CN105680667A - High-temperature superconducting linear induction motor driving apparatus used for linear traction - Google Patents
High-temperature superconducting linear induction motor driving apparatus used for linear traction Download PDFInfo
- Publication number
- CN105680667A CN105680667A CN201610122107.2A CN201610122107A CN105680667A CN 105680667 A CN105680667 A CN 105680667A CN 201610122107 A CN201610122107 A CN 201610122107A CN 105680667 A CN105680667 A CN 105680667A
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- iron core
- temperature
- temperature superconducting
- induction motor
- linear induction
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K55/00—Dynamo-electric machines having windings operating at cryogenic temperatures
Abstract
The invention discloses a high-temperature superconducting linear induction motor driving apparatus used for linear traction. Secondary windings adopt high-temperature superconducting coils (102) put in a secondary iron core (101), and the windings are arranged at the same interval; each high-temperature superconducting coil (102) is a closed coil and singly fixed to a magnet yoke groove of the secondary iron core (101); the high-temperature superconducting coils (102) adopt cake-shaped structures and provided with runway-shaped sections; a secondary assembly is placed in a low-temperature container; an air gap (4) is formed between the bottom plane of the secondary iron core (101) and the upper surface of a primary iron core (202); and the conventional primary iron core (202) and the three-phase symmetrical windings (201) are fixed to the ground. The linear driving apparatus is small in volume, light in weight, high in efficiency, high in thrust and high in loading capability; the reliability of the apparatus is greatly improved and the service life of the apparatus is greatly prolonged; and the high-temperature superconducting linear induction motor driving apparatus can be widely applied to cargo sorting systems, linear induction doors, lathes, trains, metros and the like.
Description
Technical field
The present invention proposes a kind of linear motor driver, particularly relates to a kind of straight line traction high-temperature super conductive linear motor driving device.
Background technology
Linear induction machine actuating device relies on elementary three-phase windings to produce travelling-magnetic-field, electric current is induced in secondary, and then motor will make translational motion under the effect of ampere power, thus just can directly produce thrust without the need to buffering mechanism, this just makes it in industrial application than traditional rotating machine advantageously. Therefore, since Hui Sideng in 1845 invents first straight line motor, it is just treated with special respect by people. After particularly high-temperature superconductor finds, the development of straight line motor just enters the new stage. Along with the continuous improvement of superconducting material technology of preparing, the performance of high-temperature superconductor improves constantly, and cost also significantly declines, this more a step facilitate development and the application of superconducting linear motor.
Meanwhile, along with the raising that the aspect such as precision and efficiency is required by development and the industrial application of society, the shortcoming of the aspects such as traditional line induction motor air gap is little, loss is big, thrust is little is day by day outstanding. Owing to the resistivity ratio plain metal of superconducting material is little many, bigger electric current can be induced at identical conditions, and then produce bigger thrust, be very suitable for needing during straight line draws the occasion of air gaps, strong thrust.
Summary of the invention
The object of the present invention is exactly to overcome above defect, a kind of pushing force density height is provided, electric energy loss is little, and carrying load ability is strong, and travelling speed is fast and secondary winding is the track straight line traction high-temperature super conductive linear motor driving device of cake formula racetrack high temperature superconductive wire coil structures.
For achieving the above object, the technical scheme of the present invention is:
A kind of straight line traction high-temperature superconducting linear Induction Motor Drive device, comprises the secondary of tradition elementary 2 and portion placed on it; Elementary 2 are made up of the elementary iron core 202 of tradition and three-phase symmetric winding 201. Secondary component 1 is formed by secondary iron core 101 and secondary winding;High temperature superconductor coil 102 as secondary winding is placed in secondary iron core 101 and winding arranges according to same intervals. Each high temperature superconductor coil 102 is closing coil, is fixed on separately in secondary iron core 101 yoke groove; High temperature superconductor coil 102 is cake formula structure, and has racetrack cross section; Described secondary component is placed in low-temperature (low temperature) vessel 3, has air gap 4 between the base plane of secondary iron core 101 and elementary iron core upper surface 202.
