CN107493002A - One kind easily opens up mutually primary high-temperature superconductor field excitation linear motor - Google Patents
One kind easily opens up mutually primary high-temperature superconductor field excitation linear motor Download PDFInfo
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- CN107493002A CN107493002A CN201710699965.8A CN201710699965A CN107493002A CN 107493002 A CN107493002 A CN 107493002A CN 201710699965 A CN201710699965 A CN 201710699965A CN 107493002 A CN107493002 A CN 107493002A
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- temperature superconductor
- salient pole
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
Abstract
Mutually primary high-temperature superconductor field excitation linear motor is easily opened up the invention discloses a kind of, the motor is provided with air gap using short primary mover, long secondary stator structure between primary and secondary；The short primary mover is made up of some facies units along the arrangement of direction of motion equi-spaced apart, and each facies unit includes plate primary iron core and in its surface protrusion and primary salient pole towards primary side, high-temperature superconductor Exciting Windings for Transverse Differential Protection, primary iron core and primary the salient pole primary teeth that each two end surfaces protrude towards primary side, the primary armature winding being nested on primary teeth that are wound on primary salient pole between two parties；The long secondary stator includes plate secondary iron core, some equidistantly protrudes from secondary iron core surface and towards the secondary salient pole of primary side.The present invention uses high-temperature superconductor excitation, can realize that high-intensity magnetic field design improves pushing force density, be adapted to high-power applications occasion；Short primary mover uses facies unit modularized design, it is easy to accomplish multiphase is expanded, and fault freedom is good.
Description
Technical field
The present invention relates to a kind of motor for track traffic, more particularly to it is a kind of by Exciting Windings for Transverse Differential Protection and armature winding
It is placed in primary side and mutually primary high-temperature superconductor field excitation linear motor is easily opened up using high-temperature superconductor excitation.
Background technology
Important component of the motor as running part in track traffic, according to the difference of application places, select suitable electricity
Machine type has very important effect to the performance and efficiency that improve whole transmission system.Traditional linear motion is to utilize rotation
Convert rotational motion is linear motion by devices such as ball, ball-screw or pulleys by motor, and this method has problems：
System bulk is big, and cost is high, maintenance difficult, and efficiency is low.And it is applied to track traffic instead of electric rotating machine using linear electric motors, can
To overcome above-mentioned most of defect, the lifting to whole transmission system performance has significant effect.
At present, the excitation mode of linear electric motors mainly has two kinds of electrical excitation and permanent magnet excitation.Applied to the straight of track traffic
Power at least hundred kilowatts needed for line motor, it is non-that common electrical excitation mode reaches the exciting current that required magnetic field intensity is applied
Chang great, influences efficiency and motor volume is larger, and permanent magnet excitation mode then needs more permanent magnet, and cost is higher.In recent years,
Increasingly mature with high temperature superconductor technology, high-temperature superconducting motor is because it can provide high-power, in light weight, small volume, effect
The advantages of rate is high is increasingly taken seriously in straight drive application, and the type motor is widely paid close attention to and studied at this stage.
Compared with secondary excitation type linear electric motors, primary excitation type linear electric motors have a clear superiority：Exciting Windings for Transverse Differential Protection and electricity
Pivot winding is placed in short primary, and long secondary is only the salient pole slab construction being made up of iron core, can substantially reduce cost.This
Outside, the motor majority of conventional rails train is three-phase structure, coupled between three-phase compared with it is strong, fault-tolerance is low, once run into prominent
Hair-like condition, such as when certain mutually breaks down, whole motor will be out of service, and reliability is poor.Based on above-mentioned background, one is developed
Kind of power is big, efficiency high, zmodem, expansion are strong, and easily opening up mutually primary high-temperature superconductor field excitation linear motor has important reason
By meaning and engineering practical value.
The content of the invention
Technical problem：Existing track traffic motor efficiency is low, manufacturing cost is high, fault-tolerance in order to solve by the present invention
The problem of difference, expansion difference, there is provided one kind easily opens up mutually primary high-temperature superconductor field excitation linear motor topology structure.
