CN114683865B

CN114683865B - Magnetic levitation train vibration adjusting device and method and magnetic levitation train

Info

Publication number: CN114683865B
Application number: CN202011629221.7A
Authority: CN
Inventors: 张艳清; 冯馨月; 张志华; 胡道宇; 夏委; 胡良辉
Original assignee: Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
Current assignee: Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2023-12-05
Anticipated expiration: 2040-12-30
Also published as: CN114683865A

Abstract

Provided herein are a maglev train vibration adjustment apparatus, method, and maglev train, the apparatus comprising: the vibration control device comprises a vibration frame, a superconducting magnet, a vibration sensor, a vehicle-mounted controller and a damping control circuit; the superconducting magnets are arranged on two sides of the vibration frame, and each superconducting magnet is provided with a damping control circuit; the damping control circuit comprises an active damping control circuit and a passive damping control circuit; the vibration sensor is used for collecting the vibration state of the vibration frame, and the vibration state of the vibration frame comprises the vibration amplitude and the frequency of the vibration frame; the vehicle-mounted controller is used for controlling the damping control circuit to trigger and execute active damping or passive damping according to the vibration state of the vibration frame, and can control and switch different damping modes according to different vibration states of the vibration frame, so that the vibration adjustment of the vibration frame can be effectively improved, and the ineffective consumption of energy sources is saved.

Description

Magnetic levitation train vibration adjusting device and method and magnetic levitation train

Technical Field

The invention belongs to the field of magnetic levitation trains, and particularly relates to a magnetic levitation train vibration adjusting device and method and a magnetic levitation train.

Background

The high-speed aerotrain adopts a superconductive electric levitation technical route, the superconductive electric levitation is a passive self-stabilizing levitation, and the vehicle-mounted magnet automatically provides levitation force and certain guiding force for levitation of the train when the vehicle-mounted magnet reaches a certain speed along with the train. However, the discontinuity of the natural structure of the zero-flux coil causes the induced magnetic field thereof to have non-uniformity in the train advancing direction, thereby causing levitation force fluctuation and thus train vibration problems.

The effective method for restraining vibration in the prior art is to introduce a damping coil, the traditional damping mode is divided into active damping and passive damping, the passive damping coil is used alone to generate insufficient damping effect under the condition of disturbance, the vibration of a train is not beneficial to being regulated under the condition of large disturbance, and the active damping coil is used alone to consume electric energy in a whole process, so that the consumption of non-effective energy sources can be increased to a certain extent, and therefore, a new technical scheme is needed to improve the efficiency of vibration regulation of a magnetic levitation train.

Disclosure of Invention

In view of the foregoing problems of the prior art, it is an object herein to provide a device and a method for adjusting vibration of a magnetic levitation train and a magnetic levitation train, so as to improve the effective adjustment of vibration of the magnetic levitation train.

In order to solve the technical problems, the specific technical scheme is as follows:

in a first aspect, provided herein is a maglev train vibration-adjusting apparatus, the apparatus comprising: the vibration control device comprises a vibration frame, a superconducting magnet, a vibration sensor, a vehicle-mounted controller and a damping control circuit; the superconducting magnets are arranged on two sides of the vibration frame, and each superconducting magnet is provided with a damping control circuit;

the damping control circuit comprises an active damping control circuit and a passive damping control circuit;

the vibration sensor is used for collecting the vibration state of the vibration frame, and the vibration state of the vibration frame comprises the vibration amplitude and the frequency of the vibration frame;

the vehicle-mounted controller is used for controlling the damping control circuit to trigger and execute active damping or passive damping according to the vibration state of the vibration frame.

In a second aspect, there is also provided herein a method of adjusting vibration of a maglev train, the method comprising the steps of:

the vibration sensor acquires the vibration state of the vibration frame in real time and sends the vibration state to the vehicle-mounted controller;

and the vehicle-mounted controller controls the damping control circuit to trigger switching of the active damping circuit or the passive damping circuit according to the vibration state of the vibration frame, so that the vibration of the vibration frame is regulated.

Further, the vehicle-mounted controller controls the damping control circuit to trigger switching of the active damping circuit or the passive damping circuit according to the vibration state of the vibration frame, so as to regulate the vibration of the vibration frame further comprises:

when the vibration state of the vibration frame reaches a second threshold and does not reach a first threshold, the vehicle-mounted controller controls the second switch to be closed, and the first switch to be opened so as to execute passive damping on the vibration frame;

when the vibration state of the vibration frame reaches a first threshold value, the vehicle-mounted controller controls the first switch to be closed, and the second switch to be opened so as to execute active damping on the vibration frame.

