CN114683865A

CN114683865A - Magnetic suspension train vibration adjusting device and method and magnetic suspension train

Info

Publication number: CN114683865A
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: 2022-07-01
Anticipated expiration: 2040-12-30
Also published as: CN114683865B

Abstract

Provided are a magnetic levitation train vibration adjusting device, a method and a magnetic levitation train, wherein the device comprises: the superconducting magnet vibration 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 vibration 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, different damping modes can be controlled and switched according to different vibration states of the vibration frame, vibration adjustment of the vibration frame can be effectively improved, and invalid consumption of energy is saved.

Description

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

Technical Field

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

Background

The high-speed flying train adopts a superconducting electric suspension technical route, the superconducting electric suspension is passive self-stabilization suspension, and a vehicle-mounted magnet automatically provides suspension force and certain guiding force required by suspension for the train when the vehicle-mounted magnet reaches a certain speed along with the train. However, the discontinuity of the inherent structure of the zero-flux coil can cause the induced magnetic field to have non-uniformity along the advancing direction of the train, thereby causing the fluctuation of the levitation force and further causing the vibration problem of the train.

An effective method for inhibiting 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, the damping effect is insufficient under the disturbance condition, the regulation of the vibration of a train under large disturbance is not facilitated, the active damping coil is used alone, the electric energy consumption is required to be supplied in the whole process, the consumption of ineffective energy is increased to a certain extent, and therefore a new technical scheme is urgently needed to improve the efficiency of vibration regulation of the magnetic suspension train.

Disclosure of Invention

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a magnetic levitation train vibration adjusting apparatus, a method and a magnetic levitation train, so as to improve the effective adjustment of the magnetic levitation train vibration.

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

in a first aspect, there is provided a magnetic levitation train vibration conditioning apparatus, the apparatus comprising: the superconducting magnet vibration 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 vibration 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 a method of vibration regulation of a magnetic levitation 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 and switch 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 adjusted.

Further, the on-board controller controls the damping control circuit to trigger and switch the active damping circuit or the passive damping circuit according to the vibration state of the vibration rack, so as to adjust the vibration of the vibration rack, further comprising:

when the vibration state of the vibration frame reaches a second threshold value and does not reach a first threshold value, 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 perform active damping on the vibration frame.

In a third aspect, there is also provided a magnetic levitation vehicle comprising a magnetic levitation vehicle vibration adjusting apparatus as provided above.

By adopting the technical scheme, the device and the method for adjusting the vibration of the magnetic suspension train and the magnetic suspension train are characterized in that the damping control circuit capable of being 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 is saved.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 shows a schematic representation of the structure of a vibration control device of a magnetic levitation vehicle according to an exemplary embodiment of the present disclosure;

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

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

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

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

FIG. 6 shows front and back coil views of a damping control circuit in an embodiment of the present description;

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

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

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

fig. 10 is a schematic structural diagram of an onboard controller in an embodiment of the present description;

FIG. 11 is a schematic diagram showing the effect of passive damping alone in the prior art;

FIG. 12 is a schematic diagram showing the effect of active damping alone in the prior art;

FIG. 13 is a schematic diagram illustrating the effect of active and passive combined damping in the embodiment of the present disclosure;

figure 14 shows a schematic representation of the steps of a method for vibration regulation of a magnetic levitation vehicle according to an embodiment of the present description;

FIG. 15 is a schematic diagram showing the steps of a circuit for switching a damping control circuit in an embodiment of the present specification;

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

Description of the symbols 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 and a first pin;

511b and a second pin;

512a, a third pin;

512b, a fourth pin;

520. a second circuit;

520a and a third damping control circuit;

520b and 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, a fifth pin;

521b, a sixth pin;

522a, a seventh pin;

522b, an eighth pin;

1602. a device;

1604. a processor;

1606. a memory;

1608. a drive 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments herein without making any creative effort, shall fall within the scope of protection.

It should be noted that the terms "first," "second," and the like in the description and claims herein and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments herein described are 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, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.