Technical scheme：In order to solve the above technical problems, it is straight easily to open up mutually primary high-temperature superconductor excitation the invention provides one kind
Line motor, the motor are provided with air gap using short primary mover, long secondary stator structure between primary and secondary；
The short primary mover is made up of some facies units along the arrangement of direction of motion equi-spaced apart, and each facies unit wraps
Plate primary iron core is included, protrudes from primary iron core surface between two parties and the primary salient pole towards long secondary stator, is wound on primary
High-temperature superconductor Exciting Windings for Transverse Differential Protection on salient pole, protrude from primary end surfaces of iron core two and two primary long towards long secondary stator
Tooth, protrude from primary end surfaces of salient pole two and short towards the two primary short teeth, Neighboring primary long tooth and primary of long secondary stator
Magnetic barrier, the primary armature winding being wound in Neighboring primary long tooth and primary short tooth are filled between tooth；
The long secondary stator include plate secondary iron core, it is some equidistantly protrude from secondary iron core surface and towards it is short just
The secondary salient pole of level mover；
Preferably, the short primary mover uses facies unit modularized design, and each facies unit is a monophase machine,
It is independent and symmetrical between facies unit, zmodem, and multiphase expansion is easily achieved, facilitate motor dilatation；
Preferably, the facies unit is equipped with an Exciting Windings for Transverse Differential Protection, and excitation mode uses high-temperature superconductor excitation, each phase list
First Exciting Windings for Transverse Differential Protection winding method, the Exciting Windings for Transverse Differential Protection number of turn, exciting current size and direction all same；
Preferably, the primary armature winding of each facies unit is formed by two coils, and each coil winding is in phase
In adjacent primary long tooth and primary short tooth, two coil differential concatenations, maximum phase induced potential is realized；
Preferably, the magnetic barrier set on the facies unit is made up of non-magnet material, plays separated magnetic effect；
Preferably, the primary iron core, primary salient pole, primary long tooth, primary short tooth, secondary iron core, secondary salient pole by
The good silicon steel plate stacking of magnetic property forms；
Preferably, the width of the primary long tooth and primary short tooth is equal and is less than the width of secondary salient pole.
Beneficial effects of the present invention：The invention provides a kind of easily mutually primary high-temperature superconductor excitation is opened up for track traffic
Linear electric motors, with it is existing for the permanent magnetic linear synchronous motor of track traffic compared with, there is advantages below：
1. the present invention's easily opens up mutually primary high-temperature superconductor field excitation linear motor and uses high-temperature superconductor excitation mode, with common
Electrical excitation mode compares with permanent magnet excitation, has the characteristics of big power, in light weight, small volume, efficiency high；
2. the present invention's easily opens up mutually primary high-temperature superconductor field excitation linear motor, using short primary mover, long secondary stator knot
Structure, short primary mover use facies unit modularized design, independent and symmetrical between facies unit, zmodem, and are easily achieved more
Mutually expand, facilitate motor dilatation；
3. the present invention's easily opens up mutually primary high-temperature superconductor field excitation linear motor, Exciting Windings for Transverse Differential Protection and armature winding are placed in short first
Level mover, long secondary stator is only the salient pole slab construction being made up of silicon steel sheet, is easy to lay in track traffic middle and long distance, knot
Structure is simple and reliable, cost is low.
Brief description of the drawings
Fig. 1 is the structural representation for easily opening up mutually primary high-temperature superconductor field excitation linear motor.
Have in figure：Short primary mover 1, primary iron core 11, primary salient pole 12, high-temperature superconductor Exciting Windings for Transverse Differential Protection 13, primary long tooth
14, primary short tooth 15, magnetic barrier 16, primary armature winding 17, long secondary stator 2, secondary iron core 21, secondary salient pole 22, air gap 3.
