CN107894578A - A kind of method for being used to test magnetic suspension system suspendability at various speeds - Google Patents
A kind of method for being used to test magnetic suspension system suspendability at various speeds Download PDFInfo
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- CN107894578A CN107894578A CN201711077091.9A CN201711077091A CN107894578A CN 107894578 A CN107894578 A CN 107894578A CN 201711077091 A CN201711077091 A CN 201711077091A CN 107894578 A CN107894578 A CN 107894578A
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- magnet coil
- magnetic suspension
- suspendability
- controller
- various speeds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1261—Measuring magnetic properties of articles or specimens of solids or fluids using levitation techniques
Abstract
The invention discloses a kind of method for being used to test magnetic suspension system suspendability at various speeds.This method comprises the following steps：(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is arranged at some first magnet coils of ferromagnetism bulk both sides, and the second separate magnet coil is provided with the first magnet coil；(2) make car body keep suspending fixedly, reset the ON time between adjacent second magnet coil, make K1~KNIt is sequentially communicated；(3) formula is passed through：V=2fL can draw the speed of service of simulation magnetic suspension train；Wherein, f is the inverse of ON time；(4) after ON time is set, then controlled by controller and be passed through K1~KNElectricity, magnetic field size caused by regulation, to determine the suspendability of magnetic suspension train at various speeds.The inventive method can detect that suspendability of the train under the different speeds of service.
Description
Technical field
The invention belongs to magnetic levitation technology field, and in particular to one kind is hanged at various speeds for testing magnetic suspension system
The method of buoyancy energy.
Background technology
When being measured to the magnetic suspension system speed of service, traditional method usually builds a permanent magnetism rail first
Road, then car body is advanced or is retreated along tracks of permanent magnetism under external force driving again, led with testing vehicle body superconduction block material with permanent magnetism
Electromagnetic coupled relationship change situation between rail, and the car body speed of service, but, due to tracks of permanent magnetism after a long time use
The situation of Magnetic field inhomogeneity occurs, and builds the with high costs of tracks of permanent magnetism.
The content of the invention
For above-mentioned deficiency of the prior art, the present invention provides a kind of for testing magnetic suspension system at various speeds
The method of suspendability, the Magnetic field inhomogeneity that effectively can solve to occur in traditional assay method, can not Accurate Determining car body with leading
Between rail the problem of coupling performance.
A kind of method for being used to test magnetic suspension system suspendability at various speeds, comprises the following steps：
(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is relatively arranged on ferromagnetism bulk two with S poles
Some first magnet coils of side, and the second separate magnet coil, the second electromagnetism are provided with the first magnet coil
Coil is with K1~KNRepresent, and spacing is L between the second adjacent magnet coil；First magnet coil and the second magnet coil
It is connected with extraneous power supply, and is independently connected with controller, by each first magnet coil of controller independent control and
The break-make of two magnet coils and power supply；
(2) when testing, by controller, make the first relative magnet coil of ferromagnetism bulk both sides while connect, make magnetic
Suspension car body remains stationary as, and then resets the ON time between adjacent second magnet coil, makes K1~KNIt is sequentially communicated；
(3) formula is passed through：V=2fL can draw the dry run speed of magnetic suspension train in a stationary situation；Its
In, f is the inverse of ON time；
(4) K is being set1~KNBetween ON time after, then by controller control be passed through K1~KNElectricity, adjust
Save K1~KNCaused magnetic field size, then be arranged at by some on maglev vehicle, and the sensor being connected with controller, survey
Determine the suspendability of magnetic suspension train at various speeds.
Further, the sense of current in step (1) on the left of ferromagnetism bulk in the first magnet coil be from paper to paper
Outside, the sense of current in the magnet coil of right side first is by paper extroversion paper.
Further, the sense of current in step (1) on the left of ferromagnetism bulk in the second magnet coil be from paper to paper
Outside, the sense of current in the magnet coil of right side second is by paper extroversion paper.
Further, the ON time in step (2) between adjacent second magnet coil is identical, for the constant more than 0
Further, controller is singlechip controller or PLC in step (2).
Further, K in step (4)1~KNThe electricity that is passed through is identical, is sequentially reduced or increases successively.
Further, sensor includes range sensor and displacement transducer in step (4).