The magnetic suspension train can realize high-speed running through a magnetic suspension technology, and the non-continuity of the inherent structure of the zero-flux coil can cause the non-uniformity of the induction magnetic field along the advancing direction of the train, so that the fluctuation of the suspension force is brought to further cause the vibration problem of the train. The conventional method for inhibiting the vibration is to introduce a damping coil, the vibration is inhibited in an active damping or passive damping mode, the active damping is to input alternating current into coils which are oppositely arranged, the current runs in a magnetic field to form a damping force, so that the train vibration is inhibited, but the active damping needs to contribute in the whole train process and consumes some invalid electric energy, the passive damping is to generate an induced eddy current by the relative motion of the passive damping coil in the magnetic field according to the Faraday's law of electromagnetic induction, so that the damping force is generated to block the steering frame vibration, but the passive damping inhibiting effect is limited, and the effect of inhibiting the vibration is not obvious when large vibration occurs.

In order to solve the above problems, embodiments of the present disclosure provide a magnetic levitation train adjusting device, where two damping circuits, namely active damping and passive damping, are simultaneously disposed on a circuit structure through improvement of structure and circuit connection and design of damping coils, so that different damping modes (active damping, passive damping or undamped) can be selected according to a vibration state of a train, an effect of suppressing train vibration can be improved, and meanwhile, ineffective consumption of energy can be avoided.

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

The vibration frame 100 may be a bogie of a maglev train, a train car is disposed on the bogie, the superconducting magnet 200 is fixed on the bogie and may be used to realize superconducting levitation, so as to realize high-speed running of the train, for a single car, a plurality of superconducting magnets may be disposed on both sides of the bogie, or only one superconducting magnet is disposed on each side, each superconducting magnet 200 is provided with a dewar, the dewar is made of an insulating material, so as to prevent the superconducting magnet 200 from interfering with external magnetic substances, and the dewar may be made of an aluminum material.

Vibration sensor 300 is with real-time detection the vibration state of bogie, vibration state can show vibration amplitude and vibration frequency, the vibration can be understood as rocking from top to bottom or the horizontal direction rocks, vibration amplitude is the displacement of rocking, vibration frequency is the frequency of rocking, vibration sensor 300 can be for displacement sensor, speedtransmitter and acceleration sensor etc. can measure the data that bogie rocked amplitude or frequency, in some other embodiments, can also acquire the vibration state of bogie according to presetting collection frequency, can avoid like this vibration sensor works always, guarantees its working property's stability. 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 suppression efficiency of train vibration control can be effectively improved.

The vehicle-mounted controller 400 may be a module capable of achieving information acquisition, processing and signal output, may be a vehicle controller of a train, may reduce the superposition of modules, and improve the control efficiency, and may also be an independent control module, such as an integrated chip, and may preset corresponding processing logic to achieve a corresponding function, and the design of the independent function module may avoid integrating logic for optimizing vibration adjustment on the vehicle controller, thereby reducing the difficulty of designing the function module, and facilitating batch production.

In an embodiment of the present description, the damping control circuit includes a first circuit 510; the first circuit 510 is provided with a first power supply 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 source 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 source 513, so as to form a first damping control circuit 510a, and the two ends of the first coil 511 are further connected through a second switch 515, so as to form a second damping control circuit 510 b; 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 5 b.

In actual work, a plurality of damping control circuits can be arranged on a train, vibration adjustment can be realized on different carriages of the train or different positions of the same carriage, in other embodiments, the whole train can be provided with one damping control circuit, a plurality of first circuits 510 are arranged in the damping control circuit, vibration adjustment on different carriages and different positions of the train can also be realized, and the positions and the number of the damping control circuits and the first circuits are not limited in the specification.

