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Control method for magnetic suspension bearing, magnetic suspension bearing and magnetic suspension bearing system

A technology of magnetic suspension bearings and control methods, which is applied in the direction of bearings, shafts and bearings, mechanical bearing testing, etc., can solve the problems of magnetic suspension bearing system damage, falling down, and the rotor cannot be suspended stably, so as to maintain stable suspension, improve reliability and The effect of service life

Pending Publication Date: 2019-12-13
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology

[0005] At least some embodiments of the present invention provide a control method of a magnetic suspension bearing, a magnetic suspension bearing, and a magnetic suspension bearing system, to at least solve the problem in the related art that due to the failure of some bearing stator coils, the rotor cannot be suspended stably and falls down during operation. Technical Problems with Damage Caused by Magnetic Suspension Bearing System

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  • Control method for magnetic suspension bearing, magnetic suspension bearing and magnetic suspension bearing system
  • Control method for magnetic suspension bearing, magnetic suspension bearing and magnetic suspension bearing system
  • Control method for magnetic suspension bearing, magnetic suspension bearing and magnetic suspension bearing system

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Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part 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 shall fall within the protection scope of the present invention.

[0045] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a control method for a magnetic suspension bearing, the magnetic suspension bearing and a magnetic suspension bearing system. The method comprises the following steps: a firstpart of a bearing coil is determined to exist in the magnetic suspension bearing according to a coil failure signal, and is an invalid bearing coil; and failure treatment is carried out on the basis of a magnetic circuit where the first part of the bearing coil is located. According to the control method for the magnetic suspension bearing, the magnetic suspension bearing and the magnetic suspension bearing system, the technical problem of damage to the magnetic suspension bearing system due to that a rotor cannot be stably suspended and falls off during running, which is caused by the failureof a part of a bearing stator coil, in the related technologies, is solved.

Description

technical field [0001] The invention relates to the field of magnetic suspension bearing control, in particular to a control method of a magnetic suspension bearing, a magnetic suspension bearing and a magnetic suspension bearing system. Background technique [0002] Magnetic suspension bearings use electromagnetic force to suspend the rotor in the air, so as to avoid mechanical contact between the rotor and the stator. The magnetic suspension bearing system is usually used in high-speed rotating systems. According to the technical standards related to the magnetic suspension bearing provided in the related art, when the rotor suddenly drops at the rated speed, the magnetic suspension bearing system is guaranteed not to be damaged in the case of not less than two times. [0003] However, in the actual operation of the magnetic suspension bearing, it is inevitable that various unpredictable situations (which may include but not limited to: coil short circuit, coil open circu...

Claims

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Application Information

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IPC IPC(8): F16C32/04G01M13/04G01R31/00G01R31/02
CPCF16C32/0451F16C32/0457G01M13/04G01R31/00
Inventor 胡余生郭伟林王凡贺永玲胡叨福赵聪
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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