CN205800824U - A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train - Google Patents
A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train Download PDFInfo
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- CN205800824U CN205800824U CN201620752575.3U CN201620752575U CN205800824U CN 205800824 U CN205800824 U CN 205800824U CN 201620752575 U CN201620752575 U CN 201620752575U CN 205800824 U CN205800824 U CN 205800824U
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Abstract
A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train, to realize the self-stabilization suspension of train in the case of not having control system, and suspension stiffness is higher, and resistance and energy consumption are relatively low.Including train body, track, and drive the linear electric motors of train body orbital motion.Described track both sides are respectively installed with one group of coil, and often group coil is made up of along track bearing of trend spaced Zero flux coil some.The two-sided permanent magnet array that on described train body, lateral separation is corresponding with coil, two-sided permanent magnet array includes being positioned at the upper straight line style Halbach array of more than Zero flux coil and being positioned at the bottom linear Halbach array of below Zero flux coil, exist between Zero flux coil and upper straight line style Halbach array bottom surface between top air gap, and bottom linear Halbach array end face and there is bottom air gap.
Description
Technical field
This utility model relates to electromagnetic suspension field, hangs particularly to a kind of coil type permanent-magnet electric for magnetic-levitation train
Floating device.
Background technology
Magnetic-levitation train is a kind of vehicles being realized contactless motion by electromagnetic force, from Germany's work twenties in last century
Since Cheng Shi Ken Peier proposes magnetic-levitation train concept, this novel traffic mode becomes following friendship with its advantage such as high speed, safety
One of logical major way.Through the development of last 100 years, magnetic-levitation train gradually forms electromagnetic attraction suspension (EMS) and electrodynamic repulsion force
Suspension (EDS) two kinds is main.Wherein the electromagnetic attraction suction being to utilize electric magnet and magnetic material to produce that suspends is as suspending power,
Current this mode is most commonly seen and ripe.But suction is a kind of unstable power, therefore this magnetic mode of floating needs to rely on actively control
System could realize, and therefore system is complex, and reliability is relatively low.It is to utilize permanent magnet or superconductor to produce source that electrodynamic repulsion force suspends
Magnetic field, cuts this magnetic field, in the conductor induced current by motion conduct, this electric current and source magnetic field interaction, produces and repels
Power, thus reach the purpose suspended.This suspended pattern can realize self-stabilization and suspend, it is not necessary to control, therefore simple in construction, can
Strong by property.Particularly permanent-magnet electric suspends, because Qi Yuan magnetic field is produced by permanent magnet, loss of excitation equivalent risk is less, therefore it is more steady
Fixed reliable, this patent is exactly a kind of permanent-magnet electric levitation device.
Different according to permanent magnet array quantity, permanent-magnet electric suspends can be divided into again monolateral suspension and the big class of bilateral suspension two,
Common suspended pattern broadly falls into monolateral suspension, i.e. permanent magnet array and is positioned at conductor side, and this mode can only produce unilateral repulsion
Power, electromagnetic force increases with air gap and exponentially decays, and therefore its suspension stiffness is relatively low, it is impossible to effectively suppress train vibration.And it is bilateral
Suspending, permanent magnet array lays respectively at conductor both sides, and because having structural symmetry, its suspension stiffness is relatively big, suppresses train vibration
Effect is more preferable.But under normal circumstances, bilateral conductor in suspension can be by the active force of two permanent magnet arrays, and therefore its resistance is more
Greatly, the device of American scholar Richard et al. utility model demonstrates this point.The base that old Yin of Southwest Jiaotong University et al. proposes
Although the two-sided permanent magnet electrodynamics suspension mode in thin-slab structure can reduce electromagnetic resistance during low speed, but due to kelvin effect, no
It is applicable to High Speed Field.And thin-slab structure mechanical strength is relatively low, the gravity of train can not be born under normal circumstances, be therefore unfavorable for
Its through engineering approaches.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of coil type permanent-magnet electric for magnetic-levitation train and hangs
Floating device, to realize the self-stabilization suspension of train in the case of not having control system, and suspension stiffness is higher, resistance and energy consumption
Relatively low.
