CN101192463A - High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train - Google Patents
High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train Download PDFInfo
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- CN101192463A CN101192463A CN 200610118853 CN200610118853A CN101192463A CN 101192463 A CN101192463 A CN 101192463A CN 200610118853 CN200610118853 CN 200610118853 CN 200610118853 A CN200610118853 A CN 200610118853A CN 101192463 A CN101192463 A CN 101192463A
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Abstract
The invention relates to a high-temperature superconductive suspension magnet, in particular to a high-temperature superconductive magnet applied to the electromagnetic suspension typed high speed magnetic suspension train, which comprises a high-temperature superconductive excitation windings and a cryogenic liquid nitrogen container. The invention is characterized in that the high-temperature superconductive magnet has no iron core; the cryogenic liquid nitrogen container has two sealed surround cavities, the center to center spacing of which is the same as the pole spacing of the two magnetic poles of the high-temperature superconductive magnet. The superconductive excitation windings are respectively arranged in the two seal surround cavities and are connected with an external circuit and a refrigeration system using two connectors arranged on the exterior of the cryogenic liquid nitrogen container.
Description
Technical field:
The invention relates to the levitated magnet of high-temperature superconductor, particularly about a kind of high-temperature superconducting magnet structure that is applied to electromagnetic suspension type high speed magnetic levitation train.
Background technology:
In the magnetic suspension traffic field, is representative at present mainly with TR (Transrapid) technology of Germany and HSST (the High Speed Surface Transportaion) technology of Japan, China also adopted Germany the TR technical architecture a commerce demonstration working line from Pudong Long Yanglu to the International airport.The suspension system of this TR technology mainly contains long stator, levitating electromagnet and pole supports iron yoke three big parts, wherein except that long stator partly for being laid on the fixing path, levitating electromagnet and pole supports iron yoke are arranged on walking frame both sides, train bottom, and corresponding with the long stator of two-column parallel on the path that is laid in.Levitating electromagnet comprises pole core, excitation winding and onboard line generator windings.When excitation winding is switched on, produce attraction between levitating electromagnet and long stator, the levitating electromagnet that will be in the long stator below attracts upwards, by pole supports iron yoke the walking frame that is fixed on the bottom, compartment is risen, thereby whole train is suspended on the path.In the process of train operation, can be as required and the different exciting currents of regulating excitation winding of external condition, reach stable suspension.
This type suspension magnet of often leading is owing to technology maturation, have certain advantage, but this its exciting current density of type suspension magnet of often leading is limit by excitation winding material and heat-sinking capability, its magnetic field intensity is not high, finally having influence on the suspending power of magnetic-levitation train, also is that bearing capacity is restricted.For this reason, many documents and materials propose to make with superconductor and technology the suspension system of magnetic-levitation train, wherein typical is 200410009084.1 as application number, name is called the Chinese invention patent application of " high-temperature superconducting magnetic levitation device ", has disclosed a kind of high-temperature superconducting magnet that is made of liquid nitrogen cryogenics Dewar, U sections core and high temperature superconductor coil in this patent application.Application number is 99114953.X, and the Chinese invention patent application that name is called " a kind of superconducting magnetic suspension system " also discloses a kind of mainly by high-temperature superconducting magnet winding, U sections core, often lead the magnetic levitation system that control coil, liquid nitrogen vessel and liquid nitrogen vessel lid are formed.These high-temperature superconductor levitated magnet that mainly are made of liquid nitrogen cryogenics Dewar or container, iron core, high temperature superconductive wire coil or winding and the aerotrain system that is made up of high-temperature superconductor bulk and permanent magnetic guideway are (as application number 01128867.1, name is called " a kind of superconductive magnetic suspension train system ") compare near little, the no track of track foundation construction cost the advantage of ferromagnetic substance to the harm of train operation, also being can be by controlling the suspended state that exciting current come the ACTIVE CONTROL train.But this high-temperature superconductor levitated magnet is introduced iron core for increasing magnetic field intensity, and this just makes himself weight big, and problem is little low-speed maglev train, but high-speed maglev train has been become to influence one of key factor of bearing capacity.
Summary of the invention:
The object of the present invention is to provide a kind of high-temperature superconducting magnet that is applied to electromagnetic suspension type high speed magnetic levitation train, solve the technical problem of high-temperature superconducting magnet own wt with magnet exciting coil.
