CN117002267B - Novel short-stator magnetic levitation train system and control method - Google Patents
Novel short-stator magnetic levitation train system and control method Download PDFInfo
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- CN117002267B CN117002267B CN202311280128.3A CN202311280128A CN117002267B CN 117002267 B CN117002267 B CN 117002267B CN 202311280128 A CN202311280128 A CN 202311280128A CN 117002267 B CN117002267 B CN 117002267B
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- 238000005339 levitation Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000725 suspension Substances 0.000 claims description 56
- 230000001133 acceleration Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000012827 research and development Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Classifications
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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
- B60L13/03—Electric propulsion by linear motors
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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
- B60L13/06—Means to sense or control vehicle position or attitude with respect to railway
-
- 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
- B60L13/10—Combination of electric propulsion and magnetic suspension or levitation
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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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
Abstract
The invention discloses a novel short-stator magnetic levitation train system and a control method, wherein the novel short-stator magnetic levitation train system comprises a train body, a levitation frame, linear motors, levitation devices, a base column, a first guiding device and a second guiding device, wherein the levitation frame is arranged at the bottom of the train body, the linear motors comprise a first linear motor, a second linear motor, a third linear motor and a fourth linear motor, the first linear motor and the second linear motor are symmetrically arranged at two sides of the base column and are positioned at the inner side of the upper end of the levitation frame, the third linear motor and the fourth linear motor are symmetrically arranged at two sides of the base column and are positioned at the inner side of the lower end of the levitation frame, the first linear motor and the second linear motor are configured to generate downward normal force, and the third linear motor and the fourth linear motor are configured to generate upward normal force. The invention can solve the negative influence caused by normal force by means of object understanding coupling under the condition of not limiting the maximum traction output of the linear motor, and lays a foundation for the research and development work of medium-speed magnetic levitation.
Description
Technical Field
The invention relates to the field of rail transit electricity, in particular to a novel short-stator magnetic levitation train system and a control method.
Background
The middle-low speed magnetic levitation train adopts a unilateral linear induction motor, and generates a huge normal force between the vehicle and the reaction rail while generating traction force, wherein the normal force is far greater than the longitudinal thrust in the steady operation process of the motor, and the normal force can have important influence on the bogie, the additional devices from the reaction rail to the track and the running performance of the train. The normal force is restrained by adjusting the slip frequency to make the normal force approach zero, but the proposal limits the maximum output value of the traction force of the motor, which is contrary to the aim of accelerating the vehicle. Meanwhile, a certain scheme is needed, so that the transverse stability of the middle-speed magnetic levitation in high-speed operation and steering is ensured.
Therefore, a novel short-stator magnetic levitation train technical scheme and a control method are required to be provided, negative effects caused by normal force are solved on the premise that traction output of a motor is not affected, and a solution is provided for the problems of insufficient lateral stability, insufficient steering force and the like caused by train speed increasing.
Disclosure of Invention
Therefore, the invention aims to provide a novel short-stator magnetic levitation train system which can solve the negative influence caused by normal force in a physical understanding coupling mode under the condition of not limiting the maximum traction output of a linear motor and lays a foundation for the research and development work of medium-speed magnetic levitation. The aim of the invention is realized by the following technical scheme:
the utility model provides a novel short stator maglev train system, includes automobile body, suspension frame, linear electric motor, suspension device, base post, first guider and second guider, the suspension frame set up in the automobile body bottom, linear electric motor includes first linear electric motor, second linear electric motor, third linear electric motor and fourth linear electric motor, first linear electric motor and second linear electric motor symmetry set up in the both sides of base post just are located the inboard of the upper end of suspension frame, third linear electric motor and fourth linear electric motor symmetry set up in base post both sides just are located the inboard of the lower extreme of suspension frame, first linear electric motor and second linear electric motor are configured to produce down normal force, third linear electric motor and fourth linear electric motor are configured to produce upward normal force.
Further, the suspension device comprises a first suspension device and a second suspension device which are symmetrically arranged on two sides of the base column, the first suspension device comprises a first suspension magnet and a first F-shaped rail arranged above the first suspension magnet, the first suspension magnet is connected with the left inner side of the suspension frame, the first F-shaped rail is arranged on the left upper side of a first supporting beam on the upper surface of the base column, the second suspension device comprises a second suspension magnet and a second F-shaped rail arranged above the second suspension magnet, the second suspension magnet is connected with the right inner side of the suspension frame, and the second F-shaped rail is arranged on the right upper side of a second supporting beam on the upper surface of the base column.