It is as follows that this utility model solves the technical scheme that its technical problem used:
A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train of the present utility model, including train body, rail
Road, and drive the linear electric motors of train body orbital motion, it is characterized in that: described track both sides are respectively installed with one group
Coil, often group coil is made up of along track bearing of trend spaced Zero flux coil some；On described train body laterally
Being spaced the two-sided permanent magnet array corresponding with coil, two-sided permanent magnet array includes the upper straight line style being positioned at more than Zero flux coil
Halbach array and the bottom linear Halbach array being positioned at below Zero flux coil, Zero flux coil and upper straight line style
Exist between Halbach array bottom surface and there is bottom air gap between top air gap, and bottom linear Halbach array end face.
The beneficial effects of the utility model are, suspend compared to electromagnetic attraction, and this device can realize the self-stabilization of train and hang
Floating, it is not necessary to control system, therefore simple in construction, reliability is higher；Owing to device uses two-sided permanent magnet array structure, compared to
Traditional single-side structural, this device suspension stiffness is bigger, can effectively suppress train vibration；Track uses loop construction, therefore electricity
Reluctance force is significantly lower than plank frame, can effectively reduce energy consumption, and loop construction kelvin effect is more weak, therefore high speed performance is more preferable,
Mechanical strength is the highest.
Accompanying drawing explanation
This specification includes following six width accompanying drawings:
Fig. 1 is the structural representation of a kind of coil type permanent-magnet electric levitation device for magnetic-levitation train of this utility model；
Fig. 2 be this utility model be the side view of a kind of coil type permanent-magnet electric levitation device for magnetic-levitation train, figure
Middle arrow is that a kind of feasible Halbach array magnetizes mode；
Fig. 3 is the enlarged drawing of A local in Fig. 1；
Fig. 4 be this utility model be a kind of Zero flux coil in the coil type permanent-magnet electric levitation device of magnetic-levitation train
Axonometric chart；
Fig. 5 be this utility model be a kind of Zero flux coil in the coil type permanent-magnet electric levitation device of magnetic-levitation train
Front projection figure, in figure, arrow is the wherein sense of current；
Fig. 6 be this utility model be a kind of given parameters bar in the coil type permanent-magnet electric levitation device of magnetic-levitation train
The calculated curve that electromagnetic force characteristic under part changes with air gap side-play amount.
Parts, position and numbering in figure: train body 10, linear electric motors 11, track 12, rigid connector 13, non-gold
Belong to support 14；Zero flux coil 20, top, top section 21, upper left-hand section 22, upper right section 23, lower bottom section 24, bottom is left
Side section 25, on the right side of bottom section 26, top and the bottom First Transition section 27, top and the bottom the second changeover portion 28；Upper straight line style Halbach battle array
Row 31, bottom linear Halbach array 32, top air gap 33, bottom air gap 34.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
See figures.1.and.2, a kind of coil type permanent-magnet electric levitation device for magnetic-levitation train of the present utility model, bag
Include train body 10, track 12, and the linear electric motors 11 that driving train body 10 moves along track 12.Described track 12 both sides
Respectively it is installed with one group of coil, often organizes coil by some along track 12 bearing of trend spaced Zero flux coil 20 structure
Become.The two-sided permanent magnet array that on described train body 10, lateral separation is corresponding with coil, two-sided permanent magnet array includes being positioned at zero
The upper straight line style Halbach array 31 of magnetic flux coil more than 20 and the lower straight line style being positioned at Zero flux coil less than 20
, between Zero flux coil 20 and upper straight line style Halbach array 31 bottom surface, there is top air gap 33 in Halbach array 32, with
Bottom air gap 34 is there is between bottom linear Halbach array 32 end face.
With reference to Fig. 1, upper straight line style Halbach array 31, bottom linear Halbach array 32 constitute two-sided permanent magnet battle array
Row, the air-gap field of generation meets: cancelling out each other in vertical magnetic field, horizontal direction magnetic field is overlapped mutually.When linear electric motors 11 draw
Train body 10 along track 12 move time, two-sided permanent magnet array and the coil generation relative motion being installed on track 12, now
Meeting induced current in coil, this electric current and permanent magnet magnetic field interactions, produce repulsive force, thus provide suspending power, it is achieved row
Car car body 10 and the contactless motion of track 12.
With reference to Fig. 2 and Fig. 3, Zero flux coil 20 is positioned at upper straight line style Halbach array 31, top air gap 33 and bottom
Between linear Halbach array 32, bottom air gap 34.With reference to Fig. 4 and Fig. 5, the front projection of described Zero flux coil 20 is 8
Font, including top, top section 21, upper left-hand section 22, upper right section 23, lower bottom section 24, lower left side section 25 and lower right
Top and the bottom First Transition section 27 between section 26 and upper right section 23, bottom on the right side of side section 26, and upper left-hand section 22, bottom
Top and the bottom second even changeover portion 28 between the section 25 of left side.