In a third aspect, there is also provided a magnetic levitation train comprising a magnetic levitation train vibration adjustment device as provided above.

By adopting the technical scheme, the vibration adjusting device and method for the magnetic levitation train and the magnetic levitation train are characterized in that the damping control circuit which can be switched into the active damping control circuit and the passive damping control circuit is arranged on the train, and different damping modes can be controlled and switched according to different vibration states of the vibration frame, so that the vibration adjustment of the vibration frame can be effectively improved, and the ineffective consumption of energy sources is saved.

The foregoing and other objects, features and advantages will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments herein or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments herein and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram showing the structure of a vibration control device of a maglev train in an embodiment of the present specification;

FIG. 2 is a schematic view showing the installation position of the vibration adjusting device in the embodiment of the present specification;

FIG. 3 is a schematic diagram showing the position of the damping control circuit in an embodiment of the present disclosure;

FIG. 4 is a schematic view showing the structure of a first circuit coil in the embodiment of the present specification;

FIG. 5 is a schematic diagram showing the coil structure of the damping control circuit in the embodiment of the present specification;

FIG. 6 shows a front and rear view of a coil of the damping control circuit in an embodiment of the present disclosure;

FIG. 7 is a schematic diagram showing the connection structure of the damping control circuit in the embodiment of the present specification;

FIG. 8 shows a schematic diagram of the passive damping control circuit connection in an embodiment of the present disclosure;

FIG. 9 illustrates an active damping control circuit connection schematic diagram in an embodiment of the present disclosure;

fig. 10 is a schematic diagram showing the structure of the in-vehicle controller in the embodiment of the present specification;

FIG. 11 shows a schematic of the passive damping alone effect of the prior art;

FIG. 12 illustrates a prior art active damping alone effect schematic;

FIG. 13 shows a schematic diagram of the effect of active and passive integrated damping in an embodiment of the present disclosure;

FIG. 14 is a schematic diagram showing steps of a method for adjusting vibration of a maglev train in an embodiment of the present disclosure;

FIG. 15 is a schematic diagram showing the steps of switching the circuit to the damping control circuit in the embodiment of the present disclosure;

fig. 16 shows a schematic structural view of an apparatus provided in an embodiment of the present specification.

Description of the drawings:

100. a vibration frame;

200. a superconducting magnet;

300. a vibration sensor;

400. a vehicle-mounted controller;

500. a damping control circuit;

5a, an active damping control circuit;

5b, a passive damping control circuit;

510. a first circuit;

510a, a first damping control circuit;

510b, a second damping control circuit;

511. a first coil;

512. a second coil;

513. a first power supply;

514. a first switch;

515. a second switch;

511a, first pins;

511b, a second pin;

512a, third pin;

512b, fourth pin;

520. a second circuit;

520a, a third damping control circuit;

520b, a fourth damping control circuit;

521. a third coil;

522. a fourth coil;

523. a second power supply;

524. a third switch;

525. a fourth switch;

521a, fifth pins;

521b, sixth pin;

522a, seventh pin;

522b, eighth pin;

1602. an apparatus;

1604. a processor;

1606. a memory;

1608. a driving mechanism;

1610. an input/output module;

1612. an input device;

1614. an output device;

1616. a presentation device;

1618. a graphical user interface;

1620. a network interface;

1622. a communication link;

1624. a communication bus.

Detailed Description

The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the disclosure. All other embodiments, based on the embodiments herein, which a person of ordinary skill in the art would obtain without undue burden, are within the scope of protection herein.

It should be noted that the terms "first," "second," and the like in the description and claims herein and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.

The magnetic levitation train can run at a high speed through a magnetic levitation technology, and the non-continuity of the inherent structure of the zero-magnetic-flux coil can cause non-uniformity of an induction magnetic field along the advancing direction of the train, so that levitation force fluctuation is brought and train vibration is caused. The conventional method for suppressing vibration is to introduce a damping coil, and suppress vibration by means of active damping or passive damping, wherein the active damping is to input alternating current into oppositely arranged coils, and the current runs in a magnetic field to form damping force, so that the vibration of a train is suppressed, but the active damping needs to contribute to the whole process of the train, and some invalid electric energy is consumed, the passive damping is due to the fact that the passive damping coil is a closed conductor loop, and according to Faraday electromagnetic induction law, relative motion of the passive damping coil in the magnetic field generates induced eddy current to generate damping force to block the vibration of a steering frame, but the passive damping suppression effect is limited, and the effect of suppressing the vibration is not obvious when large vibration occurs.