The first power source 513 may be a vehicle-mounted power source, in order to realize that the current in the coil forms a damping force in the magnetic field, the current should be an alternating current, optionally, the vehicle-mounted power source is a vehicle power source, in order to ensure a power supply device inside the train, the power supply capability of the vehicle-mounted power source has a relatively high requirement, generally, several hundred volts, such as 220V or 400V, and actually, when active damping is performed, because the resistance of the coil is very small, a relatively large current can be realized only with a very small voltage, so that the requirement of suppressing vibration is met, and therefore, voltage reduction processing needs to be performed on the voltage of the vehicle-mounted power source.

Therefore, in order to meet the requirement of voltage reduction, the first switch and the second switch may be Insulated Gate Bipolar Transistor (IGBT) switches, and may implement the function of an inverter, in practical applications, a plurality of adjusting devices are needed for the length of a train to implement vibration adjustment of the whole train, and therefore more switches are needed, and the cost of the whole adjusting device may be reduced due to low cost and convenient use of the IGBT switches.

In some embodiments, because the IGBT switch has limited inversion capability, it is difficult to invert a few hundred volts to a small voltage of a few volts or a few tens of volts, and thus, because the larger inversion requirement far exceeds its performance limit, the efficiency of the switching tube is extremely low, and it is difficult to meet the conventional small voltage requirement, an inverter may be further provided at the output end of the first power supply 513, and the inverter inverts the bus voltage (i.e., the first power supply output voltage) to a preset voltage during active damping according to a preset requirement, so as to meet the requirement of active damping, and thus, the inversion of the output voltage of the first power supply 513 may be achieved, and thereby the requirement of the coil voltage may be met.

As shown in fig. 4, which is a schematic structural diagram of a first coil and a second coil, the first coil and the second coil may be connected in series to form a whole damping coil, so that the number of turns of the active damping coil may be increased, in fig. 4, a first coil 511 is disposed inside a second coil 512, two outgoing lines at two ends 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 a first switch 514, two outgoing lines at two ends 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 first pin 511a and the third pin 512a are further connected with a positive electrode and a negative electrode of a first power supply 513, so that when the first switch 514 is closed and the second switch 515 is opened, the first coil 511 and the second coil 512 are connected in series to form a coil, active damping is realized after the first power source 513 is connected on a closed loop, when the first switch 514 is switched off and the second switch 515 is switched on, the first coil 511 forms a closed loop by itself, and current is generated by cutting a magnetic field through the coil, so that passive damping is realized.

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 the damping is passive, that is, when the second damping control circuit is connected, the first coil 511 generates an induced electromotive force and further generates an induced current due to the vibration of the vibration frame, and in order to generate a large induced current, a small resistance inductance is required, that is, the number of turns of the first coil 511 is small, for example, 2 turns, 4 turns, and the like, which is not limited in this specification. When active damping is needed, a power supply is connected to a first coil in the conventional technology, but since the number of turns of the first coil is small, a small voltage needs to be applied, so that a large current can be generated, since the bus voltage is large (generally several hundred volts), it is difficult to output a small voltage only through an IGBT switch, and the efficiency of an IGBT switching tube is extremely low, so that the effect of active damping is affected, and an additional inverter increases the design cost and the operation cost, in the embodiment of the present specification, a second coil 512 is connected in series through the first coil 511, the first coil is used as a damping coil during passive damping, and during active damping, the number of turns of the damping coil, such as 10 turns, 20 turns and the like, is increased by using the first coil 511 and the second coil 512 as damping coils, that is, the resistance inductance of the active damping coil is increased, on the premise of meeting the requirement of larger current, larger voltage, such as dozens of volts or even hundreds of volts, needs to be output, so that the inversion of corresponding voltage can be realized only through the IGBT switch, the design of the inverter (namely the IGBT switch) is easy, and the efficiency of a switch tube can be improved.

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, and therefore the first switch can achieve passive damping taking the first coil as a damping coil and close the second switch can achieve active damping taking the second coil as the damping coil, the integrity of the damping coil can be guaranteed through the first coil and the second coil which are arranged independently, connection among the coils is avoided, and when vibration adjustment is carried out, the safety of current operation in the coils is guaranteed.