Beneficial effects of the present invention are：
1st, change of the inventive method by using electromagnet in time is relative in space to simulate maglev vehicle
The speed answered, it is not necessary to huge fund is put into build the tracks of permanent magnetism of test, for example, the magnetic suspension that detection speed per hour is 600km/h
, it is necessary to build more than 20km tracks of permanent magnetism to be measured during train, and the inventive method is keeping the motionless situation of car body
Under, it need to only shorten the ON time between adjacent second magnet coil, you can realize, greatly reduce testing cost.
2nd, due to using magnet coil, be not in the problem of Magnetic field inhomogeneity occur after long-time use, ensure
The Stability and veracity of velocity measuring.
3rd, by changing the dry run speed of train, and K1~KNIn be passed through the size of electricity, can obtain train not
With under operating rate and different magnetic field environment, the coupled relation between train body and track, that is, pass through the suspendability of train
Embodied.
Embodiment
The embodiment of the present invention is described below, in order to which those skilled in the art understand this hair
It is bright, it should be apparent that the invention is not restricted to the scope of embodiment, for those skilled in the art,
As long as various change in the spirit and scope of the present invention that appended claim limits and determines, these changes are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the row of protection.
Embodiment 1
A kind of method for being used to test magnetic suspension system suspendability at various speeds, comprises the following steps：
(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is relatively arranged on ferromagnetism bulk two with S poles
Some first magnet coils of side, and the second separate magnet coil, the second electromagnetism are provided with the first magnet coil
Coil is with K1~KNRepresent, and spacing is that L is 0.4m between the second adjacent magnet coil；First magnet coil and the second electricity
Magnetic coil is connected with extraneous power supply, and is independently connected with controller, by each first electromagnetic wire of controller independent control
Circle and the break-make of the second magnet coil and power supply；It is preferred that controller is PLC；
(2) when testing, under controller regulation and control, the first relative magnet coil of ferromagnetism bulk both sides connects simultaneously, makes
Maglev vehicle remains stationary as, and then sets the ON time between adjacent second magnet coil on the controller again as 0.01s,
Make K1~KNIt is sequentially communicated；Now f=100Hz；
(3) formula is passed through：V=2fL can draw the dry run speed of magnetic suspension train in a stationary situation：V=2
× 100 × 0.4=80m/s=288km/h；
Now, velocity variations of the magnetic suspension train in space, it is converted into ON time between adjacent second magnet coil
Change, with reach simulation dynamic train running speed purpose；
(4) K is being set1~KNBetween ON time after, then by controller control be passed through K1~KNElectricity successively
Increase, adjust K1~KNCaused magnetic field size, then range sensor and displacement transducer by being connected with controller, survey
Cover half intends the hoverheight and suspension stability between magnetic suspension train and guide rail.
Hoverheight and suspension stability between the magnetic suspension train and guide rail that now determine, that is, simulation car body
When being run using speed per hour as 288km/h, hoverheight and suspension stability between magnetic suspension train and guide rail, i.e. magnetic suspension train
Suspendability.
Embodiment 2
A kind of method for being used to test magnetic suspension system suspendability at various speeds, comprises the following steps：
(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is relatively arranged on ferromagnetism bulk two with S poles
Some first magnet coils of side, and the second separate magnet coil, the second electromagnetism are provided with the first magnet coil
Coil is with K1~KNRepresent, and spacing is that L is 0.5m between the second adjacent magnet coil；First magnet coil and the second electricity
Magnetic coil is connected with extraneous power supply, and is independently connected with controller, by each first electromagnetic wire of controller independent control
Circle and the break-make of the second magnet coil and power supply；It is preferred that controller is PLC；
(2) when testing, under controller regulation and control, the first relative magnet coil of ferromagnetism bulk both sides connects simultaneously, makes
Maglev vehicle remains stationary as, and then sets the ON time between adjacent second magnet coil on the controller again as 0.02s,
Make K1~KNIt is sequentially communicated；Now f=50Hz；
(3) formula is passed through：V=2fL can draw the dry run speed of magnetic suspension train in a stationary situation：V=2
× 50 × 0.5=50m/s=180km/h；
Now, velocity variations of the magnetic suspension train in space, it is converted into ON time between adjacent second magnet coil
Change, with reach simulation dynamic train running speed purpose；
(4) K is being set1~KNBetween ON time after, then by controller control be passed through K1~KNElectricity keep
It is constant, control K1~KNCaused magnetic field size is constant, then range sensor and displacement sensing by being connected with controller
Device, hoverheight and suspension stability between measure simulation magnetic suspension train and guide rail.