In order to solve the above problems, the embodiments of the present disclosure provide a magnetic levitation train adjusting device, which is configured by improving the structure and circuit connection, and designing the damping coil, and simultaneously providing two damping circuits, i.e., active damping and passive damping, on a circuit structure, so that different damping modes (active damping, passive damping or undamped) can be selected according to the vibration state of the train, thereby improving the effect of damping the vibration of the train, and avoiding ineffective consumption of energy.

As shown in fig. 1, a schematic structural diagram of a magnetic levitation train adjusting device according to an embodiment of the present disclosure, the device includes: a vibration frame 100, a superconducting magnet 200, a vibration sensor 300, an in-vehicle controller 400, and a damping control circuit 500; the superconducting magnets 200 are arranged on two sides of the vibration frame 100, and a damping control circuit 500 is arranged on each superconducting magnet 200; the damping control circuit 500 includes an active damping control circuit 5a and a passive damping control circuit 5b; the vibration sensor 300 is used for acquiring the vibration state of the vibration frame 100, wherein the vibration state of the vibration frame 100 comprises the vibration amplitude and the frequency of the vibration frame 100; the in-vehicle controller 400 is configured to control the damping control circuit 500 to trigger the active damping or the passive damping according to the vibration state of the vibration frame 100.

The vibration frame 100 may be a bogie of a magnetic levitation train, the train carriage is disposed on the bogie, the superconducting magnet 200 is fixed on the bogie, and may be used to implement superconducting levitation, so as to implement high-speed running of the train, and for a single carriage, multiple superconducting magnets may be disposed on two sides of the bogie, or only one superconducting magnet may be disposed on each side, each superconducting magnet 200 is provided with a dewar, and the dewar is an insulating material, so that interference of the superconducting magnet 200 to external magnetic substances is avoided, and the dewar may be an aluminum material.

The vibration sensor 300 detects the vibration state of the bogie in real time, the vibration state can represent the vibration amplitude and the vibration frequency, the vibration can be understood to be vertical shaking or horizontal shaking, the vibration amplitude is shaking displacement, the vibration frequency is shaking frequency, the vibration sensor 300 can be data of the vibration amplitude or frequency of the bogie, such as a displacement sensor, a speed sensor, an acceleration sensor and the like, and in some other embodiments, the vibration state of the bogie can be obtained according to the preset collection frequency, so that the vibration sensor can be prevented from working all the time, and the stability of the working performance of the vibration sensor is ensured. In addition, a plurality of vibration sensors 300 can be arranged at different positions of the bogie, so that the control of different positions of the bogie can be improved, and the inhibition efficiency of train vibration control can be effectively improved.

The vehicle-mounted controller 400 can be a module capable of achieving information acquisition, processing and signal output, can be a whole vehicle controller of a train, can reduce the superposition of the modules and improve the control efficiency, and can also be an independent control module, such as an integrated chip, can preset corresponding processing logic to achieve corresponding functions, and the design of the independent functional module can avoid integrating logic for optimizing vibration adjustment on the whole vehicle controller, so that the difficulty of designing the functional module is reduced, and batch production is facilitated.

In the present embodiment, the damping control circuit includes a first circuit 510; the first circuit 510 is provided with a first power source 513, a first coil 511 and a second coil 512; one end of the first coil 511 is electrically connected to the positive electrode of the first power supply 513, the other end of the first coil 511 is connected to one end of the second coil 512 through a first switch 514, the other end of the second coil 512 is electrically connected to the negative electrode of the first power supply 513, so as to form a first damping control circuit 510a, and two ends of the first coil 511 are also connected through a second switch 515, so as to form a second damping control circuit 510b; the first damping control circuit 510a is an active damping control circuit 5a, and the second damping control circuit 510b is a passive damping control circuit 5b.

In actual operation, a plurality of damping control circuits may be disposed on the train, and vibration adjustment may be implemented on different carriages of the train or different positions of the same carriage, in some other embodiments, the whole train may be disposed with one damping control circuit, and a plurality of first circuits 510 may be disposed in the damping control circuit, and vibration adjustment on different carriages of the train and different positions may also be implemented, where the positions and numbers of the damping control circuits and the first circuits are not limited in this specification.

The first power source 513 may be a vehicle power source, in order to form a damping force in a magnetic field by using a current in a coil, the current should be an alternating current, alternatively, the vehicle power source is a vehicle power source, in order to ensure power supply equipment in a train, the power supply capability of the vehicle power source is required to be higher, typically, several hundred volts, such as 220v and 400v, and in actual active damping, a larger current can be realized by using a small voltage due to a small resistance of the coil, so that the requirement of suppressing vibration is met, and thus, the voltage of the vehicle power source needs to be reduced.

