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

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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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[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0045] It should be noted that the terms "first" and "second" in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under ap...

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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...

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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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