of stainless steel cladding2Cu3O7-x(ReBCO, Re are rare earth element) two generation high-temperature superconductor band
(including single side and dual-face superconducting strip) carries out bending and stacks composition, and stackable unit is made to arrange along longitudinal direction with horizontal array respectively,
Laterally arrangement quantity is equal with vertical magnetization permanent magnet quantity, and places above the vertical permanent magnet of face.
It is provided using external magnetic field by the magnetic field sources (electric current, charge) including tracks of permanent magnetism, concretely permanent magnet, electromagnet
And the application external magnetic field that one of superconducting magnet or multiple combinations provide.
Preferably, tracks of permanent magnetism uses three pole halbach array structures, by 4 pieces of horizontal magnetization and 3 blocks of vertical magnetization permanent magnetism
Body unit is transversely alternately arranged, and permanent-magnet material uses high-performance Ne-Fe-B permanent-magnet material, lateral cross-sectional area 2800mm3, forever
Magnet unit is having a size of 20 × 20 × 100mm3。
In the present embodiment, Type-E simulation model is the control reference carried out using existing planar, stacked mode.Type-
C model is only the analogue simulation carried out according to the application mean camber stack manner.Under the conditions of identical parameters, calculated separately with
The induced current density distribution of upper two kinds of systems, resultant magnetic field streamline distribution and suspension force curve, be detailed in Fig. 7 a, Fig. 7 b, Fig. 8 a,
Fig. 8 b and Fig. 9.Simulation result shows that higher suspendability can be obtained using band curved surface stacked arrangement (Type-C), with
Web planarity stacks (Type-E) and compares, 30mm gap field is cold, the suspending power under 10mm work levitation gap improve it is close
87.22%, specific value see the table below 1:
The different suspending powers (model longitudinal length L=100mm) to suspend under the working clearance of table 1
As can be seen that compared with existing high-temperature superconductor band planar, stacked magnetic floating system, the beneficial effect comprise that
It under identical tracks of permanent magnetism outfield and band performance condition, is stacked using the arc-shaped curved surface of band, in 10mm work levitation gap
Under suspending power improve nearly 87.22%, suspension force density and unit length suspending power have respectively reached 7.6N/cm2And 9127N/
M, and permanent-magnet material sectional area only 2800mm2, meanwhile, also superior to the floating system of the YBCO high-temperature superconducting block magnetic mentioned in background technique
System.In addition, high-temperature superconductor band has been carried out the commercial applications in power cable field, production capacity is with quality than YBCO high
Temperature superconductive bulk it is relatively reliable with it is mature, thus have higher engineering application value and advantage.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. high-temperature superconductor band curved surface stackable unit, which is characterized in that several layers high-temperature superconductor band is stacked along curved surface.
2. high-temperature superconductor band curved surface stackable unit according to claim 1, which is characterized in that on cross section, arbitrarily
The curved course of layer high-temperature superconductor band is consistent using the Scaler potential of magnetic field equivalent curve of external magnetic field with locating space.
3. high-temperature superconductor band curved surface stackable unit according to claim 1, which is characterized in that the high-temperature superconductor band
For ReBCO high temperature superconducting materia.
4. high-temperature superconductor band curved surface stackable unit according to claim 1, which is characterized in that the curved surface is circular arc
Face.
5. special based on the curved surface stacking method of the high-temperature superconductor band curved surface stackable unit any in Claims 1-4
Sign is, comprising:
(I) coiling band cake；
(II) whole fixed, casting, cure package successively are carried out to band cake；
(III) cutting shaping is carried out to band cake, obtains curved surface stackable unit.
6. high-temperature superconductor band curved surface stacking method according to claim 5, which is characterized in that the band cake
Inside and outside diameter makes according to being determined using the Scaler potential of magnetic field equivalent curve of external magnetic field for space locating for required curved surface stackable unit
The inner and outer surfaces of obtained curved surface stackable unit are overlapped with corresponding Scaler potential of magnetic field equivalent curve as far as possible.
7. based on the stacked array of the high-temperature superconductor band curved surface stackable unit any in Claims 1-4, feature exists
Curved surface stacked group is successively formed side by side in, several curved surface stackable units, and several curved surface stacked groups are successively side by side；Wherein each curved surface
The direction side by side of each curved surface stackable unit is mutually perpendicular in the direction side by side of stacked group, with single curved surface stacked group.