Therefore, in order to meet the voltage reduction requirement, the first switch and the second switch may be insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, abbreviated as IGBT) switches, so that the inverter function may be realized, in practical application, more adjusting devices are needed to implement vibration adjustment of the whole train due to the length of the train, so that more switches are needed, the cost of the whole adjusting device may be reduced due to low cost of the IGBT switches and convenient use, and it is noted that, because voltage inversion is only needed during active damping, the second switch may be a conventional on-off switch, so that the cost may be further reduced, and in some other embodiments, the first switch and the second switch may also be other inversion switches, which are not limited in this specification.

In some embodiments, because the inversion capability of the IGBT switch itself is limited, it is difficult to perform inversion of several hundred volts into a small voltage of several volts or several tens of volts, so that the efficiency of the switching tube thereof is extremely low due to the large inversion requirement far exceeding the performance limit thereof, and it is difficult to satisfy the conventional small voltage requirement, so that an inverter may be further disposed at the output end of the first power source 513, and the inverter inverts the bus voltage (i.e., the output voltage of the first power source) into a preset voltage during active damping according to the preset requirement, so as to satisfy the requirement of active damping, and thus the inversion effect on the output voltage of the first power source 513 may be achieved, thereby satisfying the requirement of the coil voltage.

As shown in fig. 4, a schematic structural diagram of a first coil and a second coil is shown, the first coil and the second coil may be connected in series to form an entire damping coil, so as to increase the number of turns of the coil for active damping, in fig. 4, the first coil 511 is disposed inside the second coil 512, two end outgoing lines of the first coil 511 are respectively provided with a first pin 511a and a second pin 511b, the first pin 511a and the second pin 511b are connected through the first switch 514, two end outgoing lines of the second coil 512 are respectively provided with a third pin 512a and a fourth pin 512b, the second switch 515 is connected between the third pin 512a and the fourth pin 512b, and the third pin 512a is also connected with the positive and negative poles of the first power source 513, so that when the first switch 514 is closed, the first coil 511 and the second coil 512 form a coil, and when the second switch 515 is opened, the first switch is connected in a closed loop, and after the first switch 514 is connected in series, the first switch 515 is opened, the first coil is cut off, thereby realizing that the first damping coil is closed, and the first damping coil is connected in series.

In actual operation, the larger the current in the damping coil is, the larger the generated damping force is, and the better the damping effect is. Therefore, when passive damping, i.e. when the second damping control circuit is connected, the first coil 511 generates induced electromotive force due to the vibration of the vibration frame, and thus generates induced current, and in order to generate larger induced current, a smaller resistance inductance is required, i.e. the number of turns of the first coil 511 is smaller, such as 2 turns, 4 turns, etc., which is not limited in this specification. When active damping is required, a power supply is connected to the first coil in the conventional technology, but since the number of turns of the first coil is small, a very large current can be generated by applying a very small voltage, in view of the fact that the bus voltage is large (generally several hundred volts), the output of the small voltage is difficult to realize by the IGBT switch, and the efficiency of the IGBT switch tube is extremely low, the effect of active damping is affected, and the design cost and the operation cost are increased by additionally adding the inverter.

In some other embodiments, a first coil and a second coil which are arranged in parallel (or side by side) can be further arranged, the number of turns of the second coil is larger than that of the first coil, two ends of the first coil are connected through a first switch, the second switch is communicated with a first power supply through a second switch, so that the first switch is closed to realize passive damping by taking the first coil as a damping coil, the second switch is closed to realize active damping by taking the second coil as the damping coil, the integrity of the damping coil can be ensured through the independently arranged first coil and second coil, connection among a plurality of coils is avoided, and the safety of current operation in the coils is ensured when vibration adjustment is performed.

In a specific embodiment, as shown in fig. 2 and fig. 3, an installation schematic diagram of a magnetic levitation train vibration adjusting device according to the embodiment of the present disclosure is shown, where superconducting magnets 200 are fixed on two sides of a vibration frame 100 (also referred to as a bogie), a dewar is disposed on the superconducting magnets 200, a plurality of groups of coils are sequentially disposed on the dewar, each group of coils includes two coils disposed side by side, the coils are fixed on Du Washang by bolts, the coils may be a first coil 511 and a second coil 512 above, the vibration sensor 300 is fixed on the bogie and is in communication connection with a vehicle-mounted controller, so as to enable signal and data transmission, the vehicle-mounted controller 400 is disposed inside a train carriage and can be in signal connection with the vehicle-mounted controller, the vehicle-mounted controller 400 can also be in signal connection with a first switch 514 and a second switch 515, so as to control the first switch 514 and the second switch 515, and the vehicle-mounted controller 400 sends a start command to perform adjustment work.