In a specific embodiment, as shown in fig. 2 and fig. 3, which are schematic installation diagrams of the vibration adjusting apparatus for a magnetic levitation train according to the embodiments of the present disclosure, a superconducting magnet 200 is fixed on two sides of a vibration rack 100 (also called a bogie), a dewar is disposed on the superconducting magnet 200, a plurality of sets of coils are sequentially disposed on the dewar, each set of coils includes two coils disposed side by side, the coils are fixed on the dewar by bolts, the coils may be the above first coil 511 and the above second coil 512, the vibration sensor 300 is fixed on the bogie and is in communication connection with an on-board controller, which is capable of performing signal and data transmission, the on-board controller 400 is disposed inside a train car and may be in signal connection with a vehicle controller, the on-board controller 400 may also be in signal connection with a first switch 514 and a second switch 515, and controlling a first switch 514 and a second switch 515, and sending a starting instruction to the vehicle-mounted controller 400 by the vehicle control unit so as to perform regulation.

On the basis of the above embodiments, when each group of coils is coils arranged side by side up and down, as shown in fig. 5 to 7, where fig. 5 is a schematic structural diagram of a damping coil in an embodiment of the present specification (fig. 5a is a schematic winding diagram of a coil, and fig. 5B is a schematic structural diagram of a coil), 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 specification, and fig. 7 is a schematic circuit diagram of a damping control circuit in the embodiment of the present specification; wherein the damping control circuit may further comprise a second circuit 520, the second circuit 520 being provided with a second power supply 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 supply 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 supply 523, so that a third damping control circuit 520a is formed, and the two ends of the third coil 521 are further connected through a fourth switch 525, so that a fourth damping control circuit 520b is formed; the first damping control circuit 510a and the third damping control circuit 520a form an active damping control circuit 5 a; the second damping control circuit 510b and the fourth damping control circuit 520b form a passive damping control circuit 5 b.

In the embodiment of the present specification, 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 further connected with positive and negative poles of a second power supply 523, so that when the third switch 524 is closed and the fourth switch 525 is opened, the third coil 521 and the fourth coil 522 are connected in series to form a coil, and in a closed loop, after the second power supply 523 is connected, active damping is realized, and in the third switch 524, when the fourth switch 525 is closed, the third coil 521 forms a closed loop by itself, and cuts a magnetic field through the coil to generate current, thereby realizing passive damping.

Fig. 8 is a schematic diagram of a connection structure of an active damping control circuit according to an embodiment of the present disclosure; by closing the first switch 514 and the third switch 524 and opening the second switch 515 and the fourth switch 525, 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 of 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, and opening the first switch 514 and the third switch 524, the second damping control circuit 510b and the fourth damping control circuit 520b are both connected, so that the passive damping of the vibration frame is realized.

In order to invert the output voltage of the second circuit 520, the third switch 524 and the fourth switch 525 may be selected from Insulated Gate Bipolar Transistor (IGBT) switches.

In actual work, each damping control circuit 500 can be provided with a corresponding vehicle-mounted controller 400, when each damping control circuit 500 comprises a plurality of sub-circuits (such as the first circuit 510 and the second circuit 520), each sub-circuit can also be provided with a corresponding sub-controller, and the sub-controllers have the 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, great requirements on the operational logic design and the manufacturing design of the module can be met, the setting of the sub-controllers can reduce the difficulty of the design, reduce the cost, improve the design and the manufacturing efficiency, realize the efficient control of specific circuits, and improve the vibration regulation efficiency.

In order to realize the control of the damping control circuit, as shown in fig. 10, which is a schematic structural diagram of an on-board controller in the embodiment of the present specification, the on-board controller 400 includes a first determining module 410, a first control module 420, and a second control module 430; the first judging module 410 is configured to judge 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 open when the vibration state of the vibration frame reaches a first threshold, so as to perform active damping on 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 the first threshold, so as to perform passive damping on the vibration frame.