Fig. 1, Fig. 3 are the sectional drawing of a kind of feasible arrangement, and levitation device of the present utility model is positioned at bottom train
Both sides, Zero flux coil 20 is fixed on track 12 sidewall by non-metal frame 14, upper straight line style Halbach array
31, bottom linear Halbach array 32 is fixed on rigid connector 13, and rigid connector 13 is fixed on train car
Bottom body 10.When linear electric motors 11 work, upper straight line style Halbach array 31, lower straight line style Halbach battle array can be driven
Row 32 are synchronized with the movement.The magnetic field that upper straight line style Halbach array 31, bottom linear Halbach array 32 produce can be cut
Position Zero flux coil 20 between air gap 33, bottom air gap 34 to its upper, thus produce faradic current.By Zero flux coil 20
Characteristic understand, its sense of current as shown in Figure 4, due to the symmetry of coil, except coil middle and upper part top section 21 and lower bottom
Outside section 24, remaining each section exists symmetrical current, such as upper left-hand section 22, the size of current equidirectional phase of upper right section 23
Instead, the electromagnetic force that therefore these electric currents produce can be cancelled out each other, and the stress of final coil is top top section 21 and lower bottom section 24
Making a concerted effort of stress.Top, top section 21 is the most identical with lower bottom section 24 size of current direction again, and two groups of two-sided permanent magnet arrays are right at it
The horizontal direction magnetic field that should locate to produce is overlapped mutually and cancels out each other in vertical direction magnetic field, Ampere theorem understand top, top section 21
The suspending power produced with lower bottom section 24 electric current is overlapped mutually, and resistance is cancelled out each other, the suspending power F that coil is finally sufferedLWith
Resistance FDCan be expressed as:
FL=(Bx1+Bx2)I
FD=(By1-By2)I
In formula, Bx1And Bx2It is respectively the horizontal component in magnetic field, B at top top section 21 and lower bottom section 24y1And By2It is respectively
The vertical component in magnetic field at top top section 21 and lower bottom section 24, I is the size of current passed through in coil.Therefore have:
Being analyzed by above, the suspending power that this device produces is far longer than its resistance produced, and is therefore bearing phase
During with the train gravity of size, its resistance produced is lower, thus energy consumption is the lowest.Again according to Lenz's law, when at row
When under car External Force Acting, top air gap 33 reduces, bottom air gap 34 increases, repulsive force produced by device can hinder top air gap
33 reduce, and vice versa.Therefore this system is self-stabilization, it is not necessary to control system.
Upper straight line style Halbach array 31, bottom linear Halbach array 32 have the multiple mode that magnetizes, arrow in Fig. 2
Head show a kind of feasible mode.As a example by this mode that magnetizes, the electromagnetic force characteristic of the offer of this device is calculated.
When apparatus structure parameter is as shown in table 1, its result of calculation is as shown in Figure 6.It will be appreciated from fig. 6 that the maximum suspension that this device provides
The ratio of power and resistance can be more than 600, and along with upper and lower air gap difference increases, this numerical value has declined, but remains above 50, therefore its performance is remote
It is much better than existing two-sided permanent magnet electrodynamics suspension.And curve is odd function in Fig. 6, it was demonstrated that the two-way stable of this device.
Subordinate list 1 calculated examples parameter
In sum, a kind of coil type permanent-magnet electric levitation device for magnetic-levitation train of the present utility model can realize row
The self-stabilization of car suspends, it is not necessary to control system, therefore simple in construction, reliability is higher.Compared to traditional single-side structural, should
Device suspension stiffness is bigger, can effectively suppress train vibration.Track uses loop construction, and electromagnetic resistance is significantly lower than board-like knot
Structure, can effectively reduce energy consumption, and loop construction kelvin effect is more weak, therefore high speed performance is more preferable, and mechanical strength is the highest.
A kind of coil type permanent-magnet electric for magnetic-levitation train of the above this utility model that simply explains through diagrams suspends
Some principles of device, are not intended to be confined to by this utility model type in shown and described concrete structure and the scope of application,
Therefore every corresponding amendment being likely utilized and equivalent, belong to the apllied the scope of the claims of this utility model type.