Further, the primary coil of the first linear motor is arranged on the upper surface of the first F-shaped rail, and the primary coil of the second linear motor is arranged on the upper surface of the second F-shaped rail.
Further, the device also comprises a first guiding device and a second guiding device which are symmetrically arranged on two sides of the base column and are independently controlled.
Further, the first guiding device comprises a first guiding electromagnet and a first guiding rail, the second guiding device comprises a second guiding electromagnet and a second guiding rail, the first guiding electromagnet and the second guiding electromagnet are symmetrically arranged at the middle end of the suspension frame, and the first guiding rail and the second guiding rail are symmetrically arranged at two sides of the base column.
Further, the first linear motor and the second linear motor are connected in parallel, and the third linear motor and the fourth linear motor are connected in parallel.
Further, the lengths of the first linear motor, the second linear motor, the third linear motor and the fourth linear motor are equal, the widths of the first linear motor and the second linear motor are equal, and the widths of the third linear motor and the fourth linear motor are equal.
Further, the first linear motor, the second linear motor, the third linear motor and the fourth linear motor are all short-stator linear motors.
Further, the invention also comprises a current receiving device which consists of four power supply rails and four current receiving boots.
The invention further aims to provide a novel short-stator magnetic levitation train control method, which comprises the following steps:
when the train is in the starting process, the suspension device is controlled to work, and the first linear motor, the second linear motor, the third linear motor and the fourth linear motor are controlled to work simultaneously, so that the train is ensured to reach the required maximum acceleration;
when the train reaches the required maximum acceleration, the first linear motor and the second linear motor are controlled to gradually reduce the output;
when the train reaches the rated speed, the first linear motor and the second linear motor are controlled to stop working, and only the third linear motor and the fourth linear motor are controlled to provide traction for the train.
Further, the method further comprises:
in the process of train acceleration, meets the following conditions，/>The method comprises the steps of carrying out a first treatment on the surface of the Wherein,normal force generated for the first linear motor, < >>For the normal force generated by the second linear motor, < >>Normal force generated for the third linear motor, < >>Normal force generated for the fourth linear motor, < >>For the levitation force generated by the first levitation means, < >>For the levitation force generated by the second levitation means, < >>Is the gravity of the train;
when the train is traveling at a rated speed,，/>。
the working principle of the invention is as follows:
the train collects electric energy from the power supply rail through the power receiving boot, and converts the electric energy into three-phase alternating current required by the linear motor, and direct current required by the suspension device and the guiding device through the converter device; in the process of starting the train, the first linear motor, the second linear motor, the third linear motor and the fourth linear motor work simultaneously, so that the train can reach the required maximum acceleration, and the normal force directions of the first linear motor, the second linear motor, the third linear motor and the fourth linear motor acting on the train body are completely opposite, so that the first linear motor, the second linear motor, the third linear motor and the fourth linear motor can offset each other, the influence caused by the normal force is eliminated, and the pressure of the suspension device is reduced; in the acceleration process of the train, the first linear motor and the second linear motor gradually reduce the output along with the gradual reduction of the required acceleration, at the moment, the normal force of the third linear motor and the fourth linear motor acting on the train body is larger than the normal force of the first linear motor and the second linear motor acting on the train body, the resultant force direction of the normal force of the first linear motor, the second linear motor, the third linear motor and the fourth linear motor is the same as the suspension force direction, and the pressure of the suspension device can be relieved by utilizing the resultant force of the normal force; when the train reaches the rated speed, the first linear motor and the second linear motor completely withdraw from working, the third linear motor and the fourth linear motor provide traction force, and the resultant force of the third linear motor and the fourth linear motor acting on the train body is basically kept constant at the moment, and the direction of the resultant force is the same as the direction of the levitation force, so that the first linear motor and the second linear motor can be completely used for supplementing part of levitation force, and the energy consumption of the levitation device is reduced.
