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Control method, control device and air conditioner of magnetic suspension bearing system

A technology of magnetic suspension bearings and control methods, which is applied to bearing assembly, program control in sequence/logic controllers, bearings, etc., can solve problems affecting the suspension accuracy and stability of rotors, and achieve improved suspension accuracy and stability, and reduced The effect of small fluctuation components

Active Publication Date: 2017-09-22
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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Problems solved by technology

During the operation of the magnetic suspension bearing system, the mass eccentricity of the rotor will cause vibration, which will affect the suspension accuracy and stability of the rotor

Method used

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  • Control method, control device and air conditioner of magnetic suspension bearing system
  • Control method, control device and air conditioner of magnetic suspension bearing system
  • Control method, control device and air conditioner of magnetic suspension bearing system

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] The invention discloses a control method of a magnetic suspension bearing system to realize the control of the magnetic suspension bearing system and improve the suspension precision and stability of the rotor.

[0056] see figure 1 , figure 1 It is a flowchart of a control method of the magnetic suspension bearing system disclosed in ...

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Abstract

A magnetic bearing system control method, comprising: obtaining a displacement signal of a rotor in a magnetic bearing system; determining in the displacement signal a sinusoidal component at the same frequency with the rotational speed; compensating the displacement signal with a compensation signal, the compensation signal being a product of the sinusoidal component and an optimal vortex motion separation weighted coefficient; generating a control signal based on the current compensated displacement signal so as to control a power amplifier to adjust the exciting current flowing through the bearing coil in the magnetic bearing. The control method can reduce control signal fluctuation and improve the levitation precision and stability of a rotor. In addition, the present invention also relates to a corresponding control device and air conditioner.

Description

technical field [0001] The invention belongs to the technical field of magnetic suspension bearings, and in particular relates to a control method, a control device and an air conditioner of a magnetic suspension bearing system. Background technique [0002] The magnetic suspension bearing system is a new type of bearing system. During its operation, the rotor is suspended in the air by magnetic force, so that there is no mechanical contact between the rotor and the stator. It has the advantages of low wear, low energy consumption and low noise. At present, the magnetic suspension bearing system is mostly used in compressors, that is, magnetic suspension compressors. During the operation of the magnetic suspension bearing system, the mass eccentricity of the rotor will cause vibration, which will affect the suspension accuracy and stability of the rotor. Among them, the levitation accuracy characterizes the displacement of the rotor from the center position. [0003] How t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04F16C41/00G05B19/04
CPCF16C32/0451
Inventor 黄辉胡余生李燕郭伟林胡叨福贺永玲
Owner GREE ELECTRIC APPLIANCES INC
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