CN102717724A - Method for improving performance of magnetic suspension system and magnetic suspension system thereof - Google Patents
Method for improving performance of magnetic suspension system and magnetic suspension system thereof Download PDFInfo
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- CN102717724A CN102717724A CN201210208893XA CN201210208893A CN102717724A CN 102717724 A CN102717724 A CN 102717724A CN 201210208893X A CN201210208893X A CN 201210208893XA CN 201210208893 A CN201210208893 A CN 201210208893A CN 102717724 A CN102717724 A CN 102717724A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention discloses a method for improving the performance of a magnetic suspension system, that is, the anisotropy characteristic of high-temperature superconductor material is utilized to improve suspension and guiding capacities of a superconducting magnetic suspension system. The method is characterized in that (1) suspension property is improved, that is, the c-axis direction of a high-temperature superconductor block is arranged horizontally in an area that is led by a horizontal component magnetic field, and the c-axis direction of the high-temperature superconductor block is arranged vertically in the area that is led by a vertical component magnetic field; and (2) the guiding performance is improved, that is, the c-axis direction of the high-temperature superconductor block is arranged vertically in the area that is led by the horizontal component magnetic field, and the c-axis direction of the high-temperature superconductor block is arranged horizontally in the area that is led by the vertical component magnetic field. The method designs the arrangement of the c-axis direction of the superconductor block by applying the magnetic field distribution characteristic of an external magnetic field, and achieves the purpose of improving the suspending capacity or the guiding capacity of the system; in addition, the bearing capacity or the guiding capacity of the magnetic suspension system adopting the method can be increased exponentially, and the requirements of heavy duty or curve operation occasions can be met in practical application.
Description
Technical field
The present invention relates to the high-temperature superconducting magnetic levitation field, specifically is method and magnetic suspension system thereof that a kind of anisotropic properties of utilizing high-temperature superconductor material improves the magnetic suspension system performance.
Background technology
For high-temperature superconductor material YBa
2Cu
3O
7-x(be called for short: crystal structure YBCO), its inside have two kinds of Cu-O faces: current-carrying word bank layer Cu-O face and conductive layer Cu-O face, the supercurrent of having generally acknowledged at present mainly occurs on the conductive layer Cu-O face.Conductive layer Cu-O face is separated each other, and whole crystal is like being formed by stacking by some two-dimentional conductive planes, and this has just determined the anisotropy of high-temperature superconductor electric conductivity.Conductive layer Cu-O face (
AbFace) in, conductivity water temperature and depth is high, perpendicular to the direction of conductive layer Cu-O face (
cDirection of principal axis) upward conductivity water temperature and depth is then much lower.Find in the experiment to be parallel to
AbThe critical current density of face is the edge
cAbout 3 times of the direction of principal axis critical current density.
In the high temperature magnetically supported vehicle system of states such as present China, Germany, Russia, Brazil, Japan, Italy, high-temperature superconducting block
AbFace all is designed to be parallel to tracks of permanent magnetism and puts, and has made full use of the middle ferromagnetic material of tracks of permanent magnetism on the one hand and has gathered the high-intensity magnetic field that magnetic pole brings; On the other hand because the restriction of the saturated height of bulk,
AbThe face size is greater than
cThe direction of principal axis size, for same bulk, bulk
AbFace is put over against foreign field can be paved with bigger field region, thereby practices thrift bulk quantity and cost.Discover that design is put based on the bulk of routine, bulk will obtain maximum lift force when being in maximum position, tracks of permanent magnetism vertical component magnetic field, and will obtain the guidance force of maximum when being in maximum position, horizontal component magnetic field.The result shows the placing direction that in actual application, can design bulk, to reach system's magnetic suspension best performance according to magnetic field structure.
Summary of the invention
The purpose of this invention is to provide a kind of high-temperature superconductor that utilizes
cAxle is arranged and is improved the method for magnetic suspension system performance, improves its magnetic suspension performance.
The present invention is achieved in that a kind of method that improves the magnetic suspension system performance of structure, it is characterized in that:
(1) improves suspension property: with high-temperature superconducting block
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place, that is, the zone that horizontal component magnetic field is dominated is with high-temperature superconducting block
cThe direction of principal axis horizontal arrangement, the zone that vertical component magnetic field is dominated is with high-temperature superconducting block
cDirection of principal axis is vertically arranged;
(2) improve steering capability: with high-temperature superconducting block
cThe vertical layout of leading magnetic direction at direction of principal axis and control position place, place, that is, in the leading zone, horizontal component magnetic field with high-temperature superconducting block
cDirection of principal axis vertically arranges, in the leading zone, vertical component magnetic field with high-temperature superconducting block
cThe direction of principal axis horizontal arrangement.