The technical scheme that the present invention solves the problems of the technologies described above is:
A kind of high-temperature superconducting magnet that is applied to electromagnetic suspension type high speed magnetic levitation train comprises high-temperature superconductor excitation winding and low temperature liquid nitrogen container, and it is characterized in that: this high-temperature superconducting magnet does not have iron core; This low temperature liquid nitrogen container has centre-to-centre spacing two closed-loops identical with these high-temperature superconducting magnet two magnetic pole pole spans around cavity; This superconduction excitation winding is located at these two closed-loops respectively in cavity, and is connected with refrigerating system with external circuit with two connectors that are arranged on the low temperature liquid nitrogen external container respectively.
It is characterized in that: these two closed-loops are interconnected around cavity.
It is characterized in that: be provided with and lay respectively at two closed-loops of low temperature liquid nitrogen container and in the middle cavity of cavity, be used for the non magnetic mounting bracket that is connected with the magnetic suspension train walking frame, the onboard line generator windings is installed on this non-magnetic fixed support.
The invention has the beneficial effects as follows:
1. the ingenious superconductor that utilizes can flow through the current characteristics more much bigger than conventional conductor under the condition of same section, therefore can needn't adopt iron core just can obtain to strengthen the effect of magnetic field intensity by strengthening exciting current.
2. because need not iron core, adding the current density that the superconduction excitation winding can bear be often to lead more than 10 times of suspension magnet aluminium foil magnet exciting coil, and its volume is less than resistive magnet, so weight of the present invention greatly alleviates.
3. because the alleviating of weight both has been of value to the raising bearing capacity, more help alleviating the various adverse effects that the locomotive deadweight is produced in the train high-speed cruising.
Description of drawings:
Fig. 1 is the structural representation of the present invention and the whole suspension system of long stator guide rail.
Fig. 2 is the limited no analytical model in 3 D electromagnetic of the present invention field.
Fig. 3 is the distribution situation of the magnetic line of force in Fig. 2 model The results.
Fig. 4 is the size of air gap flux density in Fig. 2 model The results.
Embodiment:
See also shown in Figure 1ly, superconductive suspension magnet 2 of the present invention comprises liquid nitrogen vessel 6 and high-temperature superconductor excitation winding 3.This low temperature liquid nitrogen container 6 has centre-to-centre spacing d two closed-loops identical with these high-temperature superconducting magnet two pole pitches around cavity 61, each closed-loop is placed the second generation belt material of high temperature superconduct by the YBCO series of high-temperature superconducting magnet material (such as system or yttrium system high-temperature superconducting body band or overlay film in cavity 61) the high-temperature superconductor excitation winding 3 of coiling, and fill liquid nitrogen is arranged.These place the high-temperature superconductor excitation winding 3 of two closed-loops in cavity 61 to be the serial connection connection, and respectively by being positioned at the connector 7 outside liquid nitrogen vessel 6 two ends, each the high-temperature superconductor excitation winding 3 that is connected in series are connected with refrigeration plant with external circuit.After passing to exciting current, above-mentioned high-temperature superconductor excitation winding 3 just formed the magnetic pole of N, two correspondences of S, produce magnetic attraction with the long stator 1 of the long stator iron core with stator winding 12 11 that is positioned at the linear induction machine that lays along path directly over it, upwards pick up the present invention, the walking frame by train that the present invention is fixed makes permutation vehicle suspension certain distance position on path.
Though being provided with, the present invention can work the iron core that strengthens the action of a magnetic field, but because the superconductor low resistance can be by the characteristic of big electric current, utilize the method that increases exciting current to obtain required magnetic field intensity easily, magnetic line of force distribution situation (see figure 3) by the 3 D electromagnetic field finite element analysis model of being made up of long stator iron core 11 of the present invention and two groups of excitation winding 3 (seeing shown in Figure 2) being analyzed gained and its air gap are when 60～100mm and 160～200mm, and magnetic flux density B all reaches the demand that 0.7 tesla's (see figure 4) can fully satisfy the German TR series magnetic suspension train that China introduces.
Because the present invention does not have iron core, also just there is no need to use the pole supports iron yoke of prior art to fix connection and the onboard line generator windings is installed, the present invention is respectively arranged with a non magnetic mounting bracket 7 in two closed-loops of liquid nitrogen vessel 6 in the middle cavity of cavity 61 for this reason, this non magnetic mounting bracket 7 of mat is fixedly connected on the present invention on the walking frame of magnetic suspension train bottom, and onboard line generator windings 4 also is arranged in the line embedding groove on this non magnetic mounting bracket 7.This non magnetic mounting bracket 7 can use various high-intensity engineering plastics (as polytetrafluoroethylene etc.), and perhaps various lightweight nonmagnetic metal and alloy (as aluminium alloy etc.) made can further alleviate weight of the present invention.