Claims (3)
1. for a coil type permanent-magnet electric levitation device for magnetic-levitation train, including train body (10), track (12), and
The linear electric motors (11) driving train body (10) to move along track (12), is characterized in that: described track (12) both sides are each fixing
Being provided with one group of coil, often group coil is made up of along track (12) bearing of trend spaced Zero flux coil (20) some；
The two-sided permanent magnet array that the upper lateral separation of described train body (10) is corresponding with coil, two-sided permanent magnet array includes being positioned at zero magnetic
Lead to upper straight line style Halbach array (31) of more than coil (20) and be positioned at Zero flux coil (20) lower straight line style below
, between Zero flux coil (20) and upper straight line style Halbach array (31) bottom surface, there is top air gap in Halbach array (32)
, and between bottom linear Halbach array (32) end face, there is bottom air gap (34) (33).
A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train, is characterized in that: described
The front projection of Zero flux coil (20) is 8-shaped, including top section, top (21), upper left-hand section (22), upper right section
(23), on the right side of lower bottom section (24), lower left side section (25) and bottom on the right side of section (26), and upper left-hand section (22), bottom
The top and the bottom second between top and the bottom First Transition section (27) and upper right section (23), lower left side section (25) between section (26)
Even changeover portion (28).
A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train, is characterized in that: described
Zero flux coil (20) is fixed on track (12) sidewall by non-metal frame (14), described upper straight line style
Halbach array (31), bottom linear Halbach array (32) are fixed on rigid connector (13), rigid connector
(13) train body (10) bottom it is fixed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620752575.3U CN205800824U (en) | 2016-07-18 | 2016-07-18 | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620752575.3U CN205800824U (en) | 2016-07-18 | 2016-07-18 | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train |
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| Publication Number | Publication Date |
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| CN205800824U true CN205800824U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620752575.3U Withdrawn - After Issue CN205800824U (en) | 2016-07-18 | 2016-07-18 | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143205A (en) * | 2016-07-18 | 2016-11-23 | 中铁二院工程集团有限责任公司 | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train |
| CN109131369A (en) * | 2018-07-02 | 2019-01-04 | 西南交通大学 | A kind of suspension type high-temperature superconductor magnetic suspension traffic system |
| CN111231691A (en) * | 2020-01-13 | 2020-06-05 | 西南交通大学 | Self-guide linear propulsion structure for electric repulsion type magnetic levitation track system and levitation force disturbance control method thereof |
| CN112644555A (en) * | 2019-10-10 | 2021-04-13 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Circular ring type HALBACH magnetic braking device and high-speed train |
| CN113500921A (en) * | 2021-08-05 | 2021-10-15 | 中车株洲电力机车有限公司 | Magnetic-levitation train and levitation control system and levitation point vibration suppression method thereof |
| CN113997796A (en) * | 2021-11-30 | 2022-02-01 | 中车长春轨道客车股份有限公司 | Train control method and related device |
-
2016
- 2016-07-18 CN CN201620752575.3U patent/CN205800824U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143205A (en) * | 2016-07-18 | 2016-11-23 | 中铁二院工程集团有限责任公司 | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train |
| CN106143205B (en) * | 2016-07-18 | 2018-06-12 | 中铁二院工程集团有限责任公司 | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train |
| CN109131369A (en) * | 2018-07-02 | 2019-01-04 | 西南交通大学 | A kind of suspension type high-temperature superconductor magnetic suspension traffic system |
| CN109131369B (en) * | 2018-07-02 | 2023-08-29 | 西南交通大学 | Suspension type high-temperature superconductive magnetic levitation traffic system |
| CN112644555A (en) * | 2019-10-10 | 2021-04-13 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Circular ring type HALBACH magnetic braking device and high-speed train |
| CN112644555B (en) * | 2019-10-10 | 2022-04-12 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Circular ring type HALBACH magnetic braking device and high-speed train |
| CN111231691A (en) * | 2020-01-13 | 2020-06-05 | 西南交通大学 | Self-guide linear propulsion structure for electric repulsion type magnetic levitation track system and levitation force disturbance control method thereof |
| CN113500921A (en) * | 2021-08-05 | 2021-10-15 | 中车株洲电力机车有限公司 | Magnetic-levitation train and levitation control system and levitation point vibration suppression method thereof |
| CN113997796A (en) * | 2021-11-30 | 2022-02-01 | 中车长春轨道客车股份有限公司 | Train control method and related device |
| CN113997796B (en) * | 2021-11-30 | 2023-08-18 | 中车长春轨道客车股份有限公司 | Train control method and related device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20180612 |
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| AV01 | Patent right actively abandoned |