A kind of magnetic suspension system that utilizes said method to make up is characterized in that: comprise by permanent magnet and gather track that magnetic material etc. constitutes, be fixed in the low-temperature (low temperature) vessel in the car body shelf that the low-temperature (low temperature) vessel internal fixation has high-temperature superconducting block, high-temperature superconducting block is by it
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place.
A kind of another magnetic suspension system that utilizes said method to make up is characterized in that: comprise by permanent magnet and gather track that magnetic material etc. constitutes, be fixed in the low-temperature (low temperature) vessel in the car body shelf that the low-temperature (low temperature) vessel internal fixation has high-temperature superconducting block, high-temperature superconducting block is by it
cDirection of principal axis and vertical layout of leading magnetic direction that belongs to the control position place.
The invention has the advantages that: pass through to change bulk among the present invention
cAxial arranging improved its magnetic suspension performance, in practical application, can be according to actual needs (improving lift force or guidance force) and tracks of permanent magnetism structure and Distribution of Magnetic Field thereof design bulk
cDirection of principal axis is arranged, with the implementation target.The invention is not restricted to the type and the Distribution of Magnetic Field constructional feature thereof of tracks of permanent magnetism, be applicable to the one pole and the multistage Distribution of Magnetic Field structure of present widespread use.
Description of drawings
Fig. 1 a is that the corresponding high-temperature superconducting block that improves suspension property is arranged scheme drawing, and wherein the thin arrow in the superconduction block material is represented it
cDirection of principal axis, the thick arrow in the track is represented the direction of magnetization of permanent magnet.
Fig. 1 b is that the corresponding high-temperature superconducting block that improves steering capability is arranged scheme drawing, and wherein the thin arrow in the superconduction block material is represented it
cDirection of principal axis, the thick arrow in the track is represented the direction of magnetization of permanent magnet.
Fig. 2 a is the corresponding magnetic suspension system structural representation of Fig. 1 a, and wherein the thin arrow in the superconduction block material is represented it
cDirection of principal axis, the thick arrow in the track is represented the direction of magnetization of permanent magnet.
Fig. 2 b is the corresponding magnetic suspension system structural representation of Fig. 1 b, and wherein the thin arrow in the superconduction block material is represented it
cDirection of principal axis, the thick arrow in the track is represented the direction of magnetization of permanent magnet.
Fig. 3 distributes with Halbach tracks of permanent magnetism structure and magnetic flux line for checking, and wherein arrow is represented the direction of magnetization of permanent magnet.
Fig. 4 is for verifying with Halbach tracks of permanent magnetism top 15 mm place Distribution of Magnetic Field: close magnetic field, normal direction and tangential magnetic field component.
Fig. 5 a, b are different
cSuperconduction block material that direction of principal axis is put and horizontal foreign field effect scheme drawing.
Among the figure: 101, track, 102, low-temperature (low temperature) vessel, 103, high-temperature superconducting block.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made detailed description:
The present invention provides a kind of method that improves the magnetic suspension system performance at this, and it utilizes high-temperature superconductor
cAxle is arranged and is improved the performance of magnetic suspension system.
(1) improves suspension property: with high-temperature superconducting block
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place, that is, the zone that horizontal component magnetic field is dominated is with high-temperature superconducting block
cThe direction of principal axis horizontal arrangement, the zone that vertical component magnetic field is dominated is with high-temperature superconducting block
cDirection of principal axis is vertically arranged;
(2) improve steering capability: with high-temperature superconducting block
cThe vertical layout of leading magnetic direction at direction of principal axis and control position place, place, that is, in the leading zone, horizontal component magnetic field with high-temperature superconducting block
cDirection of principal axis vertically arranges, in the leading zone, vertical component magnetic field with high-temperature superconducting block
cThe direction of principal axis horizontal arrangement.
A kind of magnetic suspension system that utilizes said method to make up; Like Fig. 2 a; This system includes by permanent magnet and gathers track 101 that magnetic material etc. constitutes, is fixed in the low-temperature (low temperature) vessel 102 in the car body shelf, and the low-temperature (low temperature) vessel internal fixation has high-temperature superconducting block 103, and high-temperature superconducting block 103 is by it
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place.This system suspension property for original system will be largely increased.