Further, described secondary iron core 101 adopts high permeability and the processing of high conductivity soft iron monoblock obtained.
Described high temperature superconductor coil is become by belt material of high temperature superconduct coiling.
Described low-temperature (low temperature) vessel 3 is imported and exported 303 by cooling fluid and is connected with cooling apparatus 304 with cooling liquid inlet valve 305, and cooling liquid outlet valve 306 carries out liquid nitrogen recovery, and venting port 302 carries out air pressure adjustment.
Described it be positioned at the base plane of secondary iron core 101 do not produce the unexpected safety contacted with the air gap 4 between elementary iron core upper surface 202 be highly 10～20mm.
The advantage of the traction high-temperature super conductive linear motor driving device that the present invention proposes is: structurally, it is secondary that high temperature superconductor coil is used for high-temperature super conductive linear motor by the present invention, can utilize superconducting coil resistance level off to zero advantage, induce the electric current much larger than conventional coil, improve the electromagnetic push of straight line motor, play the electromagnetic property that it is superior to greatest extent; Owing to the size of electromagnetic actuation force to secondary induction electric current is directly proportional, the characteristic of business soft iron high magnetic permeability and high conductivity can be fully used, adopt monoblock soft iron to process, also avoid superconducting tape to be in vertical magnetic field to cause the decay of superconductivity simultaneously. It is little that the motor made according to the method has volume, and weight is light, efficiency height, the advantage that thrust is big, and reliability and life-span greatly improve simultaneously, it is possible to be widely used in the aspects such as goods sorting system, linear induction door, lathe, train, subway.
Accompanying drawing explanation
Fig. 1 straight line traction straight line motor is always schemed;
The two-dimentional front view of Fig. 2 straight line traction high-temperature super conductive linear motor driving device;
The oblique second-class axonometric drawing of Fig. 3 straight line traction high-temperature super conductive linear motor driving device;
The oblique second-class axonometric drawing of Fig. 4 secondary component;
The oblique second-class axonometric drawing of Fig. 5 primary component;
The oblique second-class axonometric drawing of Fig. 6 high temperature superconductor coil;
Fig. 7 superconduction cooling system, high temperature superconductor coil and secondary iron core schematic diagram.
Secondary iron core 101, high temperature superconductor coil 102, low-temperature (low temperature) vessel wall 301, venting hole 302, armature winding 201, elementary iron core 202, air gap 4, cooling fluid inlet/outlet pipe 303, low-temperature cooling system 304, cooling liquid inlet valve 305, cooling liquid outlet valve 306.
Embodiment
The present invention is explained in detail with reference to accompanying drawing below in conjunction with example.
With reference to Fig. 2 and Fig. 7, a kind of straight line traction high-temperature super conductive linear motor driving device, has primary component, secondary component and cooling system (cooling fluid import and export 303, low-temperature (low temperature) vessel 3, venting hole 302, cooling apparatus 304, cooling fluid inlet pipe valve 305 and cooling liquid outlet valve 306) composition.
With reference to Fig. 3, Fig. 4 and Fig. 6, high temperature superconductor coil 102, adopts cake formula structure, racetrack cross section, and winding is arranged in the groove of secondary iron core 101 according to same intervals; High temperature superconductor coil 102 and secondary iron core 101 form secondary component, and secondary component is placed in low-temperature (low temperature) vessel 3.
The core structure that high temperature superconductor coil 102 uses is similar with the magnetic yoke structure of conventional permanent-magnetism linear motor, but have employed the business soft iron material of high conductivity. The superconducting material that high-temperature superconductor uses becomes (or other high temperature superconducting materia) for a generation (Bi2223) or two generations (YBCO) band coiling.
Elementary iron core 202 and armature winding 201 fix on the ground.
