CN113394946A - Linear synchronous motor system with redundancy function for magnetic levitation traffic - Google Patents
Linear synchronous motor system with redundancy function for magnetic levitation traffic Download PDFInfo
- Publication number
- CN113394946A CN113394946A CN202110505335.9A CN202110505335A CN113394946A CN 113394946 A CN113394946 A CN 113394946A CN 202110505335 A CN202110505335 A CN 202110505335A CN 113394946 A CN113394946 A CN 113394946A
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- Prior art keywords
- linear
- linear motor
- motor stator
- synchronous motor
- linear synchronous
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 27
- 238000005339 levitation Methods 0.000 title claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Linear Motors (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention relates to a linear synchronous motor system with a redundancy function for magnetic suspension traffic, which comprises at least two groups of linear motor stators (1) in the same traction subarea, wherein each group is respectively provided with a power supply for independent power supply, any group of linear motor stators (1) comprises a plurality of linear motor stator modules (11) which are distributed in a dispersed manner, the linear motor stator modules (11) are laid along the length direction of a track, any two adjacent linear motor stator modules (11) are supplied with power by different power supplies, and the length of any one linear motor stator module (11) is smaller than the length of a train with the minimum marshalling. Compared with the prior art, the invention ensures the running safety and reliability of the magnetic-levitation train.
Description
Technical Field
The invention relates to the technical field of magnetic suspension traffic, in particular to a linear synchronous motor system with redundant function for magnetic suspension traffic.
Background
The running speed of the magnetic suspension train can reach more than 500km/h, and the magnetic suspension train is the traffic tool with the highest ground speed at present. The magnetic suspension train realizes the non-contact operation with the ground, has superior technical and economic characteristics in the aspects of running speed, operation cost, noise pollution, electromagnetic radiation, land occupation and the like, represents the technical development trend of the high-speed railway in the 21 st century, and has incomparable advantages compared with other ground traffic technologies in the technology. The magnetic suspension train is driven by a linear motor, and the motor types comprise a short stator linear induction motor for low-speed magnetic suspension and a long stator linear synchronous motor for medium and high speed. The long-stator linear synchronous motor is further divided into a long-stator linear synchronous motor with an electro-magnetic rotor, a long-stator linear synchronous motor with a superconducting magnet rotor and a long-stator linear synchronous motor with a permanent magnet stator. At present, most of magnetic suspension traffic systems adopt linear motor stators to be arranged on two sides of a track, the linear motor stators on each side form a group, and each group of linear motor stators are divided into a plurality of sections at certain intervals. Each group of linear motor stators are powered by a group of independent power supplies, 2 groups of independent linear motors are guaranteed to drive the magnetic suspension train at any time, and therefore when one group of linear motors fails, the other group of linear motors can still work, and the safe operation of the magnetic suspension train is guaranteed. In some special magnetic levitation systems (such as superconducting block suspension magnetic levitation traffic), a stator of a linear motor needs to be placed in the middle of a track, so that a specific special design is needed to realize the redundancy function of the linear motor.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and to provide a redundant linear synchronous motor system for magnetic levitation transportation.
The purpose of the invention can be realized by the following technical scheme:
a linear synchronous motor system with a redundancy function for magnetic suspension traffic comprises at least two groups of linear motor stators in the same traction subarea, wherein each group is respectively provided with a power supply for independent power supply, any group of linear motor stators comprise a plurality of linear motor stator modules which are dispersedly arranged, the linear motor stator modules are laid along the length direction of a track, any two adjacent linear motor stator modules are supplied with power by different power supplies, and the length of any one linear motor stator module is smaller than the length of a train with the minimum marshalling.
Preferably, the linear motor stator is laid in the middle of the track.
Preferably, each set of linear motor stators shares a set of power supply sources.
Preferably, a plurality of linear motor stator modules belonging to the same group in the same traction subarea are connected in series through a cable.
Preferably, the length of any one linear motor stator module is no more than 2/3 of the minimum consist train length.
Preferably, the lengths of all linear motor stator modules in the system located in the same traction subarea are set to be equal, or the lengths of all linear motor stator modules are set to be unequal according to line conditions.
Preferably, the linear motor comprises a three-phase or multi-phase linear synchronous motor.