It can be understood that, the on-board controller 400 switches the damping type through the switch tube according to the vibration condition of the vibration frame, when the vibration amplitude or frequency is small, the influence on passengers or the train itself in the train is small, the vibration can be suppressed through the passive damping mode, the consumption of electric energy is not needed, when the vibration amplitude or frequency of the vibration frame is large, the passengers in the train have obvious feeling, meanwhile, the stability of other devices in the train also has certain influence, the vibration is suppressed by the passive damping through the difficult quick realization, and therefore the active damping can be selected to perform the quick suppression of the vibration. Therefore, the present specification can avoid the consumption of ineffective electric energy and ensure the rapid suppression of the vibration frame through the main and passive switching regulation.

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 by the switching tube to serve as a passive damping coil 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 suppress vibration when the vibration displacement exceeds the fluctuation range of the threshold by 3 mm.

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

It can be understood that a certain vibration is necessarily generated during the high-speed running process of the train, the slight vibration is normal and is not sensible to passengers, therefore when the train is in the slight vibration, the adjustment of passive damping can be cancelled, the passive damping coil can be prevented from being continuously electrified, the temperature of the coil is increased, the performance of the coil is not affected, and the coil is further protected, therefore, the embodiment of the specification can be used as the condition for starting the passive damping by setting a second threshold value, exemplarily, the second threshold value can be 0.5mm, the first threshold value is 3mm, when the vibration amplitude of the vibration frame is less than 0.5mm, the train is in a relatively stable state, the damping adjustment can not be provided, when the vibration amplitude of the vibration frame is between 0.5mm and 3mm, the vibration amplitude of the train is slightly obvious, and the passengers have a certain feeling, at the moment, passive damping adjustment can be carried out, when the vibration amplitude of the vibration frame exceeds 3mm, the vibration amplitude of the train is obvious, passengers feel obvious, and at the moment, active damping is needed to quickly suppress vibration.

In this specification, when active damping is adopted 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 at the same time, the magnitude of the inverter output voltage of the IGBT switch can be controlled, specifically, the magnitude of the output voltage is adjusted 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 to realize a large damping force, and under the condition that the resistance inductance of the coil is not changed, the voltage of the output coil can be adjusted to realize the adjustment of the current in the coil.

The relation between the vibration amplitude and the coil current can be set, under the condition that the coil resistance is determined, the relation between the vibration amplitude and the coil voltage is equivalently determined, and because the coil voltage is determined by the output duty ratio of the IGBT switch, the relation between the vibration amplitude and the output duty ratio of the IGBT switch can be determined, such as a function relation, a mapping relation and the like.

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

It should be noted that, in practical applications, the whole working process of the damping control circuit in the adjusting device may be undamped-passive damping-active damping-undamped, for example, fig. 11 is a schematic diagram of an effect of using passive damping alone, for example, fig. 12 is a schematic diagram of an effect of using active damping alone, for example, fig. 13 is a schematic diagram of an effect of using active damping alone, for example, the schematic diagram of the effect of using active damping alone provided in the embodiment of the present specification is shown, so that the characteristics of fast response of passive damping without power consumption and strong adjusting capability of active damping can be fully utilized, the adjusting efficiency of the vibration frame is ensured, and electric energy is saved at the same time. In some other embodiments, the whole working process 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 further electric energy is saved.

On the basis of the vibration adjusting device for a magnetic suspension train provided above, the embodiment of the present specification may also provide a vibration adjusting method for a magnetic suspension train, as shown in fig. 14, which is a schematic diagram of steps of a vibration adjusting method for a magnetic suspension train provided by the embodiment of the present specification, and the present specification provides the method operation steps 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 manner of performing the steps in a multitude of orders and does not represent the only order of execution. When an actual system or apparatus product executes, it can execute sequentially or in parallel according to the method shown in the embodiment or the figures. Specifically, 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 and switch 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 adjusted.