A kind of another magnetic suspension system that utilizes said method to make up; It is characterized in that: include by permanent magnet and gather track 101 that magnetic material etc. constitutes, be fixed in the low-temperature (low temperature) vessel 102 in the car body shelf; The low-temperature (low temperature) vessel internal fixation has high-temperature superconducting block 103, and high-temperature superconducting block 103 is by it
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place.This system steering capability for original system will be largely increased.
In high temperature superconducting magnetic suspension system, the suffered electromagnetic force of superconduction block material and the size and the gradient of foreign field are closely related.Wherein, the graded of foreign field decision superconductor in-to-in inducing current size, inducing current and foreign field determine final Lorentz force, and the vertical and horizontal component of lift force and the corresponding Lorentz force of guidance force difference.Therefore, given play to best magnetic suspension performance, must design the form of putting of bulk according to the foreign field structure in order to make bulk.
Fig. 3 and 4 has provided embodiment respectively with the magnetic flux line distribution of Halbach tracks of permanent magnetism and the Distribution of Magnetic Field at the surperficial 15mm of distance place, and as can beappreciated from fig. 4 vertical magnetic-field component is maximum in two permanent magnet pole positions, and is maximum in tracks of permanent magnetism by-level magnetic-field component.The position of magnetic pole place, bulk
Ab(bulk when face is put over against tracks of permanent magnetism
cAxle is parallel with magnetic direction) best results; But in the tracks of permanent magnetism midway, magnetic flux line nearly all is along continuous straight runs, i.e. bulk
cAxle is vertical with magnetic direction, has at this moment high current density more
AbFace does not fully act on foreign field, and is as shown in Figure 5, when bulk
cWhen the axle placing direction is identical with outer magnetic field direction, like Fig. 5 (b), action effect will be better.
For verifying this design philosophy, difference is put the monolithic bulk of form and implement checking in the magnetic suspension performance at diverse location place.For narrating conveniently, the magnetic pole place maximum vertical component magnetic field calls crest, and the minimum place of the vertical magnetic-field component of orbit centre is called trough, and trough also is the maximum place of horizontal component ofmagnetic field.Lift force and the guidance force of utilizing the high-temperature superconducting magnetic levitation proving installation that crest and trough place level are put the monolithic bulk of (conventionally form) and vertical display are tested, and the superconduction block material sample is of a size of long 64mm, wide 32mm, high 13mm; The length direction of bulk is parallel with the track longitudinal direction in the time of test.
Implement checking and show that crest place lift force is greater than trough place lift force when the bulk level is put; And during the bulk vertical display, trough place lift force is greater than crest place lift force; And the bulk lift force level of being greater than of trough place vertical display is put the lift force of bulk.The bulk that former wave trough position place level is put in the result of implementation explanation is to improve its suspension property when changing vertical display into.Consider that it is 32mm that the bulk level is put the width that occupies over against tracks of permanent magnetism, and after the vertical display, this width becomes the height 13mm (as shown in Figure 5) of original bulk, promptly under same space, bulk at least can vertical display 2.Lift force in the time of can extrapolating 2 bulks of vertical display according to the principle of approximate stack.At the wave trough position place, when 2 bulks of vertical display, the maximum lift force at test height 10mm place is approximately: 104.6N * 2=209.2N, the 92.1N that puts much larger than level.The vertical display form is adopted in this explanation at the trough place, make to have the more bulk of high current density
AbFace and track tangential component magnetic field fully act on, and the suspension property of bulk also has the very big rising space.
The guidance force aspect, when the bulk level was put, trough place guidance force was maximum, and crest place guidance force is less; During the bulk vertical display, situation is opposite, and the guidance force at crest place is greater than the guidance force at trough place.Above presentation of results if want to improve the stability of original magnetic suspension system, can change the bulk that former crest location place level is put into vertical display.At test height 18mm, maximum transversal skew 5mm place, at the crest location place, when bulk is put when becoming vertical display from level, its maximum guidance force will be increased to-17.3N from-3.4N.If consider the bulk of same width regions, can also be similar to during vertical display and consider multiply by coefficient 2, the guidance force of this moment is raised the efficiency further increasing.
Bulk is in maximum lift force of different disposing ways and test position place and guidance force during the cold height 30mm of table 1
Table 1 provides maximum lift force and the guidance force data of the following bulk of typical operating conditions (a cold height 30mm) at different disposing ways and test position, from table 1, can find out through changing bulk
cThe axial method of improving its magnetic suspension performance of arranging is feasible and effect is remarkable.Put the level of bulk and become after the vertical display at the wave trough position place, and the lift force of bulk will be similar to the lifting of acquisition from 92.1N → 209.2 N, increase 2.27 times; And when crest location after the vertical display, the approximate raising that obtains from 3.4 N → 34.6 N of guidance force increases 10.2 times.Therefore, in practical application, can be according to the actual requirements (improving lift force or guidance force), design bulk in conjunction with the structure of tracks of permanent magnetism and Distribution of Magnetic Field thereof
cDirection of principal axis is arranged, with the implementation target.