Compared with the prior art of short stator magnetic levitation trains, the invention has the beneficial effects that:
1. by means of object understanding coupling, the negative influence of the normal force of the short stator linear motor in the train running process is solved, the complex normal force control method is avoided, meanwhile, the traction force of the motor is kept to be utilized to the maximum, and the capacity waste is avoided.
2. The normal force is used as part of the levitation force to be utilized, so that the running pressure of the levitation device is reduced, and the energy consumption of the levitation system is reduced.
3. The number of the motors of the train is increased, and the maximum power of the train is increased.
4. The first guide device and the second guide device which are symmetrically arranged on two sides of the base column and are independently controlled ensure the transverse stability of the train during high-speed running.
5. The system is easy to reform on the basis of the existing short-stator magnetic levitation train system, and has the advantages of simple structure, reliable technology and easy implementation.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic diagram of a novel short stator maglev train system according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating a normal stress of a novel short stator maglev train system structure according to an exemplary embodiment.
Reference numerals: 1-car body, 2-suspension frame, 3-linear motor, 31-first linear motor, 32-second linear motor, 33-third linear motor, 34-fourth linear motor, 4-suspension device, 41-first suspension device, 411-first suspension magnet, 412-first F-shaped rail, 42-second suspension device, 421-second suspension magnet, 422-second F-shaped rail, 5-base column, 6-first support beam, 7-second support beam, 8-first guide device, 81-first guide electromagnet, 82-first guide rail, 9-second guide device, 91-second guide electromagnet, 92-second guide rail, and 10-current collector.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "middle", "upper", "parallel", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use in the application, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, this embodiment provides a novel short stator maglev train system, including automobile body 1, suspension frame 2, linear electric motor 3, suspension device 4, base post 5, first guider 8 and second guider 9, suspension frame 2 set up in automobile body 1 bottom, linear electric motor 3 includes first linear electric motor 31, second linear electric motor 32, third linear electric motor 33 and fourth linear electric motor 34, first linear electric motor 31 and second linear electric motor 32 symmetry set up in the both sides of base post 5 and be located the inboard of suspension frame 2's upper end, third linear electric motor 33 and fourth linear electric motor 34 symmetry set up in the both sides of base post 5 and be located the inboard of suspension frame 2's lower extreme, first linear electric motor 31 and second linear electric motor 32 are configured to produce downward normal force, third linear electric motor 33 and fourth linear electric motor 34 are configured to produce upward normal force.
In this embodiment, the driving system of the train is composed of the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34, for a single train, the number of the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34 can be set according to actual requirements, for example, in one embodiment, 5 first linear motors 31, 5 second linear motors 32, 5 third linear motors 33 and 5 fourth linear motors 34 are longitudinally arranged along the running direction of the train under a certain single train, that is, 20 linear motors are arranged under the train, so that the train traction work can be jointly borne, specifically, in the starting process of the train, the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34 can work at the same time, so that the required maximum acceleration of the train can be achieved, and as the directions of the first linear motor 31, the second linear motor 32 and the third linear motor 33 and the fourth linear motor 34 acting on the train body are completely opposite, the normal force of the normal force acting on the train can be completely counteracted, and the normal force of the normal force counteracting device can be eliminated; in the acceleration process of the train, as the required acceleration gradually decreases, the first linear motor 31 and the second linear motor 32 gradually decrease the output force, at this time, the normal force of the third linear motor 33 and the fourth linear motor 34 acting on the train body is greater than the normal force of the first linear motor 31 and the second linear motor 32 acting on the train body, the resultant force direction of the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34 is the same as the levitation force direction generated by the levitation device 4, and the pressure of the levitation device can be relieved by using the normal force resultant force; when the train reaches the rated speed, the first linear motor 31 and the second linear motor 32 completely withdraw from working, the third linear motor 33 and the fourth linear motor 34 provide traction force, and the resultant force of the normal force of the third linear motor 33 and the fourth linear motor 34 acting on the train body is basically kept constant, and the direction of the resultant force is the same as the direction of the levitation force, so that the combined force can be completely used for supplementing part of levitation force and reducing the energy consumption of the levitation device.