In the running process of the train, the vibration state of the vibration frame, such as the vibration amplitude or the frequency of the vibration frame, is acquired in real time, and the vehicle-mounted controller can select active damping or passive damping according to the acquired vibration state of the vibration frame, so that the consumption of ineffective electric energy is reduced, and the suppression 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 value and does not reach a first threshold value, 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 perform 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 zero to zero and from small to large, so that the corresponding vibration state is met through the adjustment sequence of passive damping and active damping, the response speed can be increased when vibration suppression is carried out, and the ineffective electric energy consumption is reduced.

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

As shown in fig. 16, for a computer device provided for embodiments herein, the computer device being disposed inside a magnetic levitation train, 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, etc. For example, and without limitation, memory 1606 may include any one or more of the following in combination: any type of RAM, any type of ROM, flash memory devices, hard disks, optical disks, etc. More generally, any memory may use any technology to store information. Further, any memory may provide volatile or non-volatile retention of information. Further, any memories may represent fixed or removable components of the computer device 1602. In one case, when the processor 1604 executes the associated instructions, which are 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, or the like, for interacting with any memory.

Computer device 1602 can also include an input/output module 1610(I/O) for receiving various inputs (via input device 1612) and for providing various outputs (via 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 module 1610(I/O), input device 1612, and output device 1614 may not be included, but merely as a computing device in a network. Computer device 1602 can 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, such as over a local area network, a wide area network (e.g., the Internet), a point-to-point connection, etc., or any combination thereof. Communications link 1622 may include any combination of hardwired links, wireless links, routers, gateway functions, name servers, etc., as dictated by any protocol or combination of protocols.

Corresponding to the methods in fig. 14 to 15, the 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-described method.

Embodiments herein also provide computer readable instructions, wherein a program therein causes a processor to perform the method as shown in fig. 14-15 when the instructions are executed by the processor.

It should be understood that, in various embodiments herein, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments herein.

It should also be understood that, in the embodiments herein, the term "and/or" is only one kind of association relation describing an associated object, meaning that three kinds of relations may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly 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 implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed 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 units can be selected according to actual needs to achieve the purposes of the embodiments herein.

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

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions in the present disclosure may substantially or partially contribute to the prior art, or all or part of the technical solutions may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) 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), a magnetic disk, or an optical disk, and various media capable of storing program codes.

The principles and embodiments of this document are explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts; meanwhile, for the general technical personnel in the field, according to the idea of this document, there may be changes in the concrete implementation and the application scope, in summary, this description should not be understood as the limitation of this document.

Claims

1. A magnetic levitation train vibration adjustment apparatus, comprising: the superconducting magnet vibration 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;

2. The apparatus of claim 1, 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 anode 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 cathode of the first power supply, so that a first damping control circuit is formed, and the two ends of the first coil are also connected through a second switch, so that a second damping control circuit is formed;

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,

when the first switch is closed, the second switch is opened, the first damping control circuit is connected, and the damping control circuit is switched to be an active damping control circuit;

when the first switch is switched off, the second switch is switched on, the second damping control circuit is connected, and the damping control circuit is switched into a passive damping control circuit.

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

the first judging module is used for judging whether the vibration state of the vibration rack reaches a first threshold value;

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 perform 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 perform passive damping on the vibration frame.

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, and the second threshold value is smaller than the first threshold value;

and when the vibration state of the vibration frame does not reach the second threshold value, controlling the first switch and the second switch to be switched off, and not executing damping on the vibration frame.

6. The apparatus of claim 5,

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

the first control module is further used for controlling the first switch to output a 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 anode 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 cathode of the second power supply, so that a third damping control circuit is formed, and the 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 regulation of a magnetic levitation train, the method comprising:

9. The method of claim 8, wherein the controlling the damping control circuit to trigger switching the active damping circuit or the passive damping circuit according to the vibration state of the vibration frame by the vehicle-mounted controller so as to adjust the vibration of the vibration frame further comprises:

10. A magnetic levitation vehicle, characterized in that the vehicle is provided with a device for adjusting the vibration of the magnetic levitation vehicle as claimed in any one of claims 1 to 7.