Preferably, the linear motor stator is an ironless winding or an ironed winding.
Preferably, the mover of the linear synchronous motor is mounted on the vehicle and is a permanent or electrically excited mover.
Preferably, two groups of linear motor stators are arranged in the same traction subarea.
Compared with the prior art, the invention has the following advantages:
(1) the invention solves the problem of redundant function when the linear motor is arranged at the middle position of the track in a magnetic suspension traffic system, a plurality of groups of linear motor stators are arranged in the same traction subarea, and the linear motor stators are divided into a plurality of linear motor stator modules, the staggered arrangement mode is adopted to ensure that any two adjacent linear motor stator modules are supplied with power by different power supply sources, when any one linear motor stator module fails, the train can be driven by the adjacent linear motor stator modules, and the running safety and reliability of the magnetic suspension train are ensured;
(2) the linear motor stator module is simple in wiring and easy to realize.
Drawings
FIG. 1 is a schematic illustration of a stator segment of a traction sub-section in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a traction-zoned linear motor stator module arrangement according to an embodiment of the present invention;
fig. 3 is a diagram of the relationship between the linear motor stator module and the magnetic suspension train in the embodiment of the invention.
In the figure, 1 is a linear motor stator, 11 is a linear motor stator module, 21 is a first power supply, and 22 is a second power supply.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to limit the application or the use thereof, and is not limited to the following embodiments.
Example 1
As shown in fig. 1 to 2, the present embodiment provides a linear synchronous motor system with a redundancy function for magnetic levitation transportation, where the linear motor includes a three-phase or multi-phase linear synchronous motor, and a stator 1 of the linear motor is an ironless winding or an ironed winding. The rotor of the linear synchronous motor is installed on a vehicle and is a permanent magnet or an electric excitation rotor. The linear motor stator 1 is laid in the middle of the track.
The traction sub-area comprises at least two groups of linear motor stators 1, each group is respectively provided with a power supply for independent power supply, and each group of linear motor stators 1 share one group of power supply. In the present embodiment, the linear motor stators 1 are provided in two sets, so that the two sets of power supplies (the first power supply 21 and the second power supply 22) respectively supply power to the two sets of linear motor stators 1.
Any group of linear motor stators 1 comprises a plurality of linear motor stator modules 11 which are dispersedly arranged, the linear motor stator modules 11 are laid along the length direction of the track, any two adjacent linear motor stator modules 11 are supplied with power by different power supplies, and the plurality of linear motor stator modules 11 belonging to the same group in the same traction subarea are connected in series through cables. The lengths of all the linear motor stator modules 11 in the same traction subarea in the system are set to be equal, or the lengths of all the linear motor stator modules 11 are set to be unequal according to the line condition, and the lengths of all the motor stator modules 11 are set to be equal in the embodiment. Any one of the linear motor stator modules 11 is shorter than the minimum consist train length, specifically, any one of the linear motor stator modules 11 is not longer than 2/3 of the minimum consist train length. As shown in fig. 2, since the present embodiment provides two sets of linear motor stators 1, the linear motor stator modules 11 of the two sets of linear motor stators 1 are arranged at intervals, thereby forming the staggered form shown in fig. 2.
As shown in fig. 3, since the length of any one stator module 11 does not exceed 2/3 of the length of the train of the minimum consist, at least two adjacent stator modules 11 drive the train to operate during the train operation, and when one of the modules fails, the other modules drive the train to operate normally.
It should be noted that: in other specific embodiments, three or more groups of linear motor stators 1 may be provided in the same traction partition, but the system is relatively complex when the number of groups is increased, and therefore, the form of providing two groups of linear motor stators 1 in the present embodiment is adopted in the most preferred embodiment.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (10)
1. The linear synchronous motor system with the redundancy function for the magnetic suspension traffic is characterized by comprising at least two groups of linear motor stators (1) in the same traction subarea, wherein each group is respectively provided with a power supply for independent power supply, any one group of linear motor stators (1) comprises a plurality of linear motor stator modules (11) which are distributed in a dispersed mode, the linear motor stator modules (11) are laid along the length direction of a track, any two adjacent linear motor stator modules (11) are supplied with power by different power supplies, and the length of any one linear motor stator module (11) is smaller than the length of a train with the minimum marshalling.
