KR101685620B1 - Magnetic levitation system having gap minute control electromagnet - Google Patents
Magnetic levitation system having gap minute control electromagnet Download PDFInfo
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- KR101685620B1 KR101685620B1 KR1020130153897A KR20130153897A KR101685620B1 KR 101685620 B1 KR101685620 B1 KR 101685620B1 KR 1020130153897 A KR1020130153897 A KR 1020130153897A KR 20130153897 A KR20130153897 A KR 20130153897A KR 101685620 B1 KR101685620 B1 KR 101685620B1
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- Prior art keywords
- electromagnet
- floating
- fine adjustment
- orbit
- gap fine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/10—Railway vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
Abstract
According to one aspect of the present invention, there is provided a magnetic levitation system comprising: a bogie moving by levitation; a support frame fixed to the ground; a levitation electromagnet fixed to the support frame and attracting the bogie by lifting the bogie; And an air gap fine adjustment electromagnet disposed adjacent to the electromagnet to control the levitation force.
Description
FIELD OF THE INVENTION The present invention relates to a magnetic levitation system, and more particularly to a magnetic levitation system having an air-fine-tuning electromagnet.
Magnetic levitation propulsion refers to the propulsion of levitated at a constant height from the orbit using electric magnetic force. Magnetic levitation systems include bogies that float and propel in non-contact on orbits and orbits.
The magnetic levitation system applies the attractive force or the repulsive force by the electromagnet between the bogie and the orbit to propel the bogie away from the orbit. As described above, the magnetic levitation system is driven in a non-contact state with the orbit, so that it is possible to carry out the high speed propulsion with less noise and vibration.
In the magnetic levitation method, there are a suction type using the attractive force of the magnet and a repulsive type using the repulsive force of the magnet. In addition, there are a superconducting system and a superconducting system in accordance with the principle of electromagnetism in the method of levitation of the magnetic levitation. The superconducting method is applied to high speed train because it has no electric resistance and strong magnetic force, and the phase transfer method is applied to the medium speed long distance train.
In a magnetic levitation system, the levitation force is determined by the amount of current flowing through the levitation electromagnet. However, if the amount of electric current flowing in the floating electromagnet having a relatively large magnetic force is changed, the variation of the levitation force becomes large, and the interval between the bogie and the orbit becomes large. Accordingly, there is a problem that it is difficult to finely control the interval between the bogie and the orbit.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a magnetic levitation system capable of finely adjusting an interval between a bogie and a track.
According to one aspect of the present invention, there is provided a magnetic levitation system comprising: a bogie moving by levitation; a support frame fixed to the ground; a levitation electromagnet fixed to the support frame and attracting the bogie by lifting the bogie; And an air gap fine adjustment electromagnet disposed adjacent to the electromagnet to control the levitation force.
Here, the gap fine adjustment electromagnet may be fixed to the floating electromagnet via a supporting member. Further, the floating electromagnet may have a groove, the gap fine adjustment electromagnet may be inserted in the groove, the gap fine adjustment electromagnet may have a groove, and the floating electromagnet may be inserted in the groove.
The gap fine adjustment electromagnet may have a smaller magnetic force than the floating electromagnet, and the magnetic force of the floating electromagnet may be 10 to 100 times the magnetic force of the gap fine adjustment electromagnet.
Wherein the gap fine adjustment electromagnet is connected to an auxiliary current control unit for controlling an amount of current applied to the gap fine adjustment electromagnet, and a floating current control unit for controlling an amount of current applied to the floating electromagnet is connected to the floating electromagnet It can be.
The bogie may be provided with a first ferromagnetic plate having a protrusion facing the floating electromagnet and a second ferromagnetic plate having a protrusion facing the gap fine adjustment electromagnet. The first ferromagnetic plate may have a groove and the second ferromagnetic plate may be inserted into the groove.
Wherein a plurality of first protrusions facing the floating electromagnet and a second protrusion facing the gap fine adjustment electromagnet are formed on the ferromagnetic plate, May be disposed between the first projections.
According to another aspect of the present invention, there is provided a magnetic levitation system comprising a bogie moving by magnetic force, a trajectory formed in one direction and fixed relative to the ground, a levitation electromagnet fixedly installed on the bogie, And an air gap fine adjustment electromagnet disposed adjacent to the floating electromagnet to control a force pulling the orbit.
The gap fine adjustment electromagnet may be fixed to the floating electromagnet via a supporting member. Further, the floating electromagnet may have a groove, the gap fine adjustment electromagnet may be inserted in the groove, the gap fine adjustment electromagnet may have a groove, and the floating electromagnet may be inserted in the groove.