On the basis of the above embodiment, when each set of coils is a coil arranged side by side up and down, as shown in fig. 5 to 7, wherein fig. 5 is a schematic structural diagram of the damping coil in the embodiment of the present disclosure (fig. 5a is a coil winding schematic diagram, fig. 5B is a coil structure schematic diagram), fig. 6 is a front view (fig. 6 a) and a rear view (fig. 6B) of the damping coil in the embodiment of the present disclosure, and fig. 7 is a schematic circuit diagram of the damping control circuit in the embodiment of the present disclosure; wherein the damping control circuit may further comprise a second circuit 520, the second circuit 520 being provided with a second power source 523, a third coil 521 and a fourth coil 522; one end of the third coil 521 is electrically connected to the positive electrode of the second power source 523, the other end of the third coil 521 is connected to one end of the fourth coil 522 through a third switch 524, the other end of the fourth coil 522 is electrically connected to the negative electrode of the second power source 523, so as to form a third damping control circuit 520a, and two ends of the third coil 521 are also connected through a fourth switch 525, so as to form a fourth damping control circuit 520b; the first damping control circuit 510a and the third damping control circuit 520a form an active damping control circuit 5a; the second damping control circuit 510b and the fourth damping control circuit 520b form a passive damping control circuit 5b.

In the embodiment of the present disclosure, the coil connection structure in the second circuit 520 is similar to the coil connection structure in the first circuit 510. Specifically, as shown in fig. 5A, a third coil 521 is disposed inside the fourth coil 522, two end outgoing lines of the third coil 521 are respectively provided with a fifth pin 521a and a sixth pin 521b, the fifth pin 521a and the sixth pin 521b are connected through the third switch 524, two end outgoing lines of the fourth coil 522 are respectively provided with a seventh pin 522a and an eighth pin 522b, the fourth switch 525 is connected between the seventh pin 522a and the eighth pin 522b, and the fifth pin 521a and the seventh pin 522a are also connected with the positive and negative electrodes of the second power source 523, so that when the third switch 524 is closed, the fourth switch 525 is opened, the third coil 521 and the fourth coil 522 are connected in series to form one coil, and on one closed loop, after the second power source 523 is connected, the third switch 524 is opened, and when the fourth switch 525 is closed, the third coil itself forms a closed loop, and a passive damping current is generated through the coil, thereby realizing a passive damping magnetic field.

FIG. 8 is a schematic diagram showing the connection structure of an active damping control circuit according to one embodiment of the present disclosure; by closing the first switch 514 and the third switch 524, the second switch 515 and the fourth switch 525 are opened, so that the first damping control circuit 510a and the third damping control circuit 520a are both connected, thereby realizing active damping of the vibration frame.

FIG. 9 is a schematic diagram showing a connection structure of a passive damping control circuit according to an embodiment of the present disclosure; by closing the second switch 515 and the fourth switch 525, the first switch 514 and the third switch 524 are opened, so that the second damping control circuit 510b and the fourth damping control circuit 520b are both connected, thereby realizing passive damping of the vibration frame.

To implement inversion of the output voltage in the second circuit 520, the third switch 524 and the fourth switch 525 may select an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, abbreviated as IGBT) switch.

In actual operation, a corresponding vehicle-mounted controller 400 may be set for each damping control circuit 500, when each damping control circuit 500 includes a plurality of sub-circuits (such as the first circuit 510 and the second circuit 520), a corresponding sub-controller may also be set for each sub-circuit, where the sub-controller has a complete control function of the vehicle-mounted controller 400, so that all control logics can be prevented from being concentrated on the vehicle-mounted controller 400, and thus, great requirements are placed on the arithmetic logic design and the manufacturing design of the module, and the setting of the sub-controller can reduce the difficulty of the design, thereby reducing the cost, improving the design and manufacturing efficiency, and realizing efficient control of specific circuits, thereby improving the efficiency of vibration adjustment.

In order to realize the control of the damping control circuit, as shown in fig. 10, a schematic structural diagram of a vehicle-mounted controller in the embodiment of the present disclosure is shown, where the vehicle-mounted controller 400 includes a first judging module 410, a first control module 420 and a second control module 430; the first determining module 410 is configured to determine whether a vibration state of the vibration frame reaches a first threshold; the first control module 420 is configured to control the first switch 514 to be closed and the second switch 515 to be opened when the vibration state of the vibration frame reaches a first threshold value, so as to perform active damping of the vibration frame; the second control module 430 is configured to control the second switch 515 to be closed and the first switch 514 to be opened when the vibration state of the vibration frame does not reach a first threshold value, so as to perform passive damping of the vibration frame.