With reference to Fig. 2, it is highly air gap 4 that elementary iron core 202 upper plane does not produce the unexpected safety contacted with secondary iron core 101 lower flat part, is highly 10～20mm.
Air gap 4 is determined according to practical situations, air gap height should be made as far as possible little but consider again reality machining precision, the convenience of installation and actual motion prevent elementary and move secondary between the factor such as contact, adopting the best safety air gap height of secondary iron core 101 and elementary iron core 202, safety is highly 10～20mm. Width of air gap and length should motivating force as required adjust, and width and length are more big, and motivating force is more big.
With reference to Fig. 2 and 7, in order to make the high temperature superconductor coil 102 in low-temperature (low temperature) vessel 3 be in superconducting state, straight line traction high-temperature super conductive linear motor driving device is provided with cooling apparatus 304. High temperature superconductor coil is placed in low-temperature (low temperature) vessel 3, low-temperature (low temperature) vessel 3 is connected by cooling liquid inlet valve 305 with cooling apparatus, supplement the liquid nitrogen of volatilization at any time, venting hole 302 is for getting rid of the liquid nitrogen of volatilization, reduce the pressure in low-temperature (low temperature) vessel 3, making liquid nitrogen can inject low-temperature (low temperature) vessel 3 easily from cyrogenic equipment 304, when overhauling or stop using for a long time, cooling fluid is reclaimed by cooling liquid outlet valve 306. Cooling apparatus 304 moves together with secondary.
Below the working process of straight line traction high-temperature super conductive linear motor driving device of the present invention is described.
When equipment needs work, in armature winding, logical three-phase alternating current, forms closed magnetic circuit through elementary iron core 202, air gap 4 and secondary iron core. Inducing bigger electric current in high temperature superconductor coil, the travelling-magnetic-field interaction simultaneously produced with armature winding just can produce very big motivating force makes system worked well.
Claims (5)
1. a straight line traction high-temperature superconducting linear Induction Motor Drive device, comprises tradition elementary (2) and portion placed on it secondary; Elementary (2) are made up of the elementary iron core of tradition (202) and three-phase symmetric winding (201); It is characterized in that, form secondary component (1) by secondary iron core (101) and secondary winding; Secondary winding employing high temperature superconductor coil (102) is placed in secondary iron core (101) and winding arranges according to same intervals, each high temperature superconductor coil (102) is closing coil, is fixed on separately in secondary iron core (101) yoke groove; High temperature superconductor coil (102) is cake formula structure, and has racetrack cross section; Described secondary component is placed in low-temperature (low temperature) vessel (3), has air gap (4) between the base plane of secondary iron core (101) and elementary iron core upper surface (202).
2. straight line traction high-temperature superconducting linear Induction Motor Drive device according to claim 1, it is characterised in that, described secondary iron core (101) adopts high permeability and the processing of high conductivity soft iron monoblock obtained.
3. straight line traction high-temperature superconducting linear Induction Motor Drive device according to claim 1, it is characterised in that, described high temperature superconductor coil is become by belt material of high temperature superconduct coiling.
4. straight line traction high-temperature superconducting linear Induction Motor Drive device according to claim 1, it is characterized in that, described low-temperature (low temperature) vessel (3) is imported and exported (303) by cooling fluid and is connected with cooling apparatus (304) with cooling liquid inlet valve (305), cooling liquid outlet valve (306) carries out liquid nitrogen recovery, and venting port (302) carries out air pressure adjustment.