Hoverheight and suspension stability between the magnetic suspension train and guide rail that now determine, that is, simulation car body
When being run using speed per hour as 180km/h, hoverheight and suspension stability between magnetic suspension train and guide rail, i.e. magnetic suspension train
Suspendability.
Embodiment 3
A kind of method for being used to test magnetic suspension system suspendability at various speeds, comprises the following steps：
(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is relatively arranged on ferromagnetism bulk two with S poles
Some first magnet coils of side, and the second separate magnet coil, the second electromagnetism are provided with the first magnet coil
Coil is with K1~KNRepresent, and spacing is that L is 0.3m between the second adjacent magnet coil；First magnet coil and the second electricity
Magnetic coil is connected with extraneous power supply, and is independently connected with controller, by each first electromagnetic wire of controller independent control
Circle and the break-make of the second magnet coil and power supply；It is preferred that controller is PLC；
(2) when testing, under controller regulation and control, the first relative magnet coil of ferromagnetism bulk both sides connects simultaneously, makes
Maglev vehicle remains stationary as, and then sets the ON time between adjacent second magnet coil on the controller again as 0.01s,
Make K1~KNIt is sequentially communicated；Now f=100Hz；
(3) formula is passed through：V=2fL can draw the dry run speed of magnetic suspension train in a stationary situation：V=2
× 100 × 0.3=60m/s=216km/h；
Now, velocity variations of the magnetic suspension train in space, it is converted into ON time between adjacent second magnet coil
Change, with reach simulation dynamic train running speed purpose；
(4) K is being set1~KNBetween ON time after, then by controller control be passed through K1~KNElectricity successively
Reduce, adjust K1~KNCaused magnetic field size, then range sensor and displacement transducer by being connected with controller, survey
Cover half intends the hoverheight and suspension stability between magnetic suspension train and guide rail.
Hoverheight and suspension stability between the magnetic suspension train and guide rail that now determine, that is, simulation car body
When being run using speed per hour as 216km/h, hoverheight and suspension stability between magnetic suspension train and guide rail, i.e. magnetic suspension train
Suspendability.
Embodiment 4
A kind of method for being used to test magnetic suspension system suspendability at various speeds, comprises the following steps：
(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is relatively arranged on ferromagnetism bulk two with S poles
Some first magnet coils of side, and the second separate magnet coil, the second electromagnetism are provided with the first magnet coil
Coil is with K1~KNRepresent, and spacing is that L is 1m between the second adjacent magnet coil；First magnet coil and the second electromagnetism
Coil is connected with extraneous power supply, and is independently connected with controller, by each first magnet coil of controller independent control
With the break-make of the second magnet coil and power supply；It is preferred that controller is PLC；
(2) when testing, under controller regulation and control, the first relative magnet coil of ferromagnetism bulk both sides connects simultaneously, makes
Maglev vehicle remains stationary as, then set on the controller again ON time between adjacent second magnet coil as
0.005s, make K1~KNIt is sequentially communicated；Now f=200Hz；
(3) formula is passed through：V=2fL can draw the dry run speed of magnetic suspension train in a stationary situation：V=2
× 200 × 1=400m/s=1440km/h；
Now, velocity variations of the magnetic suspension train in space, it is converted into ON time between adjacent second magnet coil
Change, with reach simulation dynamic train running speed purpose；
(4) K is being set1~KNBetween ON time after, then by controller control be passed through K1~KNElectricity successively
Increase, adjust K1~KNCaused magnetic field size, then range sensor and displacement transducer by being connected with controller, survey
Cover half intends the hoverheight and suspension stability between magnetic suspension train and guide rail.
Hoverheight and suspension stability between the magnetic suspension train and guide rail that now determine, that is, simulation car body
When being run using speed per hour as 1440km/h, hoverheight and suspension stability between magnetic suspension train and guide rail, i.e. magnetic suspension row
The suspendability of car.