Fig. 2 is the dimensional parameters mark figure for easily opening up mutually primary high-temperature superconductor field excitation linear motor.
W in figurepFor the width of each facies unit in short primary mover 1, τsFor neighboring secondary salient pole 22 in long secondary stator 2
Between centre-to-centre spacing, λpFor the centre-to-centre spacing between adjacent facies unit in short primary mover 1.
Embodiment
Mutually primary high-temperature superconductor field excitation linear motor is easily opened up the invention provides a kind of, the motor is using long secondary short primary
Structure, including short primary mover 1, long secondary stator 2 and the air gap being arranged between short primary mover 1 and long secondary stator 2
3；
The short primary mover 1 is made up of some facies units along the arrangement of direction of motion equi-spaced apart, and each facies unit is equal
Including plate primary iron core 11, protrude between two parties the primary surface of iron core 11 and primary salient pole 12 towards long secondary stator, around
The high-temperature superconductor Exciting Windings for Transverse Differential Protection 13 on primary salient pole 12 is made, protrudes from primary 11 liang of end surfaces of iron core and be fixed towards long secondary
Two primary long tooths 14 of son, protrude from primary 12 liang of end surfaces of salient pole and two primary short teeth 15 towards long secondary stator,
Magnetic barrier 16 is filled between Neighboring primary long tooth 14 and primary short tooth 15, is wound in Neighboring primary long tooth 14 and primary short tooth 15
Primary armature winding 17；
The long secondary stator 2 includes plate secondary iron core 21, some equidistantly protrudes from the secondary surface of iron core 21 and court
To the secondary salient pole 22 of short primary mover；
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, air gap 3 is set, to ensure that primary can between short primary mover 1 and long secondary stator 2 of the invention
Free movement.
The short primary mover 1 uses facies unit modularized design, and each facies unit is a monophase machine, facies unit
Between independent and symmetrical, zmodem, and be easily achieved multiphase expansion, facilitate motor dilatation.
Each facies unit is equipped with an Exciting Windings for Transverse Differential Protection 13, and excitation mode uses high-temperature superconductor excitation, each phase list
First Exciting Windings for Transverse Differential Protection winding method, the Exciting Windings for Transverse Differential Protection number of turn, exciting current size and direction all same.
The primary armature winding 17 of each facies unit is formed by two coils, and each coil winding is at the beginning of adjacent
In level long tooth 14 and primary short tooth 15, two coil differential concatenations, maximum phase induced potential is realized.
The magnetic barrier 16 set on the facies unit is made up of non-magnet material, plays separated magnetic effect.
It is described primary iron core 11, primary salient pole 12, primary long tooth 14, primary short tooth 15, secondary iron core 21, secondary convex
Pole 22 forms by the good silicon steel plate stacking of magnetic property.
Referring to Fig. 2, the width of each facies unit in the short primary mover 1：wp, neighboring secondary is convex in long secondary stator 2
Centre-to-centre spacing between pole 22：τs, meet following relation (I)：
τs=4wp/7 (I)
Centre-to-centre spacing in the short primary mover 1 between adjacent facies unit：λp, facies unit number be the number of phases：M, it is long secondary
Centre-to-centre spacing in stator 2 between neighboring secondary salient pole 22：τs, meet following relation (II)：
λp=(k-1/m) τs (II)
In formula (II), k, m are the positive integer more than 2；
The primary long tooth 14 is equal with the width of primary short tooth 15 and is less than the width of secondary salient pole 22.
Both it is different from existing secondary permanent magnet excitation linear electric motors, is different from existing primary permanent magnet excitation or primary electrical again
Excitation structure, what the present invention was carried easily opens up mutually primary high-temperature superconductor field excitation linear motor and uses high-temperature superconductor excitation, can be significantly
Air-gap field intensity is improved, there is the characteristics of high thrust density；Linear electric motors high temperature superconduction Exciting Windings for Transverse Differential Protection of the present invention
It is both placed in armature winding on short primary mover, long secondary stator is only the salient pole slab construction being made up of silicon steel sheet, is easy to
Laid in track traffic middle and long distance, simple and reliable for structure, cost is low；Linear electric motors of the present invention use short primary mover
Long secondary stator structure, short primary mover use facies unit modularized design, it is easy to accomplish multiphase is expanded, and facilitates motor dilatation.