5. straight line traction high-temperature superconducting linear Induction Motor Drive device according to claim 1, it is characterized in that, described in be positioned at the base plane of secondary iron core (101) do not produce the unexpected safety contacted with the air gap (4) between elementary iron core upper surface (202) be highly 10～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610122107.2A CN105680667A (en) | 2016-03-04 | 2016-03-04 | High-temperature superconducting linear induction motor driving apparatus used for linear traction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610122107.2A CN105680667A (en) | 2016-03-04 | 2016-03-04 | High-temperature superconducting linear induction motor driving apparatus used for linear traction |
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| CN105680667A true CN105680667A (en) | 2016-06-15 |
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| CN201610122107.2A Pending CN105680667A (en) | 2016-03-04 | 2016-03-04 | High-temperature superconducting linear induction motor driving apparatus used for linear traction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243524A (en) * | 2019-07-15 | 2019-09-17 | 西南交通大学 | A kind of three-axis force performance testing device of high thrust superconducting linear motor |
| CN110356243A (en) * | 2019-08-02 | 2019-10-22 | 成都睿逸谷科技有限责任公司 | High-temperature superconducting magnetic levitation structure and high-temperature superconductor band magnetic suspension train |
| CN112829772A (en) * | 2019-11-22 | 2021-05-25 | 崔彬 | Electromagnetic power device of fluid film suspension vehicle system |
| CN113727482A (en) * | 2021-08-31 | 2021-11-30 | 南京邮电大学 | Superconducting linear induction heating device |
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| DE3041940A1 (en) * | 1980-11-06 | 1982-06-09 | Krauss-Maffei AG, 8000 München | Magnetic suspension vehicle support, drive and current transmission - has support magnetic core of several core sections with groove-free pole surfaces and linear generator core between two core sections |
| CN101192463A (en) * | 2006-11-29 | 2008-06-04 | 上海磁浮交通工程技术研究中心 | High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train |
| CN102001014A (en) * | 2010-11-19 | 2011-04-06 | 沈阳工业大学 | Magnetic suspension feeding platform of long stator hybrid excitation linear synchronous motor |
| CN102025315A (en) * | 2010-12-15 | 2011-04-20 | 北京交通大学 | Separation cooling type high-temperature superconducting linear motor driving device for rail transit |
| CN205622480U (en) * | 2016-03-04 | 2016-10-05 | 西南交通大学 | Straight line pulls device with high -temperature superconductor linear induction motor drive |
-
2016
- 2016-03-04 CN CN201610122107.2A patent/CN105680667A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3041940A1 (en) * | 1980-11-06 | 1982-06-09 | Krauss-Maffei AG, 8000 München | Magnetic suspension vehicle support, drive and current transmission - has support magnetic core of several core sections with groove-free pole surfaces and linear generator core between two core sections |
| CN101192463A (en) * | 2006-11-29 | 2008-06-04 | 上海磁浮交通工程技术研究中心 | High temperature superconducting magnet applied in electromagnetic suspension type high speed magnetic levitation train |
| CN102001014A (en) * | 2010-11-19 | 2011-04-06 | 沈阳工业大学 | Magnetic suspension feeding platform of long stator hybrid excitation linear synchronous motor |
| CN102025315A (en) * | 2010-12-15 | 2011-04-20 | 北京交通大学 | Separation cooling type high-temperature superconducting linear motor driving device for rail transit |
| CN205622480U (en) * | 2016-03-04 | 2016-10-05 | 西南交通大学 | Straight line pulls device with high -temperature superconductor linear induction motor drive |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243524A (en) * | 2019-07-15 | 2019-09-17 | 西南交通大学 | A kind of three-axis force performance testing device of high thrust superconducting linear motor |
| CN110243524B (en) * | 2019-07-15 | 2024-04-05 | 西南交通大学 | Triaxial force performance testing device of high-thrust superconducting linear motor |
| CN110356243A (en) * | 2019-08-02 | 2019-10-22 | 成都睿逸谷科技有限责任公司 | High-temperature superconducting magnetic levitation structure and high-temperature superconductor band magnetic suspension train |
| CN112829772A (en) * | 2019-11-22 | 2021-05-25 | 崔彬 | Electromagnetic power device of fluid film suspension vehicle system |
| CN113727482A (en) * | 2021-08-31 | 2021-11-30 | 南京邮电大学 | Superconducting linear induction heating device |
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Application publication date: 20160615 |
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