It can be understood that, the vehicle-mounted controller 400 switches damping types through the switch tube according to the vibration condition of the vibration frame, when the vibration amplitude or frequency is smaller, the influence on passengers in the train or the train itself is smaller, the vibration can be restrained through the passive damping mode, no electric energy consumption is needed, when the vibration amplitude or frequency of the vibration frame is larger, the passengers in the train have obvious feeling, meanwhile, the stability of other devices in the train is also influenced, the passive damping is difficult to quickly realize to restrain the vibration, and therefore, the active damping can be selected to quickly restrain the vibration. Therefore, the consumption of invalid electric energy can be avoided through active and passive switching adjustment, and the rapid inhibition of the vibration frame can be ensured.

In a specific embodiment, the first threshold may be 3mm, the active damping opening threshold is set to be that the vertical vibration displacement exceeds the stable suspension position by 3mm, the coil is controlled to serve as a passive damping coil through the switch tube when the vibration displacement is smaller than the fluctuation range of the threshold by 3mm, and the coil serves as an active damping coil to restrain vibration when the vibration displacement exceeds the fluctuation range of the threshold by 3mm, and in some other embodiments, the first threshold is set according to the number of turns and the position of an actual coil, and is not limited in the specification.

On the basis of the above embodiment, as shown in fig. 10, the vehicle-mounted controller 400 may further include a second judging module 440, where the second judging module 440 is configured to judge whether the vibration state of the vibration frame reaches a second threshold; when the vibration state of the vibration frame reaches a second threshold and does not reach a first threshold, the second switch 515 is controlled to be closed and the first switch 514 is controlled to be opened to perform passive damping of the vibration frame.

It can be understood that certain vibration can occur in the process of running the train at a high speed, the slight vibration is normal, no sense is given to passengers, therefore, when the train is in the slight vibration, the adjustment of passive damping can be canceled, the continuous energization of the passive damping coil can be avoided, the coil temperature is increased, the performance of the coil is affected, and further the coil is protected.

In this embodiment of the present disclosure, when active damping is used to suppress vibration, that is, when the vibration state of the vibration frame exceeds a first threshold value, the first control module controls the first switch to close the first damping control circuit, and meanwhile, may further control the magnitude of the output voltage of the IGBT switch, specifically, adjust the magnitude of the output voltage according to the magnitude of the vibration state, for example, when the vibration amplitude is large, a large current value needs to be introduced into the damping coil, so that a large damping force can be achieved, and in the case that the coil resistance inductance is unchanged, the voltage of the output coil may be adjusted to achieve adjustment of the current in the coil.

The relation between the vibration amplitude and the coil current can be set, and the relation between the vibration amplitude and the coil voltage is determined when the coil resistance is determined, and the relation between the vibration amplitude and the output duty ratio of the IGBT switch, such as a functional relation, a mapping relation and the like, can be determined because the coil voltage is determined by receiving the output duty ratio of the IGBT switch.

Further, in order to avoid long-term adjustment and use of the output duty ratio of the IGBT switch, thereby affecting continuous and stable output of the performance thereof, a corresponding vibration amplitude interval can be set, and the output duty ratio of the corresponding IGBT switch is set according to the vibration amplitude interval, so that real-time adjustment of the output duty ratio of the IGBT switch can be avoided, and stable output of the IGBT switch performance is ensured.

It should be noted that, in practical application, the whole working flow of the damping control circuit in the adjusting device may be undamped-passive damping-active damping-undamped, such as the effect schematic diagram of passive damping used alone in fig. 11, the effect schematic diagram of active damping used alone in fig. 12, and the effect schematic diagram of active and passive integrated control provided in the embodiment of the present disclosure in fig. 13, so that the characteristics of quick response of passive damping without power consumption and strong active damping adjustment capability can be fully utilized, the adjusting efficiency of the vibration frame is ensured, and meanwhile, the electric energy is saved. In some other embodiments, the whole working flow of the damping control circuit in the adjusting device can be undamped-passive damping-active damping-passive damping-undamped, so that the adjustment of passive damping is added after active damping, the vibration state of the vibration frame can be fully utilized for adjustment, and electric energy is further saved.