Preferably, the suspension device 4 includes a first suspension device 41 and a second suspension device 42 symmetrically disposed on two sides of the base column 5, the first suspension device 41 includes a first suspension magnet 411 and a first F-shaped rail 412 disposed above the first suspension magnet 411, the first suspension magnet 411 is connected with the left inner side of the suspension frame 2, the first F-shaped rail 412 is disposed above the left upper side of the first support beam 6 on the upper surface of the base column 5, the second suspension device 42 includes a second suspension magnet 421 and a second F-shaped rail 422 disposed above the second suspension magnet 421, the second suspension magnet 421 is connected with the right inner side of the suspension frame 2, and the second F-shaped rail 422 is disposed above the right upper side of the second support beam 7 on the upper surface of the base column 5.
Preferably, the primary coil of the first linear motor 31 is disposed on the upper surface of the first F-shaped rail 412, and the primary coil of the second linear motor 32 is disposed on the upper surface of the second F-shaped rail 422.
Preferably, the device further comprises a first guiding device 8 and a second guiding device 9 which are symmetrically arranged at two sides of the base column 5 and are independently controlled. The guiding device of the train can ensure the transverse stability of the train during high-speed running.
Preferably, the first guiding device 8 includes a first guiding electromagnet 81 and a first guiding rail 82, the second guiding device 9 includes a second guiding electromagnet 91 and a second guiding rail 92, the first guiding electromagnet 81 and the second guiding electromagnet 91 are symmetrically disposed at the middle end of the suspension frame 2, and the first guiding rail 82 and the second guiding rail 92 are symmetrically disposed at two sides of the base column 5.
Preferably, the first linear motor 31 and the second linear motor 32 are connected in parallel, and the third linear motor 33 and the fourth linear motor 34 are connected in parallel.
Preferably, the lengths of the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34 are equal, the widths of the first linear motor 31 and the second linear motor 32 are equal, and the widths of the third linear motor 33 and the fourth linear motor 34 are equal.
Preferably, the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34 are all short stator linear motors.
Preferably, the current-collecting device 10 is further comprised of four power supply rails and four current-collecting shoes. Here, as shown in fig. 1, a power supply rail may be disposed below the base column 5, and a baffle may be disposed above the power supply rail, so as to ensure power supply stability in severe environments such as rainy and snowy weather. Specifically, two of the power supply rails and two power receiving shoes may be provided on one side of the base pillar 5, and the other two power supply rails and two power receiving shoes may be provided on the other side of the base pillar 5.
Example 2
As shown in fig. 2, this embodiment provides a novel control method for a short stator magnetic levitation train, which includes:
when the train is in the starting process, the suspension device 4 is controlled to work, and the first linear motor 31, the second linear motor 32, the third linear motor 33 and the fourth linear motor 34 are controlled to work simultaneously, so that the train is ensured to reach the required maximum acceleration;
when the train reaches the required maximum acceleration, the first linear motor 31 and the second linear motor 32 are controlled to gradually reduce the output;
when the train reaches the rated speed, the first linear motor 31 and the second linear motor 32 are controlled to be out of operation, and only the third linear motor 33 and the fourth linear motor 34 are controlled to provide traction for the train.
Preferably, in this embodiment:
in the process of train acceleration, meets the following conditions，/>The method comprises the steps of carrying out a first treatment on the surface of the Wherein,normal force generated for the first linear motor 31, is->Normal force generated for the second linear motor 32, < >>Normal force generated for the third linear motor 33, < >>For the normal force generated by the fourth linear motor 34, and (2)>For the levitation force generated by the first levitation means 41, < >>For the levitation force generated by the second levitation means 42, < >>Is the gravity of the train;
when the train is traveling at a rated speed,，/>。
the foregoing is merely a preferred embodiment of the present invention, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the invention, and the scope of the invention should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (11)
1. The utility model provides a novel short stator maglev train system, its characterized in that, this system includes automobile body (1), suspension frame (2), linear electric motor (3), suspending device (4), base post (5), first guider (8) and second guider (9), suspension frame (2) set up in automobile body (1) bottom, its characterized in that, linear electric motor (3) include first linear electric motor (31), second linear electric motor (32), third linear electric motor (33) and fourth linear electric motor (34), first linear electric motor (31) and second linear electric motor (32) symmetry set up in both sides of base post (5) and be located the inboard of the upper end of suspension frame (2), third linear electric motor (33) and fourth linear electric motor (34) symmetry set up in both sides of base post (5) and be located the inboard of the lower extreme of suspension frame (2), first linear electric motor (31) and second linear electric motor (32) produce downward normal force, third linear electric motor (33) and fourth linear electric motor (34) produce upward normal force.
