Magnetic suspension bearing device and control method for magnetic suspension bearing
A technology of a magnetic suspension bearing and a control method, applied in the field of magnetic suspension, can solve the problems of low assembly efficiency of the magnetic suspension bearing, easy damage to the balance of the rotor shaft, and easy wear of the surface of the rotor shaft.
Active Publication Date: 2020-10-20
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] Embodiments of the present invention provide a magnetic suspension bearing device and a control method for the magnetic suspension bearing, so as to at least solve the technical problems in the related art that the assembly efficiency of the magnetic suspension bearing is low, the surface of the rotor shaft is easy to wear, the balance of the rotor shaft is easily damaged, and the stable operation of the magnetic suspension system is affected.
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[0029] 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.
[0030] 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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The invention discloses a magnetic bearing device and a magnetic bearing control method. The method comprises the following steps that a coil switching signal is detected; if the coil switching signalindicates that the bearing coil is switched from a normal operation state to a suspension state, the connection mode of the bearing coil is controlled to switch to a first connection mode, wherein, in the first connection mode, the two bearing coils on a X-axis and a Y-axis generate magnetic fields in the opposite direction to a magnetic steel field, so that the magnetic steel suction on the rotor shaft is counteracted. According to the magnetic bearing device and the magnetic bearing control method, the technical problem that the assembly efficiency of magnetic bearing is low, the rotor shaft surface is easy to wear so that the rotor shaft balance can be easy to damage and the stable operation of a magnetic system is affected in correlation technique is solved.
Description
technical field [0001] The invention relates to the technical field of magnetic suspension, in particular to a magnetic suspension bearing device and a control method for the magnetic suspension bearing. Background technique [0002] In related technologies, the magnetic suspension bearing can use magnetic steel to provide a bias magnetic field required for bearing suspension, and use bearing coils to provide a control magnetic field required for bearing suspension, so as to achieve the purpose of magnetic suspension bearing suspension. However, in the current levitation process of the magnetic suspension bearing, due to the existence of the magnetic steel, the magnetic suspension bearing has the following defects: Defect 1. The attraction of the magnetic steel to the bearing rotor causes the rotor shaft to be tightly adsorbed inside the bearing after it stops floating, thereby limiting Operations on the rotor shaft (e.g. rotational, translational operations), e.g., figure ...
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IPC IPC(8): F16C32/04
CPCF16C32/0451F16C32/0459
Inventor 王凡朱振宇赵聪严安顺李旭明
Owner GREE ELECTRIC APPLIANCES INC