On the basis of the magnetic levitation train vibration adjusting device provided above, the embodiment of the present specification may further provide a magnetic levitation train vibration adjusting method, as shown in fig. 14, which is a schematic diagram of steps of the magnetic levitation train vibration adjusting method provided in the embodiment of the present specification, where the method operation steps are as described in the embodiment or the flowchart, but may include more or less operation steps based on conventional or non-inventive labor. The order of steps recited in the embodiments is merely one way of performing the order of steps and does not represent a unique order of execution. When a system or apparatus product in practice is executed, it may be executed sequentially or in parallel according to the method shown in the embodiments or the drawings. As shown in fig. 14, the method may include:

s101: the vibration sensor acquires the vibration state of the vibration frame in real time and sends the vibration state to the vehicle-mounted controller;

s102: and the vehicle-mounted controller controls the damping control circuit to trigger switching of the active damping circuit or the passive damping circuit according to the vibration state of the vibration frame, so that the vibration of the vibration frame is regulated.

In the running process of the train, the vehicle-mounted controller can select active damping or passive damping according to the obtained vibration state of the vibration frame by acquiring the vibration state of the vibration frame, such as the vibration amplitude or the frequency of the vibration frame in real time, so that the consumption of ineffective electric energy is reduced, and the inhibition effect of vibration is ensured.

Specifically, as shown in fig. 15, step S102 may further include:

s201: when the vibration state of the vibration frame reaches a second threshold and does not reach a first threshold, the vehicle-mounted controller controls the second switch to be closed, and the first switch to be opened so as to execute passive damping on the vibration frame;

s202: when the vibration state of the vibration frame reaches a first threshold value, the vehicle-mounted controller controls the first switch to be closed, and the second switch to be opened so as to execute active damping on the vibration frame.

In the actual running process of the train, the vibration amplitude or frequency of the vibration frame is changed from none to big in sequence, so that the adjustment sequence of the passive damping and the active damping accords with the corresponding vibration state, the response speed can be improved when the vibration is restrained, and the ineffective electric energy consumption is reduced.

On the basis of the device and the method for adjusting the vibration of the magnetic levitation train, the embodiment of the specification also provides the magnetic levitation train, and the train comprises the device for adjusting the vibration of the magnetic levitation train. The magnetic levitation train can be a magnetic levitation high-speed train, and the specific operation environment is not limited in the specification.

As shown in fig. 16, for one computer device provided in embodiments herein, the computer device 1602 may include one or more processors 1604, such as one or more Central Processing Units (CPUs), each of which may implement one or more hardware threads. The computer device 1602 may also include any memory 1606 for storing any kind of information, such as code, settings, data, and the like. For example, and without limitation, memory 1606 may include any one or more of the following combinations: any type of RAM, any type of ROM, flash memory devices, hard disks, optical disks, etc. More generally, any memory may store information using any technique. Further, any memory may provide volatile or non-volatile retention of information. Further, any memory may represent fixed or removable components of the computer device 1602. In one case, when the processor 1604 executes associated instructions stored in any memory or combination of memories, the computer device 1602 can perform any of the operations of the associated instructions. The computer device 1602 also includes one or more drive mechanisms 1608, such as a hard disk drive mechanism, an optical disk drive mechanism, and the like, for interacting with any memory.

The computer device 1602 may also include an input/output module 1610 (I/O) for receiving various inputs (via an input device 1612) and for providing various outputs (via an output device 1614). One particular output mechanism may include a presentation device 1616 and an associated Graphical User Interface (GUI) 1618. In other embodiments, input/output modules 1610 (I/O), input devices 1612, and output devices 1614 may not be included as just one computer device in a network. The computer device 1602 may also include one or more network interfaces 1620 for exchanging data with other devices via one or more communication links 1622. One or more communication buses 1624 couple the above-described components together.

Communication link 1622 may be implemented in any manner, for example, through a local area network, a wide area network (e.g., the internet), a point-to-point connection, etc., or any combination thereof. Communication link 1622 may include any combination of hardwired links, wireless links, routers, gateway functions, name servers, etc., governed by any protocol or combination of protocols.

Corresponding to the method in fig. 14 to 15, embodiments herein also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above method.

Embodiments herein also provide a computer readable instruction wherein the program therein causes the processor to perform the method as shown in fig. 14-15 when the processor executes the instruction.

It should be understood that, in the various embodiments herein, the sequence number of each process described above does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments herein.

It should also be understood that in embodiments herein, the term "and/or" is merely one relationship that describes an associated object, meaning that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices, or elements, or may be an electrical, mechanical, or other form of connection.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the elements may be selected according to actual needs to achieve the objectives of the embodiments herein.