Two closed-loops of low temperature liquid nitrogen container 6 of the present invention are interconnected around cavity 61 usefulness passages 62; Be interconnected but also these two closed-loops can be combined to form around cavity 61 adjacent mid portions.
Claims (3)
1. a high-temperature superconducting magnet that is applied to electromagnetic suspension type high speed magnetic levitation train comprises high-temperature superconductor excitation winding and low temperature liquid nitrogen container, and it is characterized in that: this high-temperature superconducting magnet does not have iron core; This low temperature liquid nitrogen container has centre-to-centre spacing two closed-loops identical with these high-temperature superconducting magnet two magnetic pole pole spans around cavity; This superconduction excitation winding is located at these two closed-loops respectively in cavity, and is connected with refrigerating system with external circuit with two connectors that are arranged on the low temperature liquid nitrogen external container respectively.
2. the high-temperature superconducting magnet that is applied to electromagnetic suspension type high speed magnetic levitation train according to claim 1 is characterized in that: these two closed-loops are interconnected around cavity.
3. the high-temperature superconducting magnet that is applied to electromagnetic suspension type high speed magnetic levitation train according to claim 1, it is characterized in that: be provided with and lay respectively at two closed-loops of low temperature liquid nitrogen container and in the middle cavity of cavity, be used for the non magnetic mounting bracket that is connected with the magnetic suspension train walking frame, the onboard line generator windings is installed on this non-magnetic fixed support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101188530A CN101192463B (en) | 2006-11-29 | 2006-11-29 | High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train |
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| CN2006101188530A CN101192463B (en) | 2006-11-29 | 2006-11-29 | High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train |
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| CN101192463A true CN101192463A (en) | 2008-06-04 |
| CN101192463B CN101192463B (en) | 2011-06-22 |
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Cited By (12)
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| CN102263474A (en) * | 2011-05-27 | 2011-11-30 | 北京交通大学 | High-temperature superconducting linear motor driving device for non-iron-core-type track transportation |
| CN103065759A (en) * | 2013-01-24 | 2013-04-24 | 中国科学院电工研究所 | Superconducting magnet supporting and positioning system |
| CN103723053A (en) * | 2013-12-02 | 2014-04-16 | 平面发电机发展有限公司 | Plane generator by utilizing maglev system |
| WO2015121507A3 (en) * | 2015-03-31 | 2015-12-30 | Metrolab | Cryostat and associated maglev transport vehicle and system |
| CN105680667A (en) * | 2016-03-04 | 2016-06-15 | 西南交通大学 | High-temperature superconducting linear induction motor driving apparatus used for linear traction |
| WO2016184984A1 (en) * | 2015-05-19 | 2016-11-24 | Metrolab | Magnetic levitation transport system |
| CN107257751A (en) * | 2015-02-11 | 2017-10-17 | 卡尔斯鲁厄技术研究所 | The magnetic suspension train run on track |
| CN109273197A (en) * | 2018-09-07 | 2019-01-25 | 西南交通大学 | A kind of medium-and low-speed maglev train levitating electromagnet structure |
| CN109765065A (en) * | 2019-03-04 | 2019-05-17 | 西南交通大学 | A kind of vertical electric suspension test platform |
| CN110453189A (en) * | 2019-09-18 | 2019-11-15 | 上海超导科技股份有限公司 | Continuous apparatus based on technology growth REBCO superconducting film of offing normal |
| CN112309670A (en) * | 2019-07-31 | 2021-02-02 | 布鲁克瑞士股份公司 | Magnet coil segment with integrated joint, in particular high-temperature superconducting-low-temperature superconducting joint, and associated magnet assembly |
| CN112848913A (en) * | 2021-03-18 | 2021-05-28 | 福建师范大学 | Synchronous lifting system of high-temperature superconducting maglev train and field cooling method |