8. based on the stacked array of the high-temperature superconductor band curved surface stackable unit any in Claims 1-4, feature exists
In several curved surface stackable units successively form curved surface stacked group side by side；Further include by several vertical stacking units successively side by side
The vertical stacking group of formation, the high-temperature superconductor band that the vertical stacking unit is distributed vertically by several layers stack；It is described
Curved surface stacked group replaces side by side with vertical stacking group.
9. the magnetic suspension system based on the stacked array of claim 7 or 8, which is characterized in that the stacked array is located at forever
Above magnetic orbital, the tracks of permanent magnetism applies external magnetic field for providing.
10. magnetic suspension system according to claim 9, which is characterized in that the tracks of permanent magnetism is three pole halbach arrays
Structure.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009925A (en) * | 2020-07-09 | 2020-12-01 | 清华大学 | High-speed multi-degree-of-freedom flexible wear-free transportation system |
| CN113436788A (en) * | 2021-06-24 | 2021-09-24 | 上海交通大学 | Variable-structure stacked cable topology and packaging method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732609A (en) * | 1980-08-05 | 1982-02-22 | Japan Atom Energy Res Inst | Superconductive coil |
| US20030099870A1 (en) * | 2001-11-28 | 2003-05-29 | Buczek David M. | Superconductor cables and magnetic devices |
| CN101670790A (en) * | 2009-09-22 | 2010-03-17 | 西南交通大学 | Track for high-temperature super-conductivity magnetic levitation transport system |
| CN106059394A (en) * | 2016-05-31 | 2016-10-26 | 西南交通大学 | Method for realizing magnetic suspension state through adoption of closed loop constant current high-temperature superconducting coil |
| CN106340381A (en) * | 2016-09-09 | 2017-01-18 | 西南交通大学 | Manufacturing method of superconducting magnet for high-temperature superconducting maglev train |
| CN108711472A (en) * | 2018-05-16 | 2018-10-26 | 中国科学院合肥物质科学研究院 | A kind of director circle section high-temperature superconductor conductor based on REBCO superconducting tapes |
| CN109545497A (en) * | 2019-01-11 | 2019-03-29 | 西南交通大学 | A kind of stairstepping superconducting magnet and the electrodynamics suspension system with it |
| CN109887700A (en) * | 2019-04-15 | 2019-06-14 | 西南交通大学 | High-temperature superconductor band stackable unit and aligning method, Dewar, magnetic-levitation train and system |
-
2019
- 2019-08-02 CN CN201910712395.0A patent/CN110356242B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732609A (en) * | 1980-08-05 | 1982-02-22 | Japan Atom Energy Res Inst | Superconductive coil |
| US20030099870A1 (en) * | 2001-11-28 | 2003-05-29 | Buczek David M. | Superconductor cables and magnetic devices |
| CN101670790A (en) * | 2009-09-22 | 2010-03-17 | 西南交通大学 | Track for high-temperature super-conductivity magnetic levitation transport system |
| CN106059394A (en) * | 2016-05-31 | 2016-10-26 | 西南交通大学 | Method for realizing magnetic suspension state through adoption of closed loop constant current high-temperature superconducting coil |
| CN106340381A (en) * | 2016-09-09 | 2017-01-18 | 西南交通大学 | Manufacturing method of superconducting magnet for high-temperature superconducting maglev train |
| CN108711472A (en) * | 2018-05-16 | 2018-10-26 | 中国科学院合肥物质科学研究院 | A kind of director circle section high-temperature superconductor conductor based on REBCO superconducting tapes |
| CN109545497A (en) * | 2019-01-11 | 2019-03-29 | 西南交通大学 | A kind of stairstepping superconducting magnet and the electrodynamics suspension system with it |
| CN109887700A (en) * | 2019-04-15 | 2019-06-14 | 西南交通大学 | High-temperature superconductor band stackable unit and aligning method, Dewar, magnetic-levitation train and system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009925A (en) * | 2020-07-09 | 2020-12-01 | 清华大学 | High-speed multi-degree-of-freedom flexible wear-free transportation system |
| CN112009925B (en) * | 2020-07-09 | 2021-07-06 | 清华大学 | High-speed multi-degree-of-freedom flexible wear-free transportation system |
| CN113436788A (en) * | 2021-06-24 | 2021-09-24 | 上海交通大学 | Variable-structure stacked cable topology and packaging method thereof |
| CN113436788B (en) * | 2021-06-24 | 2022-04-29 | 上海交通大学 | Structure of variable-structure stacked cable topology |
| WO2022267224A1 (en) * | 2021-06-24 | 2022-12-29 | 上海交通大学 | Stacked-tape cable topology having variable structure, and encapsulation method therefor |
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