The linear electric motors of the present invention utilize secondary salient pole and magnetic resistance change rate caused by primary teeth relative motion so that primary electrical
The magnetic flux generating period sexual intercourse of pivot winding linkage becomes, so as to induce potential.So proposed by the present invention easily open up mutually primary high temperature
Superconduction field excitation linear motor has this in theory analysis, Optimal Structure Designing, parameter calculating etc. with existing linear electric motors
The difference of matter.
Due to operation principle and the particularity of structure, the number of the facies unit high temperature superconduction Exciting Windings for Transverse Differential Protection 13： Nf、
The number of primary long tooth 14：N1, primary short tooth 15 number：N2, primary armature winding 17 coil number：Nc, meet with ShiShimonoseki
It is (III)：
N1=N2=Nc=2Nf (III)
The foregoing is only the present invention better embodiment, protection scope of the present invention not using above-mentioned embodiment as
Limit, as long as equivalent modification that those of ordinary skill in the art are made according to disclosed content or change, should all include power
Protection described in sharp claim.
Claims (7)
1. one kind easily opens up mutually primary high-temperature superconductor field excitation linear motor, the motor uses long secondary short primary structure, including short first
Level mover (1), long secondary stator (2) and the air gap (3) being arranged between short primary mover (1) and long secondary stator (2)；
The short primary mover (1) is made up of some facies units along the arrangement of direction of motion equi-spaced apart, and each facies unit wraps
Plate primary iron core (11) is included, protrudes from primary iron core (11) surface between two parties and towards the primary salient pole of long secondary stator
(12) the high-temperature superconductor Exciting Windings for Transverse Differential Protection (13) that, is wound on primary salient pole (12), protrude from the primary end surfaces of iron core (11) two and
Two primary long tooths (14) towards long secondary stator, protrude from the primary end surfaces of salient pole (12) two and towards long secondary stator
Between two primary short teeth (15), Neighboring primary long tooth (14) and primary short teeth (15) fill magnetic barrier (16), be wound on it is adjacent just
Primary armature winding (17) in level long tooth (14) and primary short tooth (15)；
The long secondary stator (2) include plate secondary iron core (21), it is some equidistantly protrude from secondary iron core (21) surface and
Towards the secondary salient pole (22) of short primary mover；
The width of each facies unit in the short primary mover (1)：wp, in long secondary stator (2) between neighboring secondary salient pole (22)
Centre-to-centre spacing：τs, meet following relation (I)：
τs=4wp/7 (I)
Centre-to-centre spacing in the short primary mover (1) between adjacent facies unit：λp, facies unit number be the number of phases：M, long secondary stator
(2) centre-to-centre spacing between neighboring secondary salient pole (22)：τs, meet following relation (II)：
λp=(k-1/m) τs (II)
In formula (II), k, m are the positive integer more than 2；
The number of the facies unit high temperature superconduction Exciting Windings for Transverse Differential Protection (13)：Nf, primary long tooth (14) number：N1, primary short tooth
(15) number：N2, primary armature winding (17) coil number：Nc, meet following relation (III)：
N1=N2=Nc=2Nf (III)。
2. one kind according to claim 1 easily opens up mutually primary high-temperature superconductor field excitation linear motor, it is characterised in that described short
Primary mover (1) uses facies unit modularized design, and each facies unit is a monophase machine, independent and right between facies unit
Claim, zmodem, and be easily achieved multiphase expansion, facilitate motor dilatation.