Claims (7)
- A kind of 1. method for being used to test magnetic suspension system suspendability at various speeds, it is characterised in that including following step Suddenly：(1) electromagnetic path is established, electromagnetic path includes ferromagnetism bulk, and is relatively arranged on ferromagnetism bulk both sides with S poles Some first magnet coils, and the second separate magnet coil, the second magnet coil are provided with the first magnet coil With K1~KNRepresent, and spacing is L between the second adjacent magnet coil；First magnet coil and the second magnet coil with Extraneous power supply connection, and be independently connected with controller, by each first magnet coil of controller independent control and the second electricity The break-make of magnetic coil and power supply；(2) when testing, by controller, make the first relative magnet coil of ferromagnetism bulk both sides while connect, make magnetic suspension Car body remains stationary as, and then resets the ON time between adjacent second magnet coil, makes K1~KNIt is sequentially communicated；(3) formula is passed through：V=2fL can draw the dry run speed of magnetic suspension train in a stationary situation；Wherein, f is The inverse of ON time；(4) K is being set1~KNBetween ON time after, then by controller control be passed through K1~KNElectricity, adjust K1~ KNCaused magnetic field size, then be arranged at by some on maglev vehicle, and the sensor being connected with controller, determine magnetcisuspension The suspendability of floating train at various speeds.
- 2. the method according to claim 1 for being used to test magnetic suspension system suspendability at various speeds, its feature Be, the sense of current on the left of ferromagnetism bulk described in step (1) in the first magnet coil be from paper to outside paper, right side the The sense of current in one magnet coil is by paper extroversion paper.
- 3. the method according to claim 1 for being used to test magnetic suspension system suspendability at various speeds, its feature Be, the sense of current on the left of ferromagnetism bulk described in step (1) in the second magnet coil be from paper to outside paper, right side the The sense of current in two magnet coils is by paper extroversion paper.
- 4. the method according to claim 1 for being used to test magnetic suspension system suspendability at various speeds, its feature It is, the ON time described in step (2) between adjacent second magnet coil is identical, for the constant more than 0.
- 5. the method according to claim 1 for being used to test magnetic suspension system suspendability at various speeds, its feature It is, controller described in step (2) is singlechip controller or PLC.
- 6. the method according to claim 1 for being used to test magnetic suspension system suspendability at various speeds, its feature It is, K described in step (4)1~KNThe electricity that is passed through is identical, is sequentially reduced or increases successively.
- 7. the method according to claim 1 for being used to test magnetic suspension system suspendability at various speeds, its feature It is, sensor described in step (4) includes range sensor and displacement transducer.
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| CN201711077091.9A CN107894578B (en) | 2017-11-06 | 2017-11-06 | A method of for testing magnetic suspension system suspendability at various speeds |
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| CN201711077091.9A CN107894578B (en) | 2017-11-06 | 2017-11-06 | A method of for testing magnetic suspension system suspendability at various speeds |
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| CN107894578B CN107894578B (en) | 2019-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239497A (en) * | 2018-10-25 | 2019-01-18 | 西南交通大学 | A kind of electrodynamics suspension static experiment analogy method and its implement structure |
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| JP2007271447A (en) * | 2006-03-31 | 2007-10-18 | Railway Technical Res Inst | Railway vehicle brake performance testing machine and railway vehicle brake performance testing method |
| CN101348083A (en) * | 2008-09-11 | 2009-01-21 | 中国人民解放军国防科学技术大学 | Maglev system suspension control method |
| CN103522913A (en) * | 2013-10-17 | 2014-01-22 | 中国人民解放军国防科学技术大学 | Suspension control method and device used for EMS type low-speed suspension train |
| CN104477048A (en) * | 2014-11-28 | 2015-04-01 | 中国人民解放军国防科学技术大学 | Suspension control method of electromagnetic constant conduct low-speed magnetic-levitation train |
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2017
- 2017-11-06 CN CN201711077091.9A patent/CN107894578B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271447A (en) * | 2006-03-31 | 2007-10-18 | Railway Technical Res Inst | Railway vehicle brake performance testing machine and railway vehicle brake performance testing method |
| CN101348083A (en) * | 2008-09-11 | 2009-01-21 | 中国人民解放军国防科学技术大学 | Maglev system suspension control method |
| CN103522913A (en) * | 2013-10-17 | 2014-01-22 | 中国人民解放军国防科学技术大学 | Suspension control method and device used for EMS type low-speed suspension train |
| CN104477048A (en) * | 2014-11-28 | 2015-04-01 | 中国人民解放军国防科学技术大学 | Suspension control method of electromagnetic constant conduct low-speed magnetic-levitation train |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239497A (en) * | 2018-10-25 | 2019-01-18 | 西南交通大学 | A kind of electrodynamics suspension static experiment analogy method and its implement structure |
| CN109239497B (en) * | 2018-10-25 | 2020-09-08 | 西南交通大学 | Electric suspension static experiment simulation method and implementation structure thereof |
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