2. The novel short-stator maglev train system of claim 1, wherein the levitation device (4) comprises a first levitation device (41) and a second levitation device (42) symmetrically arranged on two sides of the base column (5), the first levitation device (41) comprises a first levitation magnet (411) and a first F-shaped rail (412) arranged above the first levitation magnet (411), the first levitation magnet (411) is connected with the left inner side of the levitation frame (2), the first F-shaped rail (412) is arranged above the left upper side of a first support beam (6) on the upper surface of the base column (5), the second levitation device (42) comprises a second levitation magnet (421) and a second F-shaped rail (422) arranged above the second levitation magnet (421), the second levitation magnet (421) is connected with the right inner side of the levitation frame (2), and the second F-shaped rail (422) is arranged above a second support beam (7) on the upper surface of the base column (5).
3. The novel short stator maglev train system of claim 2, wherein a primary coil of the first linear motor (31) is disposed on an upper surface of the first F-shaped rail (412), and a primary coil of the second linear motor (32) is disposed on an upper surface of the second F-shaped rail (422).
4. The novel short stator maglev train system of claim 1, wherein the first guide device (8) and the second guide device (9) are symmetrically disposed on both sides of the base column (5) and independently controlled.
5. The novel short stator maglev train system of claim 4, wherein the first guiding device (8) comprises a first guiding electromagnet (81) and a first guiding rail (82), the second guiding device (9) comprises a second guiding electromagnet (91) and a second guiding rail (92), the first guiding electromagnet (81) and the second guiding electromagnet (91) are symmetrically arranged at the middle end of the suspension frame (2), and the first guiding rail (82) and the second guiding rail (92) are symmetrically arranged at two sides of the base column (5).
6. The novel short stator maglev train system of claim 1, wherein the first linear motor (31) and the second linear motor (32) are connected in parallel, and the third linear motor (33) and the fourth linear motor (34) are connected in parallel.
7. The novel short stator maglev train system of claim 6, wherein the first linear motor (31), the second linear motor (32), the third linear motor (33) and the fourth linear motor (34) are equal in length, the first linear motor (31) and the second linear motor (32) are equal in width, and the third linear motor (33) and the fourth linear motor (34) are equal in width.
8. The novel short stator maglev train system of claim 7, wherein the first linear motor (31), the second linear motor (32), the third linear motor (33), and the fourth linear motor (34) are short stator linear motors.
9. The novel short stator maglev train system of claim 1, further comprising a current collector (10) comprising four power rails and four current collector shoes.
10. A novel short stator maglev train control method applied to the novel short stator maglev train system of any one of claims 1 to 9, characterized in that the method comprises:
when the train is in a starting process, the suspension device (4) is controlled to work, and the first linear motor (31), the second linear motor (32), the third linear motor (33) and the fourth linear motor (34) are controlled to work simultaneously, so that the train is ensured to reach the required maximum acceleration;
when the train reaches the required maximum acceleration, the first linear motor (31) and the second linear motor (32) are controlled to gradually reduce the output;
when the train reaches the rated speed, the first linear motor (31) and the second linear motor (32) are controlled to be out of operation, and only the third linear motor (33) and the fourth linear motor (34) are controlled to provide traction for the train.
11. The novel short stator maglev train control method of claim 10, further comprising:
in the process of train acceleration, meets the following conditions，/>The method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>Normal force generated for the first linear motor (31), -a first linear motor (31) is provided with a first linear motor and a second linear motor (31) is provided with a second linear motor>Normal force generated for the second linear motor (32), ->Normal force generated for the third linear motor (33), ->Normal force generated for the fourth linear motor (34), ->For the levitation force generated by the first levitation means (41)>The levitation force generated by the second levitation device (42), G is the gravity of the train;
when the train is traveling at a rated speed,，/>。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311280128.3A CN117002267B (en) | 2023-10-07 | 2023-10-07 | Novel short-stator magnetic levitation train system and control method |
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| CN202311280128.3A CN117002267B (en) | 2023-10-07 | 2023-10-07 | Novel short-stator magnetic levitation train system and control method |
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| CN117002267B true CN117002267B (en) | 2023-12-12 |
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Citations (13)
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