In addition, each functional unit in the embodiments herein may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions herein are essentially or portions contributing to the prior art, or all or portions of the technical solutions may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Specific examples are set forth herein to illustrate the principles and embodiments herein and are merely illustrative of the methods herein and their core ideas; also, as will be apparent to those of ordinary skill in the art in light of the teachings herein, many variations are possible in the specific embodiments and in the scope of use, and nothing in this specification should be construed as a limitation on the invention.

Claims

1. A device for vibration conditioning of a magnetic levitation train, the device comprising: the vibration control device comprises a vibration frame, a superconducting magnet, a vibration sensor, a vehicle-mounted controller and a damping control circuit; the superconducting magnets are arranged on two sides of the vibration frame, and each superconducting magnet is provided with a damping control circuit;

the vehicle-mounted controller is used for controlling the damping control circuit to trigger and execute active damping or passive damping according to the vibration state of the vibration frame;

the damping control circuit comprises a first circuit; the first circuit is provided with a first power supply, a first coil and a second coil; one end of the first coil is electrically connected with the positive electrode of the first power supply, the other end of the first coil is connected with one end of the second coil through a first switch, the other end of the second coil is electrically connected with the negative electrode of the first power supply, so that a first damping control circuit is formed, and two ends of the first coil are also connected through a second switch, so that a second damping control circuit is formed;

The vehicle-mounted controller comprises a first control module and a second control module; the first control module is used for controlling the first switch to be closed and the second switch to be opened when the vibration state of the vibration frame reaches a first threshold value so as to execute active damping on the vibration frame; the second control module is used for controlling the second switch to be closed and the first switch to be opened when the vibration state of the vibration frame does not reach a first threshold value so as to execute passive damping on the vibration frame.

2. The apparatus of claim 1, wherein the first damping control circuit is an active damping control circuit and the second damping control circuit is a passive damping control circuit.

3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,

when the first switch is closed, the second switch is opened, the first damping control circuit is communicated, and the damping control circuit is switched into an active damping control circuit;

when the first switch is opened, the second switch is closed, the second damping control circuit is communicated, and the damping control circuit is switched into a passive damping control circuit.

4. The apparatus of claim 2, wherein the onboard controller further comprises a first determination module;

The first judging module is used for judging whether the vibration state of the vibration frame reaches a first threshold value.

5. The apparatus of claim 4, wherein the onboard controller further comprises a second determination module;

the second judging module is used for judging whether the vibration state of the vibration frame reaches a second threshold value or not, and the second threshold value is smaller than the first threshold value;

when the vibration state of the vibration frame does not reach the second threshold value, the first switch and the second switch are controlled to be turned off, and damping of the vibration frame is not performed.

6. The apparatus of claim 5, wherein the device comprises a plurality of sensors,

when the vibration state of the vibration frame exceeds a first threshold,

the first control module is also used for controlling the first switch to output voltage corresponding to the vibration state according to the vibration state of the vibration frame.

7. The apparatus of claim 2, wherein the damping control circuit further comprises a second circuit;

the second circuit is provided with a second power supply, a third coil and a fourth coil; one end of the third coil is electrically connected with the positive electrode of the second power supply, the other end of the third coil is connected with one end of the fourth coil through a third switch, the other end of the fourth coil is electrically connected with the negative electrode of the second power supply, so that a third damping control circuit is formed, and two ends of the third coil are also connected through a fourth switch, so that a fourth damping control circuit is formed;

The first damping control circuit and the third damping control circuit form an active damping control circuit; the second damping control circuit and the fourth damping control circuit form a passive damping control circuit.

8. A method of vibration conditioning of a magnetic levitation train, the method comprising:

the vehicle-mounted controller controls the damping control circuit to trigger switching of the active damping circuit or the passive damping circuit according to the vibration state of the vibration frame, so that the vibration of the vibration frame is regulated;

wherein the damping control circuit comprises a first circuit; the first circuit is provided with a first power supply, a first coil and a second coil; one end of the first coil is electrically connected with the positive electrode of the first power supply, the other end of the first coil is connected with one end of the second coil through a first switch, the other end of the second coil is electrically connected with the negative electrode of the first power supply, so that a first damping control circuit is formed, and two ends of the first coil are also connected through a second switch, so that a second damping control circuit is formed;

9. The method of claim 8, wherein the controlling the damping control circuit to trigger switching of the active damping circuit or the passive damping circuit based on the vibration state of the vibration frame, thereby adjusting the vibration of the vibration frame, further comprises:

10. A magnetic levitation train, characterized in that the train is provided with a magnetic levitation train vibration adjusting device according to any of claims 1 to 7.