Method for improving stability of high temperature superconducting magnetic suspension system

A system stability and high-temperature superconducting technology, which is applied in the field of improving the stability of high-temperature superconducting magnetic levitation systems, can solve the problems of high cost, complicated implementation process, and limited room for improvement of stability, and achieves wide application and simple operation. Effect

Inactive Publication Date: 2010-01-06
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0006] However, limited by the current high-temperature superconducting block material preparation technology and magnetic material technology, there is not much room for improving the stability of the high-temperature superconducting maglev system in methods two and three; There is also limited room for improvement in stability
Moreover, during the implementation of the above methods, it is usually necessary to change the components of the high-temperature superconducting maglev system. The implementation process is relatively complicated, the cost is large, and the effect is not ideal.

Method used

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  • Method for improving stability of high temperature superconducting magnetic suspension system
  • Method for improving stability of high temperature superconducting magnetic suspension system
  • Method for improving stability of high temperature superconducting magnetic suspension system

Examples

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Embodiment 1

[0027] A kind of embodiment of the present invention is: a kind of method that improves the stability of high-temperature superconducting magnetic levitation system, and its concrete practice is: A, field cooling: by supporting system 8, the suspension body of high-temperature superconducting magnetic levitation system is supported on the set Set the position, and then start the refrigeration equipment, so that the superconducting block material enters the superconducting state; B. Release the support: the support system releases the support for the suspension, so that the suspension is in a stable suspension state under no load; C. Loading: for the suspension Apply external force to the body to make it in a stable suspension state under the external force load; D. Release the load: release the applied external force, and the suspension body is in a stable suspension state again, and this state is used as the initial state of the high-temperature superconducting magnetic levitat...

Embodiment 2

[0037] This example is basically the same as the first example, except that the operation of loading and releasing the load (heavy object) is repeated once. The following table shows the dynamic stiffness and damping coefficient of the high-temperature superconducting maglev system that only loads and releases the load once after the secondary loading and releasing the load in this example, and it can be seen from the following table that after the secondary loading, Its dynamic stiffness and damping coefficient are further improved compared with only one loading, which are 100.3% and 39.77% higher than that of one loading respectively.

[0038]

Embodiment 3

[0040] Figure 5 It is shown that this example is basically the same as the first example, the only difference is that the loading method adopts hydraulic loading, and its specific method is: use the hydraulic pump 8 in the support system to lift the pillar, and pass the bolt, which can also be a bolt A class of fixing devices such as the HTS maglev car body 1 and the hydraulic pump 8 pillars are connected as one. The hydraulic pump 8 exerts force to forcibly lower the car body 1 to a lower position, so as to achieve the purpose of applying external force to the car body in a hydraulic manner, and keep it in a stable state under the external force load. When releasing the load, just remove the fixing devices such as bolts or bolts.

[0041] When the present invention is implemented, the loading of the C step and the release loading of the D step are generally repeated 1-3 times, and the effect is better. Of course, it can be repeated more times, but the effect of more than f...

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Abstract

A method for increasing the stability of a high-temperature superconductor magnetic suspension system comprises the following: (A) a step of field cooling, during which, a suspension body of the high-temperature superconductor magnetic suspension system is supported at a preset position through a support system, and then refrigeration equipment is started to ensure that a superconducting block enters superconducting state; (B) a step of support release, during which, the support system releases the support on the suspension body so as to ensure that the suspension body is in an idling stable state; (C) a step of loading, during which, external force is applied on the suspension body so as to ensure that the suspension body is in a stable suspension state under external force loading; and (D) a step of loading and the external force release, during which, the suspension body is in the stable suspension state again, and the state is taken as an initial state for the operation of the high-temperature superconductor magnetic suspension system. The method does not need to change the construction of the high-temperature superconductor magnetic suspension system, and ensures simple structure and operation and cost reduction; moreover, the method can obviously improve the stability of the high-temperature superconductor magnetic suspension system, and is suitable for any high-temperature superconductor magnetic suspension systems based on the high-temperature superconducting block type magnetic suspension principle.

Description

technical field [0001] The invention relates to the performance improvement of a high-temperature superconducting magnetic levitation system, in particular to a method for improving the stability of the high-temperature superconducting magnetic levitation system. Background technique [0002] The high-temperature superconducting magnetic levitation system is mainly divided into two application directions: if the axisymmetric rotary motion is used in the fields of bearings or flywheels; if the translational symmetric linear motion is used as a magnetic levitation (maglev) device for parallel motion, Such as linear motor conveyors and magnetic levitation vehicles. At present, the technological research in these two aspects is already on the eve of large-scale practical application. Various high-temperature superconducting maglev prototypes have been developed and successfully tested. Since 2000, China, Germany, and Russia have developed manned maglevs. High-temperature superc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L13/04G01R33/00
Inventor 郑珺邓自刚王家素王素玉张剑马光同林群煦张娅
Owner SOUTHWEST JIAOTONG UNIV
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