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Self-adaptive controller and online adjusting method for blade tip clearance of magnetic suspension compressor

An adaptive controller and controller technology, applied in the field of compressors, can solve problems such as the inability to guarantee real-time rapid adjustment of the compressor, and achieve the effects of good response performance, improved reliability, and real-time adjustment.

Pending Publication Date: 2022-02-15
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is impossible to guarantee the real-time and rapid adjustment of the blade tip clearance during the operation of the compressor in order to achieve a rapid switch between improving efficiency and preventing surge

Method used

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  • Self-adaptive controller and online adjusting method for blade tip clearance of magnetic suspension compressor
  • Self-adaptive controller and online adjusting method for blade tip clearance of magnetic suspension compressor
  • Self-adaptive controller and online adjusting method for blade tip clearance of magnetic suspension compressor

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0050] It should also be...

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Abstract

The invention is suitable for the field of compressors, and discloses a self-adaptive controller and an online adjustment method for a blade tip clearance of a magnetic suspension compressor, the online adjustment method for the blade tip clearance of the magnetic suspension compressor is implemented through the self-adaptive controller, the self-adaptive controller automatically adjusts control parameters according to the balance position of a magnetic suspension rotor, and the desired system responsiveness is guaranteed.The online adjustment method for the blade tip clearance of the magnetic suspension compressor comprises the steps that the balance position of a rotor of the magnetic suspension compressor is adjusted according to the required blade tip clearance; the self-adaptive controller adaptively adjusts control parameters and then outputs a control signal to control a magnetic suspension bearing of the magnetic suspension compressor, so that the rotor is stabilized at a balanced position; when the balance position of the compressor rotor is changed, the control parameters of the self-adaptive controller are automatically changed, manual parameter debugging is not needed, the stability and good response performance of the system can still be guaranteed, and real-time adjustment of the blade tip clearance is guaranteed when the compressor normally operates.

Description

technical field [0001] The invention relates to the field of compressors, in particular to an adaptive controller and an online adjustment method for blade tip clearance of a magnetic levitation compressor. Background technique [0002] At present, the centrifugal cold compressor is widely used in the world to decompress and cool the subcooling tank to obtain a large flow of superfluid helium. Active magnetic suspension bearings use electromagnetic force to suspend the rotor in space without friction and lubrication, and have universal advantages such as no wear, high speed, and long life. The active magnetic suspension bearing can also achieve the desired performance by designing the control algorithm, so as to realize the stable and efficient operation of the compressor. Therefore, active magnetic suspension bearings are the best choice for supporting components of cold compressor rotors in current superfluid helium refrigeration systems. [0003] Figure 4 A schematic d...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 张舒月伍继浩龚领会
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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