3. one kind according to claim 2 easily opens up mutually primary high-temperature superconductor field excitation linear motor, it is characterised in that the phase
Unit is equipped with an Exciting Windings for Transverse Differential Protection, and excitation mode uses high-temperature superconductor excitation, each facies unit Exciting Windings for Transverse Differential Protection winding method, encouraged
Magnetic umber of turn, exciting current size and direction all same.
4. one kind according to claim 2 easily opens up mutually primary high-temperature superconductor field excitation linear motor, it is characterised in that described every
The primary armature winding (17) of individual facies unit is formed by two coils, each coil winding in adjacent primary long tooth (14) and
On primary short tooth (15), two coil differential concatenations, maximum phase induced potential is realized.
5. one kind according to claim 2 easily opens up mutually primary high-temperature superconductor field excitation linear motor, it is characterised in that the phase
The magnetic barrier (16) set on unit is made up of non-magnet material, plays separated magnetic effect.
6. one kind according to claim 1 easily opens up mutually primary high-temperature superconductor field excitation linear motor, it is characterised in that primary iron
Core (11), primary salient pole (12), primary long tooth (14), primary short tooth (15), secondary iron core (21), secondary salient pole (22) are by leading
The good silicon steel plate stacking of magnetic property forms.
7. one kind according to claim 1 easily opens up mutually primary high-temperature superconductor field excitation linear motor, it is characterised in that primary is long
Tooth (14) and the width of primary short tooth (15) it is equal and less than secondary salient pole (22) width.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699965.8A CN107493002B (en) | 2017-08-16 | 2017-08-16 | It is a kind of easily to open up mutually primary high-temperature superconductor field excitation linear motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699965.8A CN107493002B (en) | 2017-08-16 | 2017-08-16 | It is a kind of easily to open up mutually primary high-temperature superconductor field excitation linear motor |
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| CN107493002A true CN107493002A (en) | 2017-12-19 |
| CN107493002B CN107493002B (en) | 2019-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302048A (en) * | 2018-12-04 | 2019-02-01 | 西安电子科技大学 | A kind of excitation system and exciting method of bulk type high-temperature superconducting motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834512A (en) * | 2010-05-24 | 2010-09-15 | 东南大学 | Complementary modular hybrid excited linear motor |
| CN103259383A (en) * | 2013-05-10 | 2013-08-21 | 江苏大学 | Fully superconducting linear motor of single low-temperature retainer |
| CN203617874U (en) * | 2013-11-19 | 2014-05-28 | 江苏大学 | Magnetic flux reverse mixed excitation linear motor with tangential magnetizing |
| CN104600951A (en) * | 2015-01-30 | 2015-05-06 | 南京航空航天大学 | Primary electrically-excited series magnetic circuit double-side linear motor |
| CN104638796A (en) * | 2015-01-29 | 2015-05-20 | 南京航空航天大学 | Magnetic circuit compensating primary electro-magnetic linear motor |
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2017
- 2017-08-16 CN CN201710699965.8A patent/CN107493002B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834512A (en) * | 2010-05-24 | 2010-09-15 | 东南大学 | Complementary modular hybrid excited linear motor |
| CN103259383A (en) * | 2013-05-10 | 2013-08-21 | 江苏大学 | Fully superconducting linear motor of single low-temperature retainer |
| CN203617874U (en) * | 2013-11-19 | 2014-05-28 | 江苏大学 | Magnetic flux reverse mixed excitation linear motor with tangential magnetizing |
| CN104638796A (en) * | 2015-01-29 | 2015-05-20 | 南京航空航天大学 | Magnetic circuit compensating primary electro-magnetic linear motor |
| CN104600951A (en) * | 2015-01-30 | 2015-05-06 | 南京航空航天大学 | Primary electrically-excited series magnetic circuit double-side linear motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302048A (en) * | 2018-12-04 | 2019-02-01 | 西安电子科技大学 | A kind of excitation system and exciting method of bulk type high-temperature superconducting motor |
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| CN107493002B (en) | 2019-05-03 |
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