2. A linear synchronous motor system with redundant function for magnetic levitation transport as claimed in claim 1, characterized in that the linear motor stator (1) is laid in the middle of the track.
3. A linear synchronous motor system with redundant function for magnetic levitation transport as claimed in claim 1, characterized in that each set of linear motor stators (1) share one set of power supply.
4. A linear synchronous motor system with redundancy function for magnetic suspension traffic according to claim 3, characterized in that a plurality of linear motor stator modules (11) belonging to the same group in the same traction subarea are connected in series by cables.
5. A linear synchronous motor system with redundant function for magnetic levitation transport according to claim 1, characterized in that the length of any one linear motor stator module (11) does not exceed 2/3 of the length of the minimum marshalling train.
6. A linear synchronous motor system with redundant function for magnetic suspension traffic according to claim 1, characterized in that the lengths of all linear motor stator modules (11) in the same traction subarea are set to be equal, or the lengths of the linear motor stator modules (11) are set to be unequal according to the line condition.
7. The system of claim 1, wherein the linear motor comprises a three-phase or multi-phase linear synchronous motor.
8. The linear synchronous motor system with the redundancy function for the magnetic suspension traffic as claimed in claim 1, characterized in that the linear motor stator (1) is an ironless winding or an ironed winding.
9. The linear synchronous motor system with the redundancy function for the magnetic suspension transportation according to claim 1, wherein the rotor of the linear synchronous motor is installed on the vehicle and is a permanent magnet or an electrically excited rotor.
10. The linear synchronous motor system with the redundant function for the magnetic levitation transport as claimed in any one of claims 1-9, characterized in that two groups of linear motor stators (1) are arranged in the same traction subarea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505335.9A CN113394946A (en) | 2021-05-10 | 2021-05-10 | Linear synchronous motor system with redundancy function for magnetic levitation traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505335.9A CN113394946A (en) | 2021-05-10 | 2021-05-10 | Linear synchronous motor system with redundancy function for magnetic levitation traffic |
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| Publication Number | Publication Date |
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| CN113394946A true CN113394946A (en) | 2021-09-14 |
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| CN202110505335.9A Pending CN113394946A (en) | 2021-05-10 | 2021-05-10 | Linear synchronous motor system with redundancy function for magnetic levitation traffic |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000350312A (en) * | 1999-05-07 | 2000-12-15 | Transrapid Internatl Gmbh & Co Kg | Operating method and apparatus of magnetic vehicle |
| CN102185559A (en) * | 2011-05-30 | 2011-09-14 | 上海磁浮交通发展有限公司 | Relaying control method for long-stator linear synchronous motor |
| CN107161034A (en) * | 2017-05-31 | 2017-09-15 | 中车株洲电力机车有限公司 | A kind of electric power system of magnetic suspension train |
| WO2019024243A1 (en) * | 2017-08-03 | 2019-02-07 | 中车株洲电力机车研究所有限公司 | Long stator power supply section and long stator linear motor for maglev train |
| CN111817639A (en) * | 2019-04-10 | 2020-10-23 | 中车株洲电力机车研究所有限公司 | Power supply system and method for long-stator linear synchronous motor |
-
2021
- 2021-05-10 CN CN202110505335.9A patent/CN113394946A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000350312A (en) * | 1999-05-07 | 2000-12-15 | Transrapid Internatl Gmbh & Co Kg | Operating method and apparatus of magnetic vehicle |
| CN102185559A (en) * | 2011-05-30 | 2011-09-14 | 上海磁浮交通发展有限公司 | Relaying control method for long-stator linear synchronous motor |
| CN107161034A (en) * | 2017-05-31 | 2017-09-15 | 中车株洲电力机车有限公司 | A kind of electric power system of magnetic suspension train |
| WO2019024243A1 (en) * | 2017-08-03 | 2019-02-07 | 中车株洲电力机车研究所有限公司 | Long stator power supply section and long stator linear motor for maglev train |
| CN111817639A (en) * | 2019-04-10 | 2020-10-23 | 中车株洲电力机车研究所有限公司 | Power supply system and method for long-stator linear synchronous motor |
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Application publication date: 20210914 |