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| JP2974108B2 (en) * | 1993-10-13 | 1999-11-08 | 財団法人国際超電導産業技術研究センター | Composite of high temperature superconducting bulk and coil magnet |
| US5602430A (en) * | 1994-05-23 | 1997-02-11 | Grumman Aerospace Corporation | Superconducting electromagnet arrangement for a magnetic levitation system |
| CN1292600A (en) * | 1999-06-24 | 2001-04-25 | 西南交通大学 | Superconducting magnetic suspension system |
| CN1288018C (en) * | 2001-09-18 | 2006-12-06 | 西南交通大学 | Superconductive magnetic suspension train system |
| AU2003282893A1 (en) * | 2002-10-01 | 2004-04-23 | Magnemotion, Inc. | Suspending, guiding and propelling vehicles using magnetic forces |
| CN1569511B (en) * | 2004-05-12 | 2010-10-06 | 清华大学 | High-temperature superconductive magnetic levitation device |
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2006
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| CN102263474B (en) * | 2011-05-27 | 2013-01-23 | 北京交通大学 | High-temperature superconducting linear motor driving device for non-iron-core-type track transportation |
| CN102263474A (en) * | 2011-05-27 | 2011-11-30 | 北京交通大学 | High-temperature superconducting linear motor driving device for non-iron-core-type track transportation |
| CN103065759A (en) * | 2013-01-24 | 2013-04-24 | 中国科学院电工研究所 | Superconducting magnet supporting and positioning system |
| CN103065759B (en) * | 2013-01-24 | 2015-04-22 | 中国科学院电工研究所 | Superconducting magnet supporting and positioning system |
| CN103723053A (en) * | 2013-12-02 | 2014-04-16 | 平面发电机发展有限公司 | Plane generator by utilizing maglev system |
| CN103723053B (en) * | 2013-12-02 | 2015-10-28 | 平面发电机发展有限公司 | Utilize the flat generator of magnetic suspension system |
| CN107257751A (en) * | 2015-02-11 | 2017-10-17 | 卡尔斯鲁厄技术研究所 | The magnetic suspension train run on track |
| WO2015121507A3 (en) * | 2015-03-31 | 2015-12-30 | Metrolab | Cryostat and associated maglev transport vehicle and system |
| US10814730B2 (en) | 2015-03-31 | 2020-10-27 | Metrolab | Cryostat and associated maglev transport vehicle and system |
| FR3034365A1 (en) * | 2015-03-31 | 2016-10-07 | Metrolab | CRYOSTAT, MAGNETICALLY SUSTAINED TRANSPORT VEHICLE AND ASSOCIATED MAGNETIC SUSPENSION TRANSPORT SYSTEM |
| 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 |
| FR3036335A1 (en) * | 2015-05-19 | 2016-11-25 | Metrolab | MAGNETICALLY SUSTAINED TRANSPORT SYSTEM |
| WO2016184984A1 (en) * | 2015-05-19 | 2016-11-24 | Metrolab | Magnetic levitation transport system |
| CN105680667A (en) * | 2016-03-04 | 2016-06-15 | 西南交通大学 | High-temperature superconducting linear induction motor driving apparatus used for linear traction |
| CN109273197A (en) * | 2018-09-07 | 2019-01-25 | 西南交通大学 | A kind of medium-and low-speed maglev train levitating electromagnet structure |
| CN109765065A (en) * | 2019-03-04 | 2019-05-17 | 西南交通大学 | A kind of vertical electric suspension test platform |
| CN112309670A (en) * | 2019-07-31 | 2021-02-02 | 布鲁克瑞士股份公司 | Magnet coil segment with integrated joint, in particular high-temperature superconducting-low-temperature superconducting joint, and associated magnet assembly |
| US11923132B2 (en) | 2019-07-31 | 2024-03-05 | Bruker Switzerland Ag | Solenoidal magnet section with integrated joints, in particular HTS-LTS joints, and associated magnet coil assembly |
| CN110453189A (en) * | 2019-09-18 | 2019-11-15 | 上海超导科技股份有限公司 | Continuous apparatus based on technology growth REBCO superconducting film of offing normal |
| CN112848913A (en) * | 2021-03-18 | 2021-05-28 | 福建师范大学 | Synchronous lifting system of high-temperature superconducting maglev train and field cooling method |
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| CN101192463B (en) | 2011-06-22 |
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Owner name: TONGJI UNIVERSITY Free format text: FORMER OWNER: SHANGHAI MAGNETIC SUSPENSION COMMUNICATION ENGINEERING TECHNOLOGY RESEARCH CENTE Effective date: 20131202 |
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Effective date of registration: 20131202 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee after: Tongji University Address before: 201204 No. 2520, Pudong, Shanghai, Longyang Road Patentee before: Shanghai Magnetic Suspension Communication Engineering Technology Research Cente |