This patent removes the exception of case shown in the embodiment, also comprises the application scenarios such as tracks of permanent magnetism that have one pole, multistage Distribution of Magnetic Field characteristic to all kinds of.
Claims (3)
1. a method that improves the magnetic suspension system performance is characterized in that: (1) raising suspension property: with high-temperature superconducting block
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place, that is, the zone that horizontal component magnetic field is dominated is with high-temperature superconducting block
cThe direction of principal axis horizontal arrangement, the zone that vertical component magnetic field is dominated is with high-temperature superconducting block
cDirection of principal axis is vertically arranged; (2) improve steering capability: with high-temperature superconducting block
cThe vertical layout of leading magnetic direction at direction of principal axis and control position place, place, that is, in the leading zone, horizontal component magnetic field with high-temperature superconducting block
cDirection of principal axis vertically arranges, in the leading zone, vertical component magnetic field with high-temperature superconducting block
cThe direction of principal axis horizontal arrangement.
2. magnetic suspension system that utilizes the said method of claim 1 to make up; It is characterized in that: comprise by permanent magnet and gather track (101) that magnetic material etc. constitutes, be fixed in the low-temperature (low temperature) vessel (102) in the car body shelf; The low-temperature (low temperature) vessel internal fixation has high-temperature superconducting block (103), and high-temperature superconducting block (103) is by it
cDirection of principal axis is arranged in parallel with the leading magnetic direction at control position place, place.
3. magnetic suspension system that utilizes the said method of claim 1 to make up; It is characterized in that: comprise by permanent magnet and gather track (101) that magnetic material etc. constitutes, be fixed in the low-temperature (low temperature) vessel (102) in the car body shelf; The low-temperature (low temperature) vessel internal fixation has high-temperature superconducting block (103), and high-temperature superconducting block (103) is by it
cDirection of principal axis and vertical layout of leading magnetic direction that belongs to the control position place.
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| CN201210208893XA CN102717724A (en) | 2012-06-25 | 2012-06-25 | Method for improving performance of magnetic suspension system and magnetic suspension system thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667339A (en) * | 2016-04-02 | 2016-06-15 | 成都浮星科技有限公司 | Magnetic suspension carrying tool |
| CN106080256A (en) * | 2016-08-03 | 2016-11-09 | 西南交通大学 | A kind of improve the method for vehicle magnetic suspension performance, high temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106218441A (en) * | 2016-08-03 | 2016-12-14 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106240398A (en) * | 2016-08-03 | 2016-12-21 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106240399A (en) * | 2016-08-03 | 2016-12-21 | 西南交通大学 | A kind of improve the method for vehicle magnetic suspension performance, high temperature superconducting magnetic suspension system and magnetic suspension train |
| CN107319840A (en) * | 2017-08-08 | 2017-11-07 | 西南交通大学 | A kind of magnetic suspension display platform |
| CN107810359A (en) * | 2015-03-31 | 2018-03-16 | 地铁实验室公司 | The levitated transport vehicle and system of cryostat and correlation |
| 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 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810359A (en) * | 2015-03-31 | 2018-03-16 | 地铁实验室公司 | The levitated transport vehicle and system of cryostat and correlation |
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| CN106080256A (en) * | 2016-08-03 | 2016-11-09 | 西南交通大学 | A kind of improve the method for vehicle magnetic suspension performance, high temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106218441A (en) * | 2016-08-03 | 2016-12-14 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106240398A (en) * | 2016-08-03 | 2016-12-21 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106240399A (en) * | 2016-08-03 | 2016-12-21 | 西南交通大学 | A kind of improve the method for vehicle magnetic suspension performance, high temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106240399B (en) * | 2016-08-03 | 2019-05-21 | 西南交通大学 | A kind of method, high temperature superconducting magnetic suspension system and magnetic suspension train improving vehicle magnetic suspension performance |
| CN106240398B (en) * | 2016-08-03 | 2019-07-02 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN107319840A (en) * | 2017-08-08 | 2017-11-07 | 西南交通大学 | A kind of magnetic suspension display platform |
| 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 |
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Application publication date: 20121010 |