The track may be provided with a first ferromagnetic plate having a protrusion facing the floating electromagnet and a second ferromagnetic plate having a protrusion facing the gap fine adjustment electromagnet. The first ferromagnetic plate may have a groove and the second ferromagnetic plate may be inserted into the groove.
Wherein a plurality of first protrusions facing the floating electromagnet and a second protrusion facing the gap fine adjustment electromagnet are formed on the ferromagnetic plate, May be disposed between the first projections.
According to the embodiment of the present invention, since the gap fine adjustment electromagnet is provided, the air gap between the bogie and the track can be controlled more easily by finely controlling the levitation force.
1 is a longitudinal sectional view of a magnetic levitation system according to a first embodiment of the present invention, which is cut in a width direction.
2 is a longitudinal sectional view showing a floating electromagnet and a ferromagnetic plate according to a first embodiment of the present invention.
3 is a perspective view showing a floating electromagnet and a ferromagnetic plate according to a first embodiment of the present invention.
4 is a longitudinal sectional view showing a floating electromagnet and a ferromagnetic plate according to a second embodiment of the present invention.
5 is a longitudinal sectional view showing a floating electromagnet and a ferromagnetic plate according to a third embodiment of the present invention.
FIG. 6 is a longitudinal sectional view of the magnetic levitation system according to the fourth embodiment of the present invention, taken in the width direction. FIG.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.
1 is a longitudinal sectional view of a magnetic levitation system according to a first embodiment of the present invention, which is cut in a width direction.
1, the
The
A
The
The
A
As shown in FIGS. 3 and 4, the floating
The air gap
The gap
The first
Thus, the floating
When the current flowing through the floating
4 is a longitudinal sectional view showing a floating electromagnet and a ferromagnetic plate according to a second embodiment of the present invention.
4, the magnetic levitation system according to the present embodiment is similar to the magnetic levitation system according to the first embodiment except for the structure of the levitation electromagnet and the gap fine adjustment electromagnet, A duplicate description of the above will be omitted.
The floating
The air gap
The gap
The
The
5 is a longitudinal sectional view showing a floating electromagnet and a ferromagnetic plate according to a third embodiment of the present invention.
5, the magnetic levitation system according to the present embodiment is similar to the levitation system according to the first embodiment except for the structure of the levitation electromagnet and the gap fine adjustment electromagnet, A duplicate description of the above will be omitted.
The floating
The air gap
The gap
The air gap
The
FIG. 6 is a longitudinal sectional view of the magnetic levitation system according to the fourth embodiment of the present invention, taken in the width direction. FIG.
Referring to FIG. 6, the
The
The upper surface of the
The
Two propelling
The guiding
A floating electromagnet (441) and a gap fine adjustment electromagnet (442) are fixedly mounted on the seating projection (425). A floating
The floating
The first
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.
110, 410:
112:
112b, 112c:
122, 462: second
124, 424: permanent magnet
131, 132, 134, 431, 432, 434:
141, 210, 310, 441: floating electromagnet
142, 230, 320, 442: air gap fine adjustment electromagnet
151, 451:
143, 240, 340: support member 160: base
161, 261, 361: Flying
250, 350: ferromagnetic plate 412:
413: girder 421: top plate
423: side plate 425:
Claims (17)
A successively formed orbit;
A bogie floating on the orbit by magnetic force;
A support frame fixed relative to the ground;
A floating electromagnet fixed to the supporting frame and pulling the floating body to float;
A propulsion electromagnet fixed to the track and generating a propulsive force by applying a magnetic force to the truck; And
And an air gap fine adjustment electromagnet disposed adjacent to the floating electromagnet to control the levitation force,
The gap fine adjustment electromagnet
And the magnetic levitation system is fixed to the floating electromagnet via a supporting member.
An auxiliary current control unit for controlling the amount of current applied to the gap fine adjustment electromagnet is connected to the gap fine adjustment electromagnet,
Wherein the floating electromagnet is connected to a floating current control unit for controlling the amount of current applied to the floating electromagnet.
Wherein the floating electromagnet has a groove, and the gap fine adjustment electromagnet is inserted in the groove.
Wherein the gap fine adjustment electromagnet has a groove and the floating electromagnet is inserted in the groove.
Wherein the gap fine tuning electromagnet has a smaller magnetic force than the floating electromagnet.
Wherein the magnetic force of the floating electromagnet is 10 to 100 times the magnetic force of the gap fine adjustment electromagnet.
Wherein the bogie is provided with a first ferromagnetic plate having a protrusion facing the floating electromagnet and a second ferromagnetic plate having a protrusion facing the gap fine adjustment electromagnet.
Wherein a groove is formed in the first ferromagnetic plate and the second ferromagnetic plate is inserted in the groove.
A successively formed orbit;
A bogie floating on the orbit by magnetic force;
A support frame fixed relative to the ground;
A floating electromagnet fixed to the supporting frame and pulling the floating body to float;
A propulsion electromagnet fixed to the track and generating a propulsive force by applying a magnetic force to the truck; And
And an air gap fine adjustment electromagnet disposed adjacent to the floating electromagnet to control the levitation force,
A ferromagnetic plate facing the floating electromagnet is disposed on the bogie,
Wherein the ferromagnetic plate is provided with a plurality of first protrusions facing the floating electromagnet and a second protrusion facing the gap fine adjustment electromagnet, and the second protrusions are disposed between the first protrusions.
A successively formed orbit;
A bogie floating on the orbit by magnetic force;
A levitation electromagnet fixedly installed on the bogie and causing the orbit to be attracted and floated;
A propulsion electromagnet fixed to the bogie and generating a propulsive force by applying a magnetic force to the orbit; And
And an air gap fine tuning electromagnet disposed adjacent to the floating electromagnet to control a force pulling the orbit,
Wherein the gap fine adjustment electromagnet is fixed to the floating electromagnet via a supporting member.
An auxiliary current control unit for controlling the amount of current applied to the gap fine adjustment electromagnet is connected to the gap fine adjustment electromagnet,
Wherein the floating electromagnet is connected to a floating current control unit for controlling the amount of current applied to the floating electromagnet.
Wherein the floating electromagnet has a groove, and the gap fine adjustment electromagnet is inserted in the groove.
Wherein the gap fine adjustment electromagnet has a groove and the floating electromagnet is inserted in the groove.
And a second ferromagnetic plate having a first ferromagnetic plate having a protrusion facing the floating electromagnet and a protrusion facing the gap fine adjustment electromagnet are formed on the track.
Wherein a groove is formed in the first ferromagnetic plate and the second ferromagnetic plate is inserted in the groove.
A successively formed orbit;
A bogie floating on the orbit by magnetic force;
A levitation electromagnet fixedly installed on the bogie and causing the orbit to be attracted and floated;
A propulsion electromagnet fixed to the bogie and generating a propulsive force by applying a magnetic force to the orbit; And
And an air gap fine tuning electromagnet disposed adjacent to the floating electromagnet to control a force pulling the orbit,
A ferromagnetic plate facing the floating electromagnet is disposed on the track,
Wherein the ferromagnetic plate is provided with a plurality of first protrusions facing the floating electromagnet and a second protrusion facing the gap fine adjustment electromagnet, and the second protrusions are disposed between the first protrusions.
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RU2611858C1 (en) * | 2015-09-24 | 2017-03-01 | Акционерное Общество "Нииэфа Им. Д.В. Ефремова" | Adjustable magnetic suspension of vehicles with lifting force correction |
CN107306098B (en) * | 2016-04-18 | 2019-10-22 | 复旦大学 | Magnetic suspension guiding device and its control system and control method |
CN107306099B (en) * | 2016-04-18 | 2019-04-09 | 复旦大学 | Magnetic suspension guiding device and its control method |
CN109017435A (en) * | 2018-06-26 | 2018-12-18 | 西南交通大学 | A kind of distributed electrical driving magnetic-suspension automobile |
CN114132185A (en) * | 2021-11-25 | 2022-03-04 | 江西理工大学 | System and method for improving stability of rare earth permanent magnet suspension track |
Citations (2)
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JP2003338415A (en) | 2002-05-20 | 2003-11-28 | Japan Science & Technology Corp | Method for ac magnetic levitation using permanent magnet in combination |
JP2013185691A (en) * | 2012-03-09 | 2013-09-19 | Toshiba Corp | Magnetic floating device |
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JPH1095533A (en) * | 1996-09-25 | 1998-04-14 | Toshiba Mechatronics Kk | Magnetic levitation type carrying equipment |
KR20080086612A (en) * | 2007-03-23 | 2008-09-26 | (주)한우리 | Fault-tolerant levitation control system for emsmaglev vehicle |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003338415A (en) | 2002-05-20 | 2003-11-28 | Japan Science & Technology Corp | Method for ac magnetic levitation using permanent magnet in combination |
JP2013185691A (en) * | 2012-03-09 | 2013-09-19 | Toshiba Corp